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Potential Discovery of the Lightest Black Hole Ever Seen: A Mysterious Object

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Artist's impression of a pulsar orbiting a black hole – one possible interpretation of the mysterious binary star system

Daniel Hutseller (artsource.nl)

Some 40,000 light-years away, a strange object could be either the heaviest neutron star or the lightest black hole ever seen, and it resides in a mysterious celestial void that astronomers have never directly observed. .

Neutron stars form when a star runs out of fuel and collapses due to gravity, creating a shock wave called a supernova and leaving behind an extremely dense core. Astrophysical calculations show that these nuclei must remain below a certain mass, about 2.2 times the mass of the Sun, or they will collapse further to form a black hole.

However, black holes have only been observed to have a mass more than five times that of the sun, leaving a gap in scale between neutron stars and black holes. Gravitational-wave observatories have observed several dense objects in this gap, but astronomers have never discovered them with conventional telescopes.

now, Ewan Barr Researchers at Germany's Max Planck Institute for Radio Astronomy discovered an object with 2.5 times the mass of the Sun by observing pulsars orbiting around it. A pulsar is a neutron star that emits pulses of light at regular millisecond intervals due to a strong magnetic field.

As predicted by Albert Einstein's theory of relativity, pulsars emit light with great regularity, but very large nearby objects can distort these rhythms. Dr. Barr and his team were able to calculate the mass of the pulsar's partner by observing the pulsar's pulses for more than a year using his MeerKAT radio telescope in South Africa.

“What we've discovered in this binary system appears to go beyond that [upper limit for neutron star mass]This suggests that there is some new physics going on here and that this is either a new type of star, or simply a black hole, the lightest stellar-mass black hole yet discovered. “There will be,” Barr said.

Pulsars are located in globular clusters, which are dense regions of stars and some rare objects that can pass close to each other. These unusual interactions could explain the mysterious object, Barr said.

If it's a black hole, researchers will be able to test theories of gravity that weren't possible before. “A pulsar is just a ridiculously accurate measuring device in orbit around a black hole, but it's not going anywhere. It's going to be around for the next billion years,” Barr says. “So this is an incredibly stable and natural test bed for investigating the physics of black holes.”

“If it's a neutron star, it would be more massive than any neutron star we've ever seen,” he says. Christine Dunn At Durham University, UK. “This actually tells us about the ultimate density that a star can support before it collapses under its own gravity and becomes a black hole. We need to understand the physics of matter at such extreme densities. I don't know what the limits are.”

Barr and his team plan to observe the pulsar with other telescopes over the next few years, looking for clues about what the object is. If it were a black hole, we would see the pulsar's orbit change over time, as the black hole dragged through spacetime around it, much like a ship dragging a small boat behind it. Or if it's a neutron star, more sensitive instruments might be able to detect the light.

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Source: www.newscientist.com

Oldest black hole detected by Webb

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NASA/ESA/CSA Astronomers using the James Webb Space Telescope have discovered a small, active galaxy within GN-z11, an extremely bright galaxy that existed just 420 million years after the Big Bang, more than 13 billion years ago. detected a black hole. The existence of this multi-million solar mass black hole in the early universe challenges current assumptions about how black holes form and grow.

GN-z11, shown in the inset, was 13.4 billion years ago, just 400 million years after the Big Bang. Image credits: NASA / ESA / P. Oesch, Yale University / G. Brammer, STScI / P. van Dokkum, Yale University / G. Illingworth, University of California, Santa Cruz.

Astronomers believe that supermassive black holes found at the centers of galaxies like the Milky Way have grown to their current size over billions of years.

But the size of this newly discovered black hole suggests that black holes may form in another way. That means black holes could be “born big,” or eat matter five times faster than previously thought.

According to the Standard Model, supermassive black holes form from the remains of dead stars, which can collapse to form black holes about 100 times the mass of the Sun.

If this newly detected black hole grows as expected, it will take about a billion years to grow to its observed size.

However, when this black hole was detected, the universe was less than 1 billion years old.

Dr Roberto Maiolino, an astronomer at the University of Cambridge, said: “Since the last time such a massive black hole has been observed was in the very early days of the universe, we need to consider other ways in which black holes could form.'' Ta.

“Very early galaxies were so rich in gas that they would have been a buffet for black holes.”

Like all black holes, GN-z11's young black hole is accreting matter from its host galaxy to fuel its growth.

