Diffusing gas particles can behave in ways that defy fundamental physical laws
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The second law of thermodynamics states that heat always naturally flows from hotter to colder places. However, in very dilute gases, heat can flow in the opposite direction, from cold to hot. This discovery could reveal cracks in the fundamental laws of physics.
“Considering the second law, [of thermodynamics] has been known for 150 years, so you can imagine that if a counterexample exists…
Source: www.newscientist.com
