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Discoveries from Ancient Bones Illuminate Neanderthal Elephant Hunting Techniques

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Elephant bones from Lehringen, Germany

Evidence of Ancient Human Butchery on Lehringen Elephant Bones

Image Credit: VOLKER_MINKUS

In the backroom of the distinguished Schöningen Research Museum in Germany, a collection of mismatched cardboard boxes reveals archaeological treasures. Discovered in Rehringen, a village located 150 kilometers away, these boxes hold invaluable artifacts.

In 1948, researchers uncovered 125,000-year-old bones from the Paleoloxodon antiquus species in the bed of an ancient lake at Rehringen. While elephant bones from this period are somewhat common, this particular find included a 2.3-meter-long spear lodged between the ribs, marking a significant archaeological milestone.

This yew spear, identified as the oldest complete spear ever discovered, provides powerful evidence suggesting that Neanderthals were skilled big game hunters rather than mere scavengers. However, this remarkable discovery faced challenges. Alexander Rosenbrock, a dedicated school principal and amateur archaeologist, led the excavation, but a series of complications arose during the retrieval of the bones.

After digging began, a portion of the bones was improperly extracted before Rosenbrock and his team could arrive. Some bones were even reported stolen, and without a camera, he struggled to document their positions accurately. This led to a lengthy seven-year legal battle over the remains. Ultimately, Rosenbrock secured rights to keep the artifacts in Verden, where they unfortunately faded into obscurity before his passing in the 1950s.

Over the following 75 years, doubts lingered regarding the circumstances surrounding Rehringen’s find. Were the spear and bones simply coincidentally located together? Despite two examinations, researchers initially found no clear signs of butchery on the elephant bones.

The 1948 Excavation of Rehringen

Credits: Archives of the Cultural Heritage Office of Lower Saxony

Fast forward to 2025, Ivo Verheijen, Schöningen’s resident bone expert, began a meticulous examination of the Rehringen findings.

“We were informed there were just a few boxes,” Verheijen explained. “Upon arrival at the museum to collect them, we discovered numerous boxes piled in the attic!”

The Schöningen Center, located merely 300 meters from an active archaeological excavation site, has been operational since the mid-1990s. This site is notably home to 10 spears, around 300,000 years old, along with the Clacton and Rehringen spears, forming part of a limited collection of discovered spears from the Paleolithic era.

In 2017, the Schöningen team further solidified their expertise when they discovered a complete elephant. As a result, Verheijen was well-versed in handling ancient elephant bones before teaming up with Rehringen.

As Verheijen rummaged through the boxes, he uncovered a freshwater shell along with an excavation label, which intriguingly turned out to be an old 50 million mark banknote from the post-World War I inflation period. “It’s fascinating to have such unique labels,” he remarked.

This initiative resembled a cold-case investigation for Verheijen and his team. Thankfully, the collection comprised not only bones of elephants and other species but also invaluable records of Rosenbrock’s pioneering work, preserved and shared by his daughter Waltraut Deibel-Rosenbrock after his passing.

Verheijen quickly deduced that the Lehringen elephant had been intentionally slaughtered. “I immediately identified some distinct cut marks,” he stated. “It’s astonishing that these were overlooked for so long.”

Evidence of Cut Marks on Elephant Bones

Image Credit: Ivo Verheijen

The elephant, likely a solitary male standing over 3.5 meters tall at shoulder height, may have also been over 30 years old. It is suspected that he had been slaughtered both externally and internally, with organs removed shortly after death. This implies that the elephant likely perished with the spear embedded in its side, making the proximity of the bones and weapon no mere coincidence.

Neanderthals utilized flint tools to extract what they could from the carcass, leaving behind the rest for scavengers. While some bones showed signs of butchering, remains of bears, beavers, and aurochs were also discovered, indicating that Neanderthals frequently hunted and processed animals in proximity to the lake.

Verheijen speculates that modern elephants tend to move toward water when injured. Thus, after sustaining an injury from a spear, the elephant probably made its way towards the lake. This suggests that multiple spears may have been involved, and the hunters pursued the wounded creature until it collapsed, potentially breaking one spear in the process. The investigation will continue as the team plans to re-examine the spear.

Even at this early stage, the project has painted a vivid picture of what could be one of the most detailed Neanderthal hunting scenes ever documented.

Verheijen is also working diligently to preserve the Rehringen bones for future display. “This site holds great importance in Neanderthal history in Germany,” he emphasizes. “For reasons unknown, it has been largely forgotten, and our goal is to restore its rightful recognition.”

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Uncovering Neanderthal Hunting Techniques: Insights from Ancient Elephant Bones

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Evidence of Neanderthal hunting: Elephant bones from Lehringen, Germany

Credit: VOLKER_MINKUS

In the back room of the modern Schöningen Research Museum in Germany, old cardboard boxes house a fascinating discovery: remnants from Rehringen, a village 150 kilometers away.

In 1948, 125,000-year-old Paleoloxodon antique bones were excavated from an ancient lake’s bed in Rehringen. While such bones are not uncommon, this particular set contained a remarkable 2.3-meter-long spear embedded between the ribs.

This yew spear is recognized as the oldest complete spear ever discovered. The Rehringen Spear stands as the only known spear found alongside the skeleton of an extinct species. Since Neanderthals were the only humans in Europe at the time, this spear provides critical evidence that they hunted large game rather than scavenged. This was a groundbreaking discovery.

However, challenges arose. The excavation led by Alexander Rosenbrock, a local school principal and amateur archaeologist, revealed that around half of the bones were removed before he, his daughter, and volunteers arrived at the scene.

By the time Rosenbrock reached the site, some bones had already been stolen, and without a camera, he couldn’t sketch the crucial positions of the bones and spear. A lengthy legal battle ensued over the discovery, ultimately allowing Rosenbrock to keep the findings in Verden, which contributed to their obscurity. Sadly, the teacher passed away in the 1950s without publishing his findings.

Over the next 75 years, skepticism around Rehringen emerged. Were the spear and bones truly found together, or was it mere coincidence? Researchers accessed the findings twice but concluded that the elephant bones lacked evidence of butchery.

Excavation at Rehringen, 1948

Credit: Archives of the Cultural Heritage Office of Lower Saxony

Fast forward to 2025. Ivo Verheijen, the bone expert at Schöningen, began investigating the Rehringen finds.

“We were informed of just a few boxes,” Verheijen noted. “But upon reaching the museum, we discovered truckloads stored in the attic.”

The Schöningen Center, located 300 meters from an active excavation site since the mid-1990s, previously uncovered 10 spears around 300,000 years old from a nearby quarry. The Rehringen spear, alongside the Clacton spear, represents one of the oldest weapons from the Paleolithic era.