But it turns out that this ancient black hole gulped down matter much more energetically than its later cousins.

GN-z11 is a compact galaxy, about 100 times smaller than the Milky Way, but a black hole may be having a negative impact on its development.

When a black hole consumes too much gas, it pushes it away like a super-fast wind.

This “wind” could stop the star formation process and slowly kill the galaxy, but it would also kill the black hole itself, because it would also cut off its source of “food.”

“This is a new era. The huge leap in sensitivity, especially in the infrared, is like upgrading from Galileo's telescope to a modern telescope overnight,” Dr. Maiorino said.

“Before Mr. Webb came online, I thought the universe beyond what the NASA/ESA Hubble Space Telescope could see might not be all that interesting.”

“But that wasn't the case at all. The universe is very generous with what it shows us, and this is just the beginning.”

“Webb's sensitivity means that even older black holes may be discovered in the coming months or years,” he added.

“We hope to use Webb's future observations to find smaller 'seeds' of black holes. We hope to find out the different ways in which black holes form – do they start out large? “It may help us understand the different ways black holes can form, such as whether they grow rapidly or whether they grow quickly.”

a paper The survey results were published in a magazine Nature.

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R. Maiolino other. A small, active black hole that existed in the early universe. Nature, published online on January 17, 2023. doi: 10.1038/s41586-024-07052-5

Source: www.sci.news

Detailed Image of Black Hole Unveiled in New Fiery Donut Visualization

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The image on the right is the latest and best image of a black hole.

EHT collaboration

Thanks to an update to the world’s first black hole image taken a year later, we now have the most detailed observation of a black hole to date.

In 2019, researchers released an image of the supermassive black hole known as M87*, located 55 million light-years away at the center of galaxy M87. The image, the world’s first glimpse of a black hole, was taken during the first observations in 2017 by a network of radio astronomical observatories around the world called the Event Horizon Telescope (EHT).

Now, the EHT collaboration has released tracking images of M87* taken during 2018 observations using additional telescopes in Greenland.

As the name suggests, these objects do not emit light, so the light in the image does not come out of the black hole. What we see instead is the silhouette of a black hole at the center of a mass of hot material, pulled inward by its powerful gravity.

“This image tells us that the black hole’s shadow is permanent and still exists,” says the EHT scientist. Eduardo Ross. “You can see that the ring is a beautiful circle. It’s very circular, not an oval or anything. We also see an enhancement on the south side in this ring, which is what we expected.”

This enhancement, visible as a slightly bright glow under the slightly displaced shadow of M87*, is due to the distortion of space-time associated with the black hole’s rotation (as explained by Albert Einstein’s theory of general relativity). This is due to

The additional telescopes have slightly increased the resolution of the images, greatly increasing the amount of data that can be cross-referenced with observations from other telescopes. However, less than ideal weather made viewing conditions difficult. This means the resolution is not as high as theoretically expected, Ross says.

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Source: www.newscientist.com

Researchers Develop Large Quantum Vortex to Replicate Black Hole Properties

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Researchers created tornado-like vortices in superfluid helium

Yoshigin/Shutterstock

Giant quantum vortices could allow researchers to study black holes. This vortex is a special form of liquid helium vortex that exhibits quantum effects. The result has some properties similar to a black hole and acts as a kind of simulator.

In the region around a black hole, the laws of gravity and quantum mechanics interact, producing effects that cannot be observed elsewhere in the universe. This makes these regions particularly important to study. “There are interesting physics happening around black holes, but many of them are out of our reach,” he says. Silke Weinfurtner at the University of Nottingham, UK. “Thus, we can use these quantum simulators to investigate phenomena that occur around black holes.”

To build the quantum simulator, Weinfurtner and his colleagues used superfluid helium, which flows at a very low viscosity, 500 times lower than water. Because it moves without friction, this form of helium exhibits unusual quantum effects and is known as a quantum fluid. The researchers filled a tank with helium with a rotating propeller at the bottom. As the propeller rotated, a tornado-like vortex was generated in the fluid.

“Similar vortices have been created in physical systems other than superfluid helium, but their strength is generally at least several orders of magnitude weaker,” he says. Patrick Svanchara, is also enrolled at the University of Nottingham and is part of the team. The strength and size of the vortex are critical to producing an interaction significant enough to observe between the vortex and the remaining fluid in the tank.

