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Lemurs can smell weakness in each other

Some people watch the competition carefully for the slightest signs of weakness. Lemurs, on the other hand, just give them a sniff. These primates from Madagascar can tell that a fellow lemur is weaker just by the natural scents they leave behind, finds a study on ring-tailed lemurs led by ...

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Air pollution contributes significantly to diabetes globally

New research links outdoor air pollution — even at levels deemed