In 2017, the Schöningen team made headlines by discovering a complete ancient elephant, granting Verheijen substantial experience with these bones before switching his focus to Rehringen.

As he examined the artifacts, Verheijen removed an old box containing a freshwater shell from Rehringen and metadata from the excavation. He revealed that the label was a 50-million-mark banknote from the post-World War I inflation era, pointing out, “It used to be printed on one side only.”

This project resembled a cold-case investigation for Verheijen and his team. Fortunately, the box contained not just elephant bones but also flint tools and documentation of Rosenbrock’s work, preserved by his daughter Waltraut Deibel-Rosenbrock after his passing.

It didn’t take long for Verheijen to determine that the Lehringen elephant was slaughtered. “I quickly spotted distinct cut marks,” he stated. “It’s surprising that they weren’t previously noted.”

Cut marks found on an elephant rib

Credit: Ivo Verheijen

The elephant’s remains belonged to a young male, over 3.5 meters tall at the shoulder. Verheijen noted that solitary males are often easier targets for hunters.

Examination revealed that not only had the animal been butchered externally, but internal organs had also been removed, indicating that it was freshly dead when Neanderthals approached. It is highly probable that it died with the spear embedded in its side, suggesting a direct correlation between the bones and the weapon found on-site.

Early humans utilized simple flint tools to extract as much as possible from the carcass, leaving behind bones for scavengers. Interestingly, not every bone displayed signs of butchery—bear, beaver, and aurochs remains were also present, indicating that Neanderthals regularly hunted near the lake.

Verheijen suggested that modern elephants often head towards water when injured. Therefore, after being speared, the elephant likely made its way toward the lake, where it may have been pursued until it collapsed. One spear ultimately broke underneath it, which could explain some of the scene’s findings. The research team plans to further analyze the spear.

Even in its initial phases, the project has already painted a vivid picture of Neanderthal hunting behavior.

Verheijen aims to preserve Rehringen’s bones for exhibition, emphasizing, “This site is among the most significant Neanderthal locations in Germany. Despite being previously overlooked, we are dedicated to giving it the recognition it deserves.”

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Source: www.newscientist.com

8 Proven Techniques for Managing Anxiety Recommended by Psychologists

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Anxiety can be debilitating, making it hard to get through the day. However, both mild and severe anxiety can be managed effectively. When you feel an anxiety attack coming on, there are methods to regain your sense of calm.

For those who experience anxiety regularly, long-term strategies exist. Here are eight science-backed ways to reduce anxiety in both the short and long term.

1. Distance Yourself from Anxiety

Anxiety attacks often stem from catastrophic thoughts about future events. You might envision embarrassing yourself on a first date or fear failing in an interview.

To reduce anxiety, calm these racing thoughts without force. Simply trying to suppress them may be counterproductive. Instead, distance yourself from these thoughts to recognize their unreliability.

For instance, tell yourself, “I’m afraid I’ll embarrass myself on this first date.” (Of course, tailor this to your specific worries.) Once you’ve developed that distance, weigh the actual evidence regarding your fears, and recall past successes in coping with anxiety.

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2. Ground Yourself

Photo: Joe Waldron

When your mind races with catastrophic thoughts, your body mirrors that tension. The sympathetic nervous system prepares you for perceived threats, causing rapid breathing and muscle tension.

To combat this, activate the parasympathetic nervous system, which promotes relaxation. Grounding exercises, for instance, help you connect with the present moment. Try pausing to observe five things you can see, four you can feel, three sounds you can hear, two things you can smell, and one thing you can taste.

Another effective method involves standing comfortably, leaning forward to touch your toes for a minute, sending a signal that everything is safe.

3. Breathe Properly

Calm your body and enhance parasympathetic nervous system activity through controlled breathing techniques. One effective method is “box breathing.” This technique involves equal durations for inhaling, pausing, and exhaling.

  • Inhale for 4 seconds
  • Pause for 4 seconds
  • Exhale for 4 seconds
  • Repeat for at least 30 seconds.

This exercise helps regulate your breathing rate and depth, promoting overall calm.

4. Plan for a “Worry Period”

After calming your mind and body, persistent worries can feel overwhelming. Trying to “solve” them often results in unhelpful beliefs, such as needing to worry to prevent bad outcomes.

Instead, designate a “worry window” of about 30 minutes (preferably not before bedtime). During this time, allow yourself to express your worries. For the rest of the day, remind yourself you’ll address them later, breaking the cycle of anxiety.

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5. Face Your Fears

Photo: Joe Waldron

Avoidance may seem appealing, but it can amplify anxiety over time. Dodging anxiety-inducing situations can deny you valuable life experiences and reinforce negative beliefs.

Confronting fears allows for a “reality check” which can dispel irrational fears. Start gradually with manageable tasks, and if needed, visualize facing your fears in your imagination first.

6. Exercise Regularly

Integrating physical activity into your daily routine is not only beneficial for your body but also enhances your mental well-being. Research shows that exercise can improve mood and reduce the risk of anxiety disorders.

Physical activity provides distractions, fosters companionship, and improves overall health. Engaging in exercise familiarizes you with physical sensations that may otherwise trigger anxiety, making them less intimidating over time.

7. Avoid Caffeine

Caffeine is prevalent in our daily lives, from morning coffee to energy drinks, but it can worsen anxiety symptoms. By blocking the calming effects of the brain chemical adenosine, caffeine can lead to heightened anxiety responses.

Photo: Joe Waldron

A long-term adjustment to consider is reducing caffeine intake, as excessive consumption can significantly contribute to anxiety. Be aware that caffeine is also present in chocolate and tea.

8. Consider Your Long-Term Relationship with Anxiety

Believing that anxiety is a permanent part of who you are can lead to avoidance and increased discomfort. Alternatively, viewing anxiety as a fleeting state allows you to confront the discomfort more effectively.

Psychologists refer to this perspective as a “growth mindset.” Remember, anxiety is manageable and can change over time.

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Source: www.sciencefocus.com

Mastering Math: Proven Strategies for Accurate Guessing Techniques

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What’s inside the box?

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Imagine showing someone a box and asking them to guess its contents without any hints. This might seem impossible, yet the box’s nature offers crucial clues. For instance, its size implies the contents are smaller, and the material — metal versus cardboard — hints at what it can hold.

Is there a mathematical way to explain how to make educated guesses based on limited information? Indeed, while outcomes like coin flips or dice rolls are random and unpredictable, many scenarios allow us to optimize our guessing strategies using a few clever tools.

These constrained guesses are essentially estimates, a concept with deep historical roots. A remarkable early example comes from the ancient Greek philosopher Eratosthenes, who resided in Alexandria, Egypt, during the third century BC. Using basic principles, he estimated Earth’s circumference with astonishing accuracy. Though his precise method has been lost, subsequent writings enable us to reconstruct it.