The vortices in this work were a few millimeters in diameter, much larger than other stable vortices created to date. quantum fluid In the past. In quantum liquids, rotation only occurs in tiny “packets” called quanta, which are essentially tiny vortices, so creating such large vortices is difficult. Many of them tend to become unstable when clustered, but the experimental setup here allows the researchers to combine about 40,000 rotating quanta to form what is called a giant quantum vortex. It's done.

“This is an experimental masterpiece,” he says Jeff Steinhauer He received his PhD from the Technion-Israel Institute of Technology, a pioneer in laboratory simulations of black holes. “They took a very well-established, old, classic technology called superfluid helium and did something really new with it, significantly increasing their technical capabilities compared to what had been done in the past. .”

The researchers observed how small waves in the fluid interacted with vortices. This process mimics the way the universe's cosmic field interacts with a rotating black hole. They discovered hints of a black hole phenomenon called ringdown mode. This phenomenon occurs after two black holes combine and the resulting single black hole is shaken by the residual energy of the combination.

Now that it has been established that this type of vortex exhibits behavior similar to that seen in black holes, researchers plan to use quantum vortices to study more elusive phenomena. “This is an excellent starting point for investigating some black hole physics processes, seeking new insights and potentially discovering hidden treasures along the way,” Weinfurtner says. .

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Source: www.newscientist.com

Scientists Suggest the Possibility of Creating Batteries from Tiny Black Holes

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small black hole battery

Following the feedback discussion on New Zealand’s Blackhole public toilets (25 November 2023), news has arrived of a plan called “Using black holes as secondary batteries and nuclear reactors” published in the magazine Physical Review D.

Successful engineers, much like unsuccessful engineers, are not easily intimidated by limitations that others believe are insurmountable. The plan’s authors, Zhan-Feng Mai and Run-Qiu Yang of Tianjin University in China, continue to keep their jaws high and scratch their heads.

They say, “The strong gravity of a black hole prevents classical matter from escaping from it, but fortunately energy can be extracted from a black hole through quantum or classical processes.” he wrote.

They wave away a series of problems that are said to plague anyone who even proposes to get close to a black hole. They state that their black hole is a “mini black hole”.

This kind of confidence inspires venture capitalists, a diverse group of people who are experiencing the golden age of the early 2020s. After raising capital and extracting a suitable portion from it, many people are looking for new big opportunities to invest some of it.

Black hole batteries could be their next big thing, following in the capricious footsteps of cryptocurrencies and artificial intelligence. Many investors are finding both to be as compellingly attractive as black holes.

2 story superpower

Alison Litherland tells the story of a boring superpower with useful duplicity.

she says: “When you mentioned Rosemary Fuhrman’s husband’s ability to read her two pages in different Braille at the same time (September 16, 2023), I was reminded of the small superpowers she had when her children were small. I remembered my abilities.

“I was able to read a bedtime story aloud to her while at the same time quietly reading a novel to herself. I don’t know how my brain was able to distinguish between the two stories, but… It certainly helped with the boredom of re-reading the same story before bed.”

confused coffee

This medical journal headline features a discussion of ambiguity. Coffee and heart failure: Additional potential beneficial effects of coffee”.

The title rests on a letter to the editor from Anna Vittoria Mattioli and Alberto Farinetti of the University of Modena-Reggio Emilia in Italy. The diary is Nutrition, metabolism and cardiovascular disease.

Mattioli and Farinetti explore some of the ambiguity in medical research and medical pronouncements regarding the positive and negative health effects of drinking coffee.

Some people drink espresso in some places, while others drink other forms of coffee. Some people drink coffee filtered, while others drink it unfiltered.

Some people drink coffee “in conjunction with a meal” in some places, while others drink coffee on its own. Some men are men and others are not, and there may be differences in “absorption of macronutrients and micronutrients and their bioavailability.”

Mattioli and Farinetti suggest further research is needed to “de-confound” under confusing headings.

edge on edge

Sam Edge is offended by the paper featured in a previous feedback column (November 4, 2023).New insights into the genetics of twins and southern hemisphere whorls”. Sam feels horrified by the attention the newspaper has received.

he says: “The old chestnut about drainage circulation rears its head again. I see. Given the very small volume and mass involved in hair, and the fact that people spend a significant amount of time moving around in non-vertical positions, it is absurd to suggest that the Coriolis force could be responsible for the swirling of hair. The Coriolis force is responsible for the surprising twist in how objects appear to move when they rotate Please remember that.