Eratosthenes observed that during noon on the summer solstice, the sun was directly overhead in Syene, causing no shadow in the city’s well. Meanwhile, in Alexandria, a vertical pole cast a shadow of about 7 degrees, or approximately 1/50th of a circle. Knowing the distance between the two cities was 5000 stadia, he estimated Earth’s circumference to be 250,000 stadia.

While Eratosthenes made geometric approximations that can be overlooked, the real challenge lies in determining the length of a stadion — estimated to be around 160 meters. This approximation yields a circumference of approximately 40,000 kilometers, quite close to the modern measurement of 40,075 kilometers. Variations in stadion measurements, ranging from 150 to 210 meters, affect precision, depending on how we interpret Eratosthenes’ work.

Estimating Earth’s Circumference

Chronicle/Alamy

The key takeaway is that with simple yet logical calculations, we can deduce significant insights — all without a globe in hand. In the 20th century, physicist Enrico Fermi exemplified this art of estimation, playing a pivotal role in the Manhattan Project which led to the development of the atomic bomb. During the Trinity test, he ingeniously gauged the explosion’s power by dropping small pieces of paper and observing their movements. Though the specifics of his technique remain elusive, his initial estimate of a 10 kiloton bomb was intriguingly close to the accepted yield of 21 kilotons.

Fermi’s knack for educated guesses gave rise to the concept known as the “Fermi problem.” One classic illustration involves estimating the number of piano tuners in Chicago. Starting with a population of around 3 million, estimating the number of households and pianos leads to a rough conclusion of about 150 piano tuners based on several reasonable assumptions.

The crux of this estimation lies in understanding the limits of its imprecision. While we’ve made numerous assumptions during the process, the errors are likely to balance out. An estimate suggesting a million piano tuners would be almost certainly incorrect.

Fermi estimation serves as a valuable tool for generating initial hypotheses, but as we obtain more information, we can refine our guesses. Returning to the box analogy, if a blue ball with the number 32 is drawn from it, our assumption about the contents shifts. Acknowledging that multiple colored balls are likely, we can utilize the statistics pioneered by Thomas Bayes in the 18th century to quantify this uncertainty.

Portrait of Thomas Bayes

Public Domain

Bayes revolutionized probability by transforming it from a method for understanding randomness into a framework for addressing uncertainty. His Bayes’ theorem offers a way to quantify observations into evidence, comprised of four components: ex ante, evidence, likelihood, and ex post.

Prior values denote fundamental assumptions. Imagine serving three ice cream flavors (chocolate, strawberry, and vanilla) at a gathering. Initially, you might assume each flavor will be equally popular. However, if the first ten guests all choose chocolate, your initial assumption may need reevaluation.

Evaluating the likelihood of ten consecutive chocolate selections under equal preference assumptions reveals a probability of approximately 1 in 60,000—a strong indicator to revise your original beliefs. Such updates provide a more accurate understanding moving forward.

This theorem proves powerful. Referring back to the box example, drawing a colored ball like red ’50’ sharpens the possibilities of what remains inside. Each draw further narrows down our options based on new evidence.

One practical use of Bayes’ theorem appears in spam filters. Early versions used Bayesian inference to categorize a certain percentage of emails as spam (ex ante) and learned to recognize spam emails by examining user-marked emails (evidence) and the likelihood of certain words’ presence in those emails (likely).

This application illustrates how estimation matters in real-world scenarios, far beyond mere mathematics. Especially with modern AI technologies like ChatGPT, understanding and applying Fermi estimation and Bayesian inference techniques is increasingly vital. As observed, AI often seeks to confirm pre-existing information, thus neglecting new data for accurate assessments. Equip yourself with the skills to make informed guesses.

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Source: www.newscientist.com

Revolutionary Metal Extraction Techniques from Fungi on the International Space Station

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As human space exploration delves deeper into the cosmos, the urgency for sustainable methods to harvest local resources grows, rendering frequent resupply missions increasingly impractical. Asteroids, particularly those abundant in valuable metals like platinum group elements, have become key targets. Recently, scientists conducted a groundbreaking experiment aboard the International Space Station (ISS), utilizing bacteria and fungi to extract 44 elements from asteroid materials in microgravity.

NASA astronaut Michael Scott Hopkins conducts microgravity experiments on the International Space Station. Image credit: NASA.

In this innovative project, known as BioAsteroid, Professor Charles Cockell and his team at the University of Edinburgh utilized the bacterial species Sphingomonas desicabilis and the fungus Penicillium simplicissimum to explore which elements could be extracted from L-chondrite asteroid materials.

Understanding microbial interactions with rocks in microgravity is equally essential.

“This is likely the first experiment of its nature using a meteorite on the International Space Station,” states Dr. Rosa Santomartino, a researcher at Cornell University and the University of Edinburgh.

“Our aim was to customize our methodology while ensuring it remained broadly applicable for enhanced efficacy.”

“These two species behave uniquely and extract varied elements.”

“Given the limited knowledge on microbial behavior in space, we aimed to keep our results universally applicable.”

These microorganisms present promising solutions for resource extraction, as they generate carboxylic acids—carbon molecules that bind to minerals and promote their release through complex formation.

Nonetheless, many questions linger regarding this mechanism, leading researchers to conduct a metabolomic analysis. This analysis involved examining liquid cultures from completed experimental samples, focusing on the presence of biomolecules, particularly secondary metabolites.

NASA astronaut Michael Scott Hopkins conducted experiments aboard the ISS to examine microgravity’s effects, while researchers performed controlled experiments on Earth for comparative data.

Substantial data analysis yielded insights into 44 different elements, 18 of which were biologically derived.

Scanning electron microscopy (SEM) images of L-chondrite fragments under two gravity conditions. Image credit: Santomartino others., doi: 10.1038/s41526-026-00567-3.

“We drilled down to a single-element analysis and began to question whether extraction processes differ in space versus Earth,” notes Dr. Alessandro Stilpe from Cornell University and the University of Edinburgh.

“Do more elements get extracted in the presence of bacteria, fungi, or both?”

“Is this merely noise? Or do we observe coherent patterns? Differential outcomes were modest but intriguing.”

The analysis highlighted significant metabolic changes in microorganisms, particularly fungi, in space, leading to increased production of carboxylic acids and promoting the release of elements like palladium and platinum.

For several elements, abiotic leaching proved less effective in microgravity compared to Earth, while microorganisms demonstrated consistent extraction results across both environments.

“Microorganisms do not enhance extraction rates directly but maintain extraction levels regardless of gravity,” explains Dr. Santomartino.

“This finding is applicable to not just palladium but many metals, though not all.”

“Interestingly, extraction rates varied significantly by metal type, influenced by microbial and gravitational conditions.”

For detailed insights, refer to the results published in npj microgravity.

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R. Santomartino others. Microbial biomining from asteroid material on the International Space Station. npj microgravity published online on January 30, 2026. doi: 10.1038/s41526-026-00567-3

Source: www.sci.news

Here are three SEO-optimized title variations for your article: 1. “Discover 3 Unique Techniques to Calm Your Mind in the New Year” 2. “New Year, New You: 3 Unconventional Ways to Achieve Inner Peace” 3. “Explore 3 Surprising Methods to Calm Your Mind This New Year”

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Stress Management Tips

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If you’re considering running a marathon or starting an intense exercise program this January, why not opt for a simpler goal to enhance your well-being in 2026?

Setting an objective to calm your mind may not sound ambitious, but it offers significant health benefits. A growing body of research highlights the negative impact of stress on overall health, particularly on heart health. Techniques to achieve a calm state can elevate self-reported happiness, enhance emotional regulation, and improve sleep quality research suggests.

This calmness counteracts “allostatic load,” a term used by Sula Windgassen, a health psychologist and author of the upcoming book Everything is Inside Your Body. Chronic stress contributes to wear and tear on the body, overburdening key regulatory systems like metabolic, neuroendocrine, cardiovascular, and immune functions, which can eventually lead to disease.

When discussing stress relief, you’ve likely come across traditional advice such as exercise and deep breathing techniques. While these methods are scientifically validated, there’s emerging evidence pointing to additional calming strategies beyond a digital detox or time spent in nature.

Develop a Sense of Control

Research shows that enhancing your perception of control over stressors can aid in managing them. For example, in a study, participants who completed daily questionnaires about their stressors reported that feeling in control correlated with resolving stress more effectively.

“It’s not that the stressor goes away; rather, individuals feel empowered to address it, letting it go or resolving it,” says David M. Almeida from Pennsylvania State University, a key researcher in the study.

Achieving this sense of control involves small, manageable changes. “Feeling in control doesn’t imply you have everything figured out; it means being aware of factors you can influence during stressful situations.” This might look like deciding your response, determining when to engage, or finding a resolution path.

Interestingly, your age may influence how easily you feel in control. “Longitudinal studies indicate that while older adults may feel less control over work demands and family matters, they often maintain a strong sense of control in interpersonal conflicts,” Almeida explains. “This allows individuals to focus on what truly matters.”

Practice Self-Compassion

Research increasingly supports the idea that self-kindness can mitigate stress’s adverse effects on mental health, as indicated in a 2024 study. This research assessed self-compassion levels and participants rated statements such as, “I strive to understand and be patient with parts of my personality I dislike.” Researchers later investigated how these feelings affected coping mechanisms.

Data revealed that increased self-compassion fostered healthier coping strategies, enhancing psychological well-being while reducing anxiety, depression, and stress during a six-week study period.

Using Various Self-Care Techniques for Inner Calm

Drew Angerer/Getty Images

These findings support earlier research, which suggests that self-compassion can buffer against the harsh realities of stress. Psychologist Kristin Neff, a pioneer in self-compassion research, emphasizes three components: self-kindness, recognizing our shared humanity, and mindfulness, which allows us to separate ourselves from painful emotions.

Self-compassion works by reducing self-criticism and rumination, according to William Van Gordon, a Chartered Psychologist and Associate Professor of Contemplative Psychology at the University of Derby. However, he advises moderation to avoid self-obsession, which can lead to heightened stress levels.

A balanced approach includes practicing compassion for both yourself and others. Van Gordon recommends active listening when someone shares their struggles with you, making eye contact, putting away your phone, and fully engaging with them (“That sounds really challenging, I’m sorry to hear that.”). Additionally, loving-kindness meditation can be beneficial; spend 10-15 minutes daily sending well wishes to others using phrases like “May you be happy” and “May you be peaceful.”

Revamp Your Self-Care Practices

Self-care strategies play a significant role in stress management, as extensively documented in the literature. Recent studies indicate that integrating diverse self-care methods into your routine yields the best results. For instance, a study published in August explored how individuals coped with stresses during the coronavirus pandemic, analyzing participants’ journaling about their anxiety levels and the coping techniques employed.

I’ve discovered that a blend of strategies such as journaling, exercise, social interaction, and cognitive reframing—like focusing on the positive aspects of not receiving a promotion—has proven most effective.

“Different combinations of tools worked for different individuals on different days,” explains Ethan Cross, an experimental psychologist from the University of Michigan involved in the research. “Those adept at managing emotions benefited from having a wide array of emotional regulation strategies.”

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Source: www.newscientist.com

Superior to Standard Running Shoes for Swamp Trails: Expert Insights on Top Fitness Techniques and Gadgets

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The fitness technology scene is thriving like never before, offering numerous ways to monitor and analyze every run, ride, or workout session. From high-tech carbon-plated running shoes to innovative foam floats for the pool, the latest wave of fitness gear aims to help you break records, win races, and enhance your athletic performance.


Not all devices, wearables, or training tools align with your fitness goals, so it’s crucial to know where to invest your hard-earned money. To sift through marketing hype, I consulted various sports experts to pinpoint technologies that truly make a difference. Surprisingly, the most effective options aren’t always the latest or most expensive models—some are quite simple.

Top Fitness Technologies and Gadgets

Cycling

Photo: Photoschmidt/Getty Images

Jake Hales, Head Coach Ride Revolution

Pedals and Shoes

Transitioning to clipless pedals enhances your cycling by allowing more efficient circular movements instead of a rigid push-down motion. This also secures your feet in place for greater comfort during long rides, minimizing chain issues when dismounting.

For an accessible entry into clipless pedals, consider mountain bike pedals, which work on both sides, making entry and exit easier than road bike pedals that only clip in from one side. These pedals often come with simple, removable shoe cleats for easy walking.

Rock Rider Mountain Bike Shoes

£79.99 at Decathlon

Shimano Clipless Cycling Pedal

£27.99 at Halfords
£28.62 on Amazon

Turbo Trainer and Third-Party Training Software

For beginners, a turbo trainer can transform your bike into an effective indoor training tool. Advancements in technology have made these trainers more user-friendly. Hales notes, “The main advantage of a turbo trainer is environmental control, eliminating distractions from traffic or road conditions, allowing you to focus on your specific training sessions.”

Today, turbo trainers come equipped with engaging software like Zwift or Rouvy, making indoor training more exciting than ever before.