Feedback hopes Edge won’t get nervous knowing there’s a new version of the paper. The title this time is “Genetic determinism and hemispheric influence in whorl formation‘ Appears in ‘Journal of Stomatology, Oral and Maxillofacial Surgery.

The new version gives a meandering nod to the Coriolis question, this time at a distance. “Other non-hemispheric factors are [be] Maternal health, maternal nutrition, and prenatal hormone exposure were evaluated in samples from different locations in the Northern and Southern Hemispheres, before considering the potential influence of hemispheric environmental physical factors such as the Coriolis force. I did.”

Sheffield names the harvest

Susan Frank is second to none when it comes to sharing information about garden varieties.

She writes: “We wanted to include the names of two of our trustees associated with Sheffield Botanic Gardens Trust, Barbara Plant and Christine Rose.”

According to feedback, Sheffield Botanic Gardens Trust Website Trustee Miles Stevenson, who is neither a plant nor a rose, makes it clear (by displaying special information in parentheses) that it is a chair.

Mark Abrahams hosted the Ig Nobel Prize ceremony and co-founded the magazine Annals of Improbable Research. Previously, he was working on unusual uses of computers. his website is impossible.com
Have a story for feedback?
You can email your article to Feedback at feedback@newscientist.com. Please enter your home address. This week’s and past feedback can be found on our website.

Source: www.newscientist.com

Majority of large fishing vessels are not identified as ‘black vessels’ through tracking

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The vast majority of the world's industrial fishing vessels are not publicly tracked. Three-quarters of the world's large fishing vessels and one-quarter of transport and energy vessels are “dark vessels” that do not share their location publicly. The discovery comes from analyzing satellite imagery using artificial intelligence, an approach that could help better track human activities that impact the ocean.

“We had this idea that we were missing a large part of the activity that was happening in the ocean, but we didn't know how much we were missing,” he says. Fernando Paolo At Global Fishing Watch, a nonprofit organization based in Washington, DC. “And it turned out to be so much more than we had imagined.”

Paolo et al. used satellite images taken between 2017 and 2021 covering coastal areas where large-scale fishing and other industrial activities occur most often, revealing objects regardless of clouds or darkness. (including radar images that can be used). The researchers trained several AIs to detect and classify boats and marine structures in this dataset.

Researchers compared the ship's global map with a database of ships that publicly broadcast their locations and found that the vast majority did not have automatic identification systems turned on. Such identification is not always required, but if it is not used, it may indicate illegal fishing or other activity.

An AI learned to distinguish fishing boats from other types of boats based on their movement patterns and location. It found that 42 to 49 percent of approximately 63,000 ships fell into this category.

Other AI has identified 28,000 offshore structures related to wind power and oil production, with rapidly growing swarms of offshore wind turbines outnumbering oil infrastructure such as oil rigs. Although such activities other than offshore development and fishing boats are expanding, fishing activity is almost “at its limit,” he said. david kurzma At Global Fishing Watch.

“We have to plan for all non-fishing activities because we are encroaching on fishing grounds,” Krusma said. “The ocean is becoming increasingly crowded, so we need to consider how everything fits together.”

Publicly available satellite images do not have the resolution to detect small fishing boats less than 20 meters in length. Konstantin Kremer with microsoft Esther Rolfe at Harvard University Nature Articles commenting on research. But they said such efforts could improve monitoring of human activity near protected areas and unregulated parts of the ocean.

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Source: www.newscientist.com

Astrophysicist from Princeton solves the enigma of black hole jets and galactic ‘lightsabers’

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Princeton researchers have found that the M87* black hole emits energy outward, contributing to the formation of a giant jet. This discovery challenges traditional views about black holes and may be further tested with advanced telescopes. This new understanding opens up new avenues in comprehending black hole dynamics, though the source of the jet’s power is not definitively explained. This research was conducted with the support of the Princeton Gravity Initiative, a Taplin Fellowship, the National Science Foundation (grant 2307888), and a Simons Foundation Investigator Award.

The findings were published in the Astrophysical Journal on November 14, 2023. The research was spearheaded by Princeton astrophysicists including Andrew Chael, Alexandru Lupsasca, George N. Wong, and Eliot Quataert. With origins in Einstein’s theory of relativity, the researchers made intricate observations involving the black hole and its magnetic field to decipher the direction of energy flow. The researchers found that energy near the event horizon of black hole M87* is pushing outward rather than inward. They also verified the prediction that black holes lose rotational energy.