Zwift

Starting at £17.99 a month on Zwift

Running

Photo: Westend61/Getty Images

Doug Stewart, Head Coach TMR Coaching

GPS Watch

A GPS watch is invaluable for runners, offering the ability to record distance and speed while tracking progress. This functionality serves as great motivation.

Following a training plan becomes easier, guiding when to increase pace or slow down. The data collected allows for assessment of the runner’s efforts.

Choose a reliable running watch; the Apple Watch is sleek but may lack in data accuracy. The Garmin Forerunner series is known for its dependability.

Garmin Forerunner 165 Music

£249 at John Lewis
£289.99 on Garmin

Garmin Forerunner 570

£459.99 on Garmin
£459.99 at Runners

Carbon Running Shoes

Shoes featuring carbon plates enhance running efficiency. Research indicates that each step in these shoes requires less oxygen compared to traditional options, as they function like springs, providing significant propulsion.

Evidence shows they can benefit runners across skill levels, not just elite athletes (supported by both scientific findings and anecdotal evidence from marathon finish times).

It’s important to try various models for comfort. High-performing options include Nike AlphaFly and Vaporfly, ASICS METASPEED, and Saucony Endorphin Pro, with some models proving more durable than others. Generally, Nike models are rated for a lifespan of 100-200 miles, influenced by running conditions and individual forces.

The latest PUMA Fast-R Nitro Elite3 has also shown outstanding performance in recent studies, though it’s crucial to familiarize yourself with race-day shoes during training sessions to maintain their efficacy. Balance usage with other shoes to ensure they’re in top condition for race days.

Nike AlphaFly 3 (Boys)

£234.99 at Sports Direct
£284.99 at Nike

Nike Vaporfly 4 (Women)

£199.99 at Sports Direct
£239.99 at Nike

ASICS Metaspeed Edge Paris (Unisex)

Starting at £211 at StockX
£220 at ASICS

Saucony Endorphin Pro 4 (Boys)

£229.99 at Sports Shoes
£230 at Saucony

Puma Fast R Nitro Elite (Boys)

Runners require £160.89
£230 at Puma

Heart Rate Monitor

For those new to fitness, pace is all that matters at first. Yet as you aim for greater performance, understanding your heart rate becomes crucial in gauging your exertion. Many factors influence pace, including terrain and footwear.

It’s common for runners to overestimate their exertion level; knowing your heart rate can help you find the right training zones. This data can then inform your workouts, ensuring you’re not pushing too hard on easy days.

Although GPS watches have improved, they may still provide unreliable heart rate readings while running. Hence, a strap-based monitor can offer better accuracy. Arm-based monitors, such as those from Coros, can be particularly effective for women, as they can be less cumbersome than chest straps.

Coros Heart Rate Monitor

£68.99 at Sports Shoes
£69 on Amazon

Swimming

Photo: BalanceFormCreative/Getty Images

Film Murphy, Head Coach Total Tri Training

Pull Buoy

Most adults haven’t swum competitively from a young age. Using equipment like a pull buoy can help these “newer swimmers” achieve better body position and feel for the water.

A pull buoy is positioned between the thighs to elevate the body into a neutral position in the water, mitigating the need for kicking. Without it, many may find their hips sinking, making proper stroke initiation difficult.

Not all pull buoys are created equal; their size and buoyancy vary greatly. Many believe that using a pull buoy is akin to cheating, but in reality, it simplifies swimming. Without it, the struggle intensifies and can lead to fatigue, which is why less frequent swimmers may not cover much distance.

Toy Buoy 4

£17.99 at Sports Shoes

Smart Goggles

I tend to prefer traditional methods at the pool, but smart goggles have significantly improved swimming experiences. They automatically track your time and laps, eliminating the need to touch any buttons.

Additionally, these goggles can help analyze your body position in real time, providing feedback on head positioning and breathing, which can enhance swim performance.

Smart Swim Goggles

£299 at Selfridges

Tennis

Alex Johansson, @tennistechie

For years, tennis lagged in tech adoption, but this is changing with tools like SwingVision, which brings smart analytics to your device, offering real-time shot tracking, line calls, and match stats.

SwingVision provides a free tier for two hours of recorded analysis monthly, making it user-friendly and accessible without any permanent infrastructure.

SwingVision

From free on SwingVision

Strength Training

Photo: Skynesher/Getty Images

Andrew Julian, Personal Trainer, @ajsmadness

Gym Shoes

Running shoes propel you forward, but wearing them in the gym can hinder movement patterns. For example, during squats, executing the movement with your toes leads is crucial.

For functional training, Nike Free MetCon is highly recommended for its durability and adaptive exercise patterns. It promotes natural foot movement, providing stability during agility exercises and landings.

Nike Free MetCon 6 (Men)

£99.99 at Sports Direct
£119.99 at Nike

Nike Free MetCon 6 (Women)

£71.99 at Nike
£119.99 at ASOS

Lifting Belt

Hybrid training can often lead to muscle strain if you lift following a long run. It’s advisable to utilize a belt when lifting heavy to support your back and engage your glutes and hamstrings effectively.

Titan Longhorn Lever Belt

£164 at Pullum

Recovery

Photo: Andreypopov/Getty Images

Aileen McCann, PT and Sports Massage Therapist, @aileenmccann_moves

Massage Gun

While manual massages may be more effective, using a massage gun pre, during, or post-workout can have benefits. The rapid vibrations assist in tapping massage techniques to stimulate the nervous system and relieve tension in muscle groups.

Massage guns are excellent for targeting specific muscle areas but aren’t a substitute for comprehensive coverage. It’s difficult to treat areas like the traps effectively without help. However, they can be useful tools.

Theragun Mini Massage Gun

£199 at Therabody
£199 at Argos

Hyper Volt 2 Massage Gun

£199 at Hyperice
£199 on Amazon

Check out our guide on the best massage guns and essential Pilates kits for more insights.

Source: www.theguardian.com

Researchers Utilize Enhanced DNA Techniques to Classify Breast Cancer

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Triple-negative breast cancer (TNBC) is recognized as one of the more aggressive and challenging breast cancers to treat. Lacking the three standard hormonal markers associated with estrogen receptors, progesterone receptors, and HER2, this absence complicates the selection of effective treatment strategies for healthcare providers.

Researchers characterize TNBC as a collection of various diseases with distinct molecular characteristics that impact how the cancer manifests and its response to treatments. They utilize specific genes and gene products to categorize TNBC types. It is important to note that there are overlaps in the current classifications, which might be explained by the presence and levels of particular chemical molecules on the DNA. These molecules play a role in regulating whether genes are activated or deactivated in cells through processes known as DNA methylation.

In this study, researchers from Sweden explored how the distribution and patterns of DNA methylation delineate different forms of TNBC, influencing tumor behavior and interactions with the body’s immune system and its treatment responses. They analyzed 235 tumor samples from various patients in Sweden, ensuring that the data was refined to focus solely on cancerous cells rather than healthy tissue.

Employing a statistical technique known as Non-negative matrix factorization, they identified two primary categories of TNBC based on DNA methylation patterns: basal and nonbasal groups. This categorization aligns with previous classifications grounded in how cells interpret gene functions, termed gene expression. The basal group comprised tumors that were typically more active in immune responses and had a higher incidence of mutations linked to DNA repair issues, notably involving the common BRCA1 gene. Conversely, although the nonbasal group lacked hormone receptors, they exhibited increased activity in genes that influence hormonal responses.

Utilizing statistical assessments, the researchers subdivided each major group into smaller subtypes. Within the basal tumors, they identified three subgroups, referred to as basal1, basal2, and basal3, characterized by varying levels of immune cell activity and gene expression profiles. One specific subgroup, Basal3, demonstrated elevated expression of proteins that aid tumors in evading the immune system. The researchers found that specific DNA methylation patterns could activate or deactivate these proteins, indicating that patients with basal tumors might benefit from existing cancer treatments targeting this protein. The Basal2 subgroup expressed genes that inhibit immune activity, while the Basal1 subgroup displayed no significant immune-related behavior.

In the nonbasal category, researchers distinguished two subtypes: nonbasal1 and nonbasal2. Both of these subgroups were more prevalent among older patients and exhibited lower survival rates compared to the basal subgroup. The Nonbasal2 group encompassed tumors that influenced hormonal activity and responses to fatty treatments, whereas the Nonbasal1 group experienced more frequent disruptions in genes associated with tumor suppression.

Across all groups, researchers identified numerous genes whose methylation could modulate tumor growth and responses to the surrounding environment. To validate their findings in a broader context, they sourced independent tumor datasets from global databases and conducted similar classification analyses. They confirmed that the identified methylation subtypes appeared in other TNBC samples and correlated methylation patterns with tumor defense mechanisms, pinpointing strategies TNBC tumors may utilize to evade the immune system.

The researchers also acknowledged several limitations of their study. Their focus on DNA methylation represents just one of many chemical modifications that can influence TNBC behavior. Some of the independent datasets utilized originated from general breast cancer studies and were not exclusively focused on TNBC. Additionally, a significant portion of the data came from Western and Northern European populations, which may limit the applicability of the findings to individuals from other ethnicities. They emphasized the necessity for larger and more diverse datasets to gain a comprehensive understanding of TNBC subtypes.

In conclusion, the researchers posited that examining DNA methylation in patient samples could effectively categorize TNBC into meaningful subtypes, each with unique biological features, immune environments, and potential treatment responses. They recommended that future studies explore the origins of epigenetic modifications, such as DNA methylation, and how these alterations contribute to variations in TNBC subtypes.


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Source: sciworthy.com

Wood-based Adhesive with Standard Blending Techniques

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Glue guns generally employ harmful oil-based adhesives

Shutterstock/ekaterina43

A by-product from the wood industry has been innovatively transformed into safe, reusable hot glue adhesives that could serve as an alternative to hazardous solvent-based adhesives.

Ziwen LV of Beijing University of Forestry, along with a colleague, developed an adhesive from xylan, a component of plant cell walls.

“Xylan acts as a binding agent for cellulose, yet isn’t traditionally considered a ‘glue’ on its own,” stated Nick Aldred, who wasn’t part of the research team at the University of Essex, UK. “This initiative aims to reactivate it as a viable adhesive.”

The LV team chemically modified xylan to create dai-alcohol xylan, utilizing sodium acid and sodium borate in the process.

The resultant adhesive, when extruded from the hot glue gun, boasts a bond strength of 30 megapascals, surpassing that of traditional epoxy resin adhesives. Additionally, it can be reused by remelting, maintaining its adhesive properties even after 10 cycles.

The team also constructed plywood held together with xylan adhesive and found its performance comparable to that of phenol-formaldehyde resin adhesives.

However, there’s a significant limitation: after being submerged in water for one hour, the adhesive melts and the layers disintegrate. The researchers didn’t respond to requests for comment from New Scientist.

Jonathan Wilker from Purdue University, Indiana, highlights the pressing need for sustainable alternatives to the petroleum-based adhesives presently in use.

“[The] combined performance [of the new glue] was quite impressive, especially on wood substrates,” remarked Wilker.

“If we can implement this on a larger scale within the plywood industry, it could be revolutionary,” emphasized Aldred. “Plywood remains one of the last consumer products still containing materials like phenols and formaldehyde, substances that were banned years ago in products such as cosmetics.”

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Source: www.newscientist.com

Archaeologists Uncover Unusual Rectal Preservation Techniques Used on Mummies

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Recent archaeological findings indicate that well-preserved mummies were air-dried using long chips, twigs, cloth, and zinc chloride inserted into the rectum.

The 280-year-old remains belong to an Austrian priest and represent the first documented case of such an unusual but effective preservation method.

“The remarkably preserved mummy found in the Church District of St. Thomas am Brassenstein is that of Franz Zaber Sidler von Rosenage, a local pastor who passed away in 1746,” said Professor Andreas Nellich, a pathologist from Ludwig Maximilians University, Germany, involved in the Frontiers of Medicine study.

“Our investigation revealed that excellent preservation was achieved by packing the abdomen with wood chips, twigs, and dough, coupled with zinc chloride for internal desiccation.”

The mummy’s body walls were entirely unharmed, though more decay was evident on the head and legs. – Credit: Andreas Nellic

The upper body of the mummy remained largely intact, while significant collapse was observed in the head and lower body.

Nerlich, along with a global team of researchers, conducted thorough analyses, including computed tomography scans (using X-rays and computers to construct detailed body images), radiocarbon dating, and chemical assessments.

These studies confirmed Sidler’s identity, indicating he died between 1734 and 1780 at the age of 35-45.

Further discoveries of unique fabric tissues from materials found in the mummy’s abdominal cavity. Left: A piece of cotton with an intricate floral pattern. Right: A silk fabric fragment. – Credit: Andreas Nellic

In their efforts, scientists removed preservatives from Sidler’s body, uncovering that the abdominal and pelvic cavities were filled through the rectum with family and spruce chips, along with linen, hemp, and flax fabrics.

These materials were readily available in the small Austrian village where Sidler lived. Additionally, silk and embroidered linen were discovered within his remains, suggesting that the stuffing absorbed much of his abdominal fluids.

Toxicological examinations indicated that zinc chloride, a potent drying agent, was used to maintain the body’s condition.

Moreover, researchers found a small glass bead, likely lost within Sidler during the preservation process.