The researchers have concluded that while it is very likely that the black hole is powering the jet, it cannot be proven conclusively. Furthermore, the team has not conclusively shown that the black hole’s rotation “really powers the extragalactic jet.” Though the energy levels shown in their model were consistent with what a jet would require, they could not rule out the possibility that the jet could be powered by spinning plasma outside the black hole. Nevertheless, it is expected that the next generationEvent Horizon Telescope will further explore and confirm these findings.

The research team was also awarded the 2024 New Horizons Prize in Physics from the Breakthrough Prize Foundation for their black hole research. The research was also supported by a Taplin Fellowship, the National Science Foundation, a Simons Foundation Investigator Award as well as by the Princeton Gravity Initiative.

Source: scitechdaily.com

Black Holes’ Eating Habits: A Surprising Revelation

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An imaginary diagram of the interstellar medium distribution of active galactic nuclei based on current observation results. Dense molecular gas from the galaxy flows along the disk’s surface toward the black hole. The energy generated by the high temperature of the material accumulated around the black hole destroys molecular gas, converting it into atoms and plasma. Most of these multiphase interstellar mediums are jets flowing outward from the galactic center (mainly plasma jets occur directly above the disk, and mainly atomic and molecular jets occur at an angle). However, it turns out that most of the particles flow back into the disk like a fountain. Credit: ALMA (ESO/National Astronomical Observatory of Japan/Nuclear Astronomical Observatory), T. Izumi et al.

Recent advances in astrophysics have led to groundbreaking observations of gas flows around supermassive black holes. These observations were made with great detail. light years Important insights into the behavior of these giant universes have been revealed. Remarkably, the researchers found that while large amounts of gas are attracted to these black holes, only a small portion (about 3 percent) is actually consumed. The remaining gas is ejected and recycled back to the host galaxy.

Not all substances fall into this. Black Hole It is absorbed, but some is excreted as effluent. However, it has been difficult to measure the ratio between the amount of material that a black hole “eats” and the amount that it “falls into.”

An international research team led by Assistant Professor Takuma Izumi of the National Astronomical Observatory of Japan is developing the Atacama Large Millimeter/Submillimeter Array (alma telescope) Observe a supermassive black hole in the Circus Galaxy, 14 million light-years away in the direction of the constellation Circus. This black hole is known to be actively feeding.

The center of the Silcinus galaxy observed with ALMA. Carbon monoxide (CO; indicating the presence of a medium-density molecular gas) is shown in red. Atomic carbon (C; indicates the presence of an atomic gas) in blue. Green is hydrogen cyanide (HCN; indicating the presence of a dense molecular gas). Pink hydrogen recombination line (H36α; indicating the presence of ionized gas). The central dense disk of gas (green) is about 6 light-years wide. The plasma outflow proceeds almost perpendicular to the disk. Credit: ALMA (ESO/National Astronomical Observatory of Japan/Nuclear Astronomical Observatory), T. Izumi et al.

ALMA’s role in solving the mystery of black holes

Thanks to ALMA’s high resolution, the research team was able to measure the inflow and outflow around a black hole for the first time on a scale of several light years. By measuring the flow of gases in different states (molecules, atoms, and states), plasma) The team was able to determine the overall feeding efficiency of the black hole and found it to be only about 3%. The researchers also confirmed that gravitational instability is driving the influx.

The analysis also showed that most of the ejected outflow was not fast enough to escape from the galaxy and be lost. They are recycled into the perinuclear region around the black hole and begin falling slowly towards the black hole again.

Reference: “Feeding and feedback of supermassive black holes are observed at subparsec scale” Takuma Izumi, Keiichi Wada, Masatoshi Imanishi, Koichiro Nakanishi, Kotaro Kono, Yuki Kudo, Daiki Kawamuro, Shunsuke Baba, Naoki Matsumoto , Yutaka Fujita, Conrad R.W. Tristram, 2 November 2023 science.
DOI: 10.1126/science.adf0569

This research was funded by the National Astronomical Observatory of Japan and the Japan Society for the Promotion of Science.

Source: scitechdaily.com

Black British entrepreneurs face challenges but remain resilient

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Black founders in the UK are also seeing the effects of winter on their ventures.