Left: The removal of some foreign materials from the dorsal abdominal wall revealed a mix of white fabric, plant matter, and brownish amorphous tissue residues. Right: A round object found in the left pelvis had a small hole with raised lips. – Credit: Andreas Nellic

Nerlich stated that the extent of rectal preservative use among mummies remains unknown, and other well-preserved bodies may have previously gone unreported.

The reasons behind Sidler’s preservation method remain unclear, though Nellich suggested:

“It’s possible the pastor was intended for transportation to his home monastery, but for reasons unknown, that plan may have failed.”

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Source: www.sciencefocus.com

Unveiling the Scientific Techniques for Baking the Ultimate Holiday Gingerbread

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It wouldn’t be Christmas without the smell of freshly baked gingerbread wafting through your home. A blend of warming spices and rich molasses, it’s a must-have snack on a winter’s day. And when I was a kid, it was always gingerbread that I fed Santa every Christmas Eve. In fact, gingerbread might be my favorite biscuit. It has the perfect balance of crunch and chewing power.

I’d like to think I know a thing or two about how to accomplish that. Participated in the 2023 series. Great British Bake Off He also received the notoriously difficult handshake from judge Paul Hollywood during Biscuit Week.

My success lies in the careful application of science to the art of baking. So let me share some key insights you need to bake gingerbread that will really turn heads, and the science behind why they’re so important. I’m a chemist by trade, so I eschew the traditional gingerbread house and instead assemble biscuits to create a stand-alone Christmas ‘chemistry’. Drool was already coming out of my mouth.

As with all biscuits, the first step is to prepare the dry ingredients. Flour, sugar, spices, and baking soda (see “Ingredients and Instructions” on the right) are required, and each has an important role to play. The flour acts as a binder and helps form the structure of the biscuit, while the sugar caramelizes to create sweetness, color, and texture.

Gingerbread’s flavor comes from a blend of spices, with ginger and cinnamon being the main ingredients.

Source: www.newscientist.com

New Insights into Paleolithic Fishing Techniques Revealed by Ancient Carved Shield from 15,800 Years Ago

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Scientists from the Leibniz Center for Archaeology and Durham University conducted a study on a collection of 406 carved schist tablets discovered at the Magdalenian site in Gennersdorf, Germany. These ancient carvings depict fishing techniques and tools used by Paleolithic people, showcasing nets with interlaced diamond and square mesh. This provides valuable insight into the transformation of their culture.

Placket 341 from the Magdalenian ruins of Gennersdorf, Germany. Image credit: Robitaille others., doi: 10.1371/journal.pone.0311302.

“Prehistoric fisheries introduced a variety of techniques and strategies for capturing fish. It can be summarized as active fishing, which requires active fishing, passive fishing with trapping methods, or a combination of both,” said Dr. Jérôme Robitaille of the Leibniz Center for Archaeology and colleagues.

“Some methods have been developed for individual fishing, such as fishing, while others have been improved to maximize yields using collective nets and traps.”

“The choice of a particular method was influenced not only by the fish species targeted, but also by the distinct habitats and topography in which particular aquatic resources thrive.”

“Evidence for fishing in the Upper Paleolithic (20,000 to 14,500 years ago) is not abundant, but there is direct and indirect evidence of several fishing methods, including barbed tips and harpoons, bows and arrows, traps, and fishing nets. exists sporadically.”

In their study, the authors analyzed carvings carved into 406 schist plaquettes from the Magdalena site in Gennersdorf, on the north bank of the Rhine River in central-western Germany.

These plaquettes feature a unique artistic style and iconographic theme depicting both terrestrial and aquatic animals and humans.

The new imaging technique allowed researchers to see intricate carvings on the fish, with grid patterns interpreted as depictions of fishing nets or traps.

This discovery suggests that fishing may have had symbolic meaning in the Upper Paleolithic.

These expand the known repertoire of Ice Age art and provide surprising insights into the symbolic and social practices of early hunter-gatherer societies.

“A comparative analysis including other sites from the same period, such as Altamira and Lascaux, highlights Gennersdorf’s contribution to the understanding of Paleolithic art and survival strategies,” the scientists concluded.

“Unlike famous locations known for their vivid depictions of fish, Gennersdorf’s abstract, minimalist style offers a fresh perspective on the sociocultural dynamics of the Magdalene community.”

“Net fishing, which originates from a wide range of economies, reveals the diversity, adaptability, and creativity of prehistoric communities, and their proficiency in utilizing a variety of fishing methods to sustainably exploit aquatic resources.”

“This research not only increases our understanding of the diverse survival strategies of Paleolithic societies, but also contributes to a broader discussion about the complexity and richness of their cultural practices.”

“By highlighting often overlooked aspects of fishing practices and the representation of those practices in art, our research adds to a more comprehensive and dynamic picture of Upper Paleolithic subsistence and contributes to the field. opens new avenues for future research in the field. “

“Clearly fishing plays a more important role in shaping social and cultural practices than hitherto recognized, as evidenced by population patterns around rich fishing grounds, and is therefore a subject worthy of further investigation.” It is.”

of study Published in an online journal PLoS ONE.

J. Robitaille others. 2024. Upper Paleolithic fishing techniques: Insights from carved plates from the Magdalenian site of Gennersdorf, Germany. PLoS ONE 19 (11): e0311302;doi: 10.1371/journal.pone.0311302

Source: www.sci.news

Astronomy techniques employed by scientists to uncover deepfakes

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According to a team of astronomers from the University of Hull, spotting a deepfake is as simple as looking for stars in the eyes. They propose that AI-generated fakes can be identified by examining human eyes in a similar manner to studying photos of galaxies. This means that if the reflections in a person’s eye match, then the image is likely of a real human. If not, it is likely a deepfake.

In this image, the person on the left (Scarlett Johansson) is real and the one on the right is generated by AI. Below their faces are painted eyeballs. The reflections in the eyeballs match in the real person but are inaccurate (from a physical standpoint) in the fake one. Image credit: Adejumoke Owolabi / CC BY 4.0.

“The eye reflections match up for real people but are incorrect (from a physics standpoint) for fake people,” said Prof Kevin Pimblett, from the University of Hull.

Professor Pimblett and his colleagues analysed the light reflections of the human eye in real and AI-generated images.

They then quantified the reflections using a method commonly used in astronomy to check for consistency between the reflections in the left and right eyes.

In fake images, the reflections in both eyes are often inconsistent, while in real images the reflections in both eyes are usually the same.

“To measure the shape of a galaxy we analyse whether it has a compact centre, whether it has symmetry and how smooth it is – we analyse the distribution of light,” Professor Pimblett said.

“We automatically detect the reflections and run their morphological features through CAS (density, asymmetry, smoothness) Gini Coefficient. This is to compare the similarities between the left and right eyeballs.”

“Our findings suggest that there are some differences between the two types of deepfakes.”

The Gini coefficient is typically used to measure how light in an image of a galaxy is distributed from pixel to pixel.

This measurement is done by ordering the pixels that make up an image of a galaxy in order of increasing flux, and comparing the result with what would be expected from a perfectly uniform flux distribution.

A Gini value of 0 is a galaxy whose light is evenly distributed across all pixels in the image, and a Gini value of 1 is a galaxy whose light is all concentrated in one pixel.

The astronomers also tested the CAS parameter, a tool originally developed by astronomers to measure the distribution of a galaxy’s light to determine its morphology, but found it to be useless for predicting false eyes.

“It’s important to note that this is not a silver bullet for detecting fake images,” Professor Pimblett said.

“There are false positives and false negatives, and it doesn’t detect everything.”

“But this method provides a foundation, a plan of attack, in the arms race to detect deepfakes.”

The researchers Their Work July 15 Royal Astronomical Society National Astronomy Meeting 2024 (NAM 2024) At the University of Hull.

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Kevin Pimblett othersDetecting deepfakes using astronomy techniques. 2024

Source: www.sci.news

Effective Recycling Techniques to Reduce Plastic Waste from Ending up in Landfills

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Andriy Onufriyenko/Getty Images

In 1980, Disney World in Orlando, Florida, began developing a new method of generating electricity for its theme parks that would reduce the use of increasingly expensive oil. The solid waste-to-energy conversion plant took garbage, including plastics, and converted it into flammable gas using a method called pyrolysis. It opened in 1982 but closed a year later due to high operating costs.

Today, environmentalists cite the Disney story that shatters the reputation of a series of new technologies collectively known as advanced recycling, which takes plastic waste and turns it back into brand new plastic.

Their argument is dishonest. The failure of the Disney plant had more to do with the subsequent drop in oil prices than with any technical or environmental issues. Pyrolysis has improved significantly since the 1980s. In any case, Disney’s factory is designed to produce fuel, not classified as advanced recycling.

Advanced recycling is rapidly innovating with the potential to help solve the global plastics crisis, as reported in our feature “A surprising new technology that could recycle all plastics forever.” It has the potential to capture millions of tonnes of waste plastic and turn it back into a clean, fresh state by breaking it down into its molecular components. The goal is a circular economy that eliminates the need to make “virgin” plastic from oil.

It’s not a panacea. These factories produce toxic waste, have problems with their energy use, and perpetuate traditional plastics ahead of newer, greener alternatives. Campaigners are right to argue that it would be better to do away with plastic altogether. However, given practical considerations, they are not going away anytime soon, and most advanced recycling technologies are better for the environment than their alternatives.

There should be serious discussion about advanced recycling, especially whether it should be incorporated into future global treaties on plastic pollution. Make sure it’s based on fact and not a Disney story.

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Source: www.newscientist.com

The mystery of Cretaceous shark hunting techniques revealed through detailed fossil analysis

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Petitcodus shark fossil discovered in Mexico

Roman Vullo

A fossil shark that thrived during the Cretaceous period has been found and has shed light on how sharks hunted and their place on the evolutionary tree.

Fossil shark teeth Ptychodus have been in museums for over 200 years. While some members of this group grew to be enormous, the anatomy of others was largely unknown.

This lack of information left researchers uncertain about the shark’s overall appearance and feeding habits, but the wide, flat teeth suggest it was capable of eating hard-shelled prey.

Recently, Professor Roman Vullo at the University of Rennes in France discovered six well-preserved full-body fossils of Ptychodus in Mexico, placing the shark in the order Lamniformes alongside modern shark species like great whites and basking sharks.

What makes this discovery interesting is that while modern white sharks are known for hunting in open waters, Ptychodus were fast swimmers and voracious eaters in the open ocean, preying on armored pelagic fish like large ammonites and sea turtles.

Despite the small size of the studied specimens, estimated to be less than 3 meters long, researchers believe some members of the genus reached lengths of about 9.7 meters – twice the size of a great white shark. Females tended to be larger, measuring between 4.6 and 4.9 meters in length.

During the Cretaceous period, Ptychodus sharks played a significant role in the marine food chain. They likely competed with large marine reptiles with crushing dentition, which may have led to their extinction before the end-Cretaceous extinction event.

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Source: www.newscientist.com

Utilizing Webb’s Advanced Optical Techniques to Unravel the Mysteries of the Ring Nebula

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New images captured by the James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) reveal intriguing details of the Ring Nebula. These images show approximately 10 concentric arcs located just beyond the outer edge of the main ring, suggesting the presence of a low-mass companion star orbiting the central star at a distance similar to that between Earth and Pluto. Researchers from the Royal Observatory of Belgium, Griet van de Steene and Peter van Hof, are part of the international team of astronomers who released these breathtaking images. In their research paper, they analyze these features and discuss their implications for the star’s evolution.

The Ring Nebula, located about 2,200 light-years from Earth in the constellation Lyra, is a well-known and visually striking planetary nebula. It displays a donut-shaped structure consisting of glowing gas, which was shed by a dying star as it reached the end of its lifecycle. The web’s NIRCam (near-infrared camera) and MIRI instruments have captured stunning footage of the nebula, providing scientists with an opportunity to study and understand its complex structure.

The recent images obtained by the James Webb Space Telescope’s NIRCam reveal intricate details of the filamentary structure of the inner ring of the Ring Nebula. This inner region contains about 20,000 dense spherules and is rich in hydrogen molecules. Additionally, the outer region of the nebula contains a thin ring with enhanced emission from carbon-based molecules known as polycyclic aromatic hydrocarbons (PAHs). These details were analyzed and described in a research paper by Griet van de Steene, Peter van Hof, and their team.

The Webb images also show peculiar spikes extending outward from the central star on the outside of the ring. These spikes, observed in the infrared but faint in the visible spectrum captured by the Hubble Space Telescope, may be caused by molecules forming in the shadow of the densest part of the ring, shielded from direct radiation from the hot central star.

Furthermore, the researchers discovered 10 concentric arcs in a faint halo outside the ring. These arcs indicate the possible presence of a companion star orbiting at a distance similar to that between our Sun and Pluto. The interaction between the central star and this companion star may have shaped the nebula into its distinctive elliptical form.

The detailed images captured by the Webb telescope provide valuable insights into the process of stellar evolution. By studying the Ring Nebula, scientists hope to gain a better understanding of the life cycles of stars and the elements they release into space. Griet van de Steene and Peter van Hof, along with their team of experts in planetary nebulae and related objects, are actively researching and analyzing the Ring Nebula using imaging and spectroscopy techniques.

Source: scitechdaily.com