According to one study, black founders in the UK have raised just 0.95% of all venture funding allocated in the country so far this year (or just $165 million out of about $17.3 billion). new report Written by Extend Ventures. 2023 would then be a year in the making, compared to 2022, when such founders raised 1.02% of all domestic venture investments ($316 million out of $30.88 billion), and 2022, when such founders raised 1.13% ($40 billion) of all domestic venture investments. This will be later than in 2021, when $454 million of the $30 million was allocated.

There has been a clear and consistent decline since 2020, when George Floyd was murdered, and global support and pressure to support Black communities has increased. The downward trend in the proportion of investments allocated to black founders is likely due to the venture recession of the past two years.

George Windsor, a data and research strategist who worked on the report, said black people make up 2.5% of the UK population and being properly represented in the venture ecosystem means they receive at least 2.5% of funding. will go to black-led businesses, he said.

Still, the achievement rate is 0.95% compared to 10 years ago, showing that progress is being made.

For example, just 0.28% of black UK founders raised venture funding in 2019, 0.23% in 2018 and 0.38% in 2017. According to Extend Ventures, between 2009 and 2019, only 38 Black founders were able to raise venture funding. In Japan. That number is now 80.

Even black women are doing better. Between 2009 and 2019, Extend discovered only the following: One Black women have raised more than $1 million in venture funding. Between 2019 and 2023, eight women did so.

Windsor said this progress is due to a myriad of factors, including “the growing awareness of racism, discrimination and inequality sparked by the Black Lives Matter movement and the killing of George Floyd.”

Extend co-founder Tom Adeyoola told TechCrunch that it also helps that there is less backlash against diversity, equity and inclusion efforts in the UK compared to the US.

“The UK values ​​slow and steady reform, rather than consequential, hollow, haphazard action. The desire for change here is deep-rooted and focused on systemic action. ” he said. “That said, if you look for anti-DEI rhetoric, you can find it in discussions and newspaper headlines about removing these roles from the civil service. I don’t know if it’s getting the public’s attention as we continue to highlight how much loss of growth is hurting the economy due to bias.”

The Extend report also found that although women of color still face challenges entering the industry, there has been a 100% increase in the rate of people from minority backgrounds becoming investors. It was also revealed that

Earlier this year, the UK Treasury Select Committee acknowledged the lack of investment in minorities and women in technology and looked at ways to increase investment.

Maintaining this momentum will require new initiatives and strengthening of existing ones, Adeyola said. “The data shows that it is very important to track cohorts and understand which companies receive funding beyond the early stages,” he said. “We need to make sure that appropriate measures are in place at the level of following companies.”

Source: techcrunch.com

Transforming Autobiographies into Interactive Black History Lessons with GenAI

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We often talk about the negative aspects of AI, but what about the positive aspects, such as being able to interact with authors and historical figures based on feeding their writing into large-scale language models? james lowry He may not be a household name, but his history is part of the black experience in America. Lowry grew up in Chicago, spent time in the Peace Corps in the early 1960s, and was the first black person hired as a consultant at McKinsey in 1968.

He has dedicated his life to getting major companies to invest in historically underrepresented communities. He has recently published books such as: change agent. Looking at his life. His partner at Upfront Ventures, General Kobie Fuller, is turning to a customized approach to generative AI (which he calls his Kobie AI) as a way to reimagine blog posts as an interactive medium. It is working.

He has experimented with several themes, from bartending to emotions in marketing. The latest one is Jim Lowry AI for DEI. He fed Lowry’s book into a large-scale language model to allow users to ask questions about diversity, equity, and inclusion. The results were impressive. Fuller says he has the privilege of speaking with Fuller whenever he wants, and that this technology uniquely gives others that ability.

“This book is amazing. It basically presents the book in this interactive format where you can explore all the greatness of the gym,” Fuller told TechCrunch.

Lowry says he wrote the book as a way to educate people about his experiences in the world, but not everyone will read the book, and it’s important to note that AI will allow people to share their experiences in the world. He also recognizes that it gives him an opportunity to understand the department. In his life, you don’t have to read 300 pages, just ask a question.

American business consultant James Rowley became the first black consultant at McKinsey in 1968.

james lowry Image credits: boston consulting group

“I thought this would be powerful in terms of sharing the insights and wisdom that I’ve accumulated over the years with a lot of people. Even if people buy a book, they don’t necessarily read the entire book. No. What I would say is, I think using AI in this way is another part of this effort that is very powerful,” Rowley said.

This AI starts with a prompt asking the user to get started.

I have dedicated my life to working in DEI, and I understand that this story is very sensitive for many people. If you have any questions, we’re here. I also get to share some wisdom from my life’s journey. what’s on your mind?

Then you ask questions, and the answers you get are surprisingly sophisticated, perhaps because they’re based on what Laurie actually says and does. Students, historians, DEI experts, or anyone interested can ask questions about DEI issues and get detailed answers. You can also ask about specific experiences in Lowry’s life, such as meeting Senator Robert F. Kennedy while serving in the Peace Corps. -1960s.

This gives people the opportunity to interact with Lowery through his work, which will remain his legacy and pass on to future generations as an educational tool to understand his experiences as a Black man working in American business. It will be given to you.

While Fuller is researching this technology, he’s excited about the power of generative AI and how it can help people make sense of other people’s experiences, and perhaps even help others. It shows how it can be used to serve as a vehicle for interacting with important experiences. Historical figure.

Source: techcrunch.com

Eastern China’s Rare Black Hedgehog Becomes a New Science Enthusiast

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This new species of hedgehog has darker brown fur, spines, and slightly larger ears than the European hedgehog.

Zookey

Scientists have identified a new species of hedgehog. It is a dark brown creature that lives in the forests of eastern China.

In 2018, Kai He Researchers from Guangzhou University in China encountered strange-looking hedgehogs in Anhui and Zhejiang provinces. Compared to the European hedgehog (Erinaceus europaeus), these had dark brown fur and spines, and slightly larger ears.

After analyzing seven animals, including DNA samples, the researchers concluded that they belonged to a species that had not previously been described scientifically, which they named the species. Mesechinus orientalis.

The other four known species are mesechinus This genus is mainly found in northern China, Mongolia, and Russia, but this species M. Hugi I live in southwestern China.

“It is very interesting that this forest hedgehog was found more than 1000 kilometers from its known range,” he says.

They weigh just under 340 grams and have an average length of 18.8 centimeters. M. orientalis It is slightly smaller than other known hedgehogs of its genus.

Like other hedgehogs, M. orientalis They are nocturnal and tend to feed on insects and fruits. They also hibernate in the winter.

So far, the team has discovered M. orientalis In two provinces of China. However, based on the numbers recorded so far, they are not considered endangered, He said, estimating there are probably a few hundred individuals in these states. are doing.

There were only 17 known species of hedgehogs in the world, so “we were really happy to add one more species,” he says.

“For a real hedgehog geek like me, this is amazing news,” he says. Sophie Rand Rasmussen at Oxford University. “We look forward to learning more about the ecology of this species and whether this is different compared to other hedgehog species in the country.”

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Source: www.newscientist.com

Uber Brings London’s Iconic Black Taxis to its Ridesharing Service

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Uber has scored another victory against the struggling taxi industry. London passengers will soon be able to hail one of the city’s iconic black taxis.

Taxi drivers in London can now start signing up for Uber’s travel referrals, but the service won’t be rolled out until early 2024. Uber says some drivers have already begun to express interest in being featured on the app.

Uber has been steadily signing deals with taxi fleet owners to bring the traditional taxi industry into its app. The ride-hailing giant recently signed deals with taxi fleets in Los Angeles, New York City, Paris, and Rome to list their drivers on the app. Uber says taxi drivers now make more than 10% of Uber rides in Europe and the Middle East.

Whether London’s black taxi drivers will sign up for Uber in droves is another story.

Steve McNamara, a spokesperson for the Licensed Taxi Drivers Association, an industry group representing 10,000 drivers, said in a statement that the group is “partnering with London’s iconic and world-famous black taxi industry. “I had no interest in tarnishing its name.” Uber, its poor safety record, and everything else that comes with it.”

McNamara also said he wasn’t aware of drivers signing up for Uber and didn’t expect Uber to catch on, given Uber’s reputation for safety and worker rights. He said the group was not consulted before Uber’s announcement.

With London’s black cabs, you don’t necessarily have to hail an Uber on-demand via an app. Taxis are available through other apps such as Gett, Taxiapp, FreeNow, and ComCab. So Uber is trying to enter the market with other services as well.

In order to gain more market share and increase the stability of the app, Uber is making available additional transport bookings on its UK app, such as intercity trains, Eurostar, National Express, car rentals, and even airline tickets. I did it like this.

Uber’s Black Taxi Drivers receive regular taxi rides at upfront rates You can choose to accept or decline travel destinations. All new drivers benefit from 0% commission for their first 6 months. This can quickly increase sign-ups before commissions are raised to their normal range (around 20%-30%).

Source: techcrunch.com

Newly Discovered Black Hole Found in New Zealand Restroom

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black hole butt

Roger Sharp added another item to his summary of feedback about black holes that can be found on surface maps of our planet (October 7).visitors to Nelson’s Mai Tai Esplanade ReserveNew Zealanders may feel relieved after entering a Blackhole public toilet.

Feedback points out that installing a toilet in an astrophysical black hole would eliminate the need for some expensive parts of modern waste treatment facilities, particularly sewage piping systems and septic tanks.

insert a needle into the patient

How far is it okay to insert a needle a little too deeply into someone’s abdomen? 365 surgeons from 58 European countries gave their opinion on this topic. Their thoughts, desires, and perhaps even dreams are distilled into a study called “.Relevance of Veres needle overshoot reductionBy researchers from the Netherlands and Malta.

These are the needles used to inflate the patient before performing the internal looking and subsequent cutting and manipulation tasks that are the highlight of most laparoscopic surgeries. A special type of needle called a Veres needle has long been the standard device for puncturing and injecting air into people who enter a shop for repairs. This performs much the same function as a simple type of needle used to inflate a soccer ball.

This study investigates the desire and need for a new and better Veress needle design.

The researchers said that surgeons “felt it was important to have a firm grip on the needle shaft, as most respondents held the needle rather than the grip.” The reason is that some surgeons try to stabilize their hands by touching the abdominal wall with their fingers during insertion, and the grip is too far from the abdominal wall. The data also shows that the maximum overshoot should be limited to 0 to 10 mm. ”

Almost every professional activity has a specific tolerance for error. Publication of this paper will make the public more aware of professionals’ general tolerance for overinsertion of injection needles in laparoscopic surgery patients.

goaf gangue

Unfamiliar scientific terminology can be fun, especially when the words are mined from depths that are unfamiliar to most people.

The same goes for gangue and goaf. He came across the feedback while reading a report by Zhanshan Shi of China’s Liaoning University of Technology and colleagues.Simulation test study on filling flow law of gangue slurry in goaf”.

Goaf is the waste that accumulates during mining. Gangue is a seemingly worthless portion of ore extracted from a mine. Goaf necessarily has gangue.

There are also mysteries. The report states that “there is little research on flow rules for gangue slurries in the Goahu sedimentary rock mass.”

This report is a reminder that there is always something yet to be unearthed, even if it is just information.

wooden board

In the vast forest of nominative determinism of people whose names are hilarious and almost eerily related to work, a few trees, namely the names of some people, are particularly suited to the purpose. One is Marlin E. Plank, who served as a forest products research technician at his Pacific Northwest Research Station in Portland, Oregon. He spent much of his professional life estimating how much commercially useful wood could be obtained from certain types of trees.

Stewart Harrison told Feedback of his joy upon discovering Planck’s 1982 paper.Harvesting wood from ponderosa pines in western Montana”.

A trip through the library found more plankitudes, including a plank on a log.Estimating the volume of small-diameter logs of ponderosa pine and lodgepole pine”.

Planck’s most sophisticated log paper may be the one he co-authored with Floyd Johnson in 1975 called .Empirical log rules for Douglas fir in western Oregon and western Washington”. This describes a better way, a low-key and practical way to estimate how much wood you will get if a tree is plank-harvested.

Plank and Johnson said: “The traditional procedure for estimating timber aggregates is based on theoretical log rules, defect deductions, and overrun factors. This procedure is indirect, subjective, and complex. It is also clearly inaccurate. Theory A better procedure is described that is based on actual wood recovery rather than the wood recovery above.”

Planck passed away in 2014. The Planck memorial website says:To plant a tree in your memory, visit the Sympathy Store.”.

Blindfold measures

Greg Rubin squints at a fellow computer security expert who warns that information on a video screen can be extracted from the reflections of video chatters’ glasses (October 28).

he says: “This is what my community has.” is known about For many years. I also sometimes comment on the reflections I see during video calls. Personally, I recommend using simple defense strategies for long and boring conference calls. Close your eyes and take a nap. ”

Mark Abrahams hosted the Ig Nobel Prize ceremony and co-founded the magazine Annals of Improbable Research. Previously, he was working on unusual uses of computers.his website is impossible.com.

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Source: www.newscientist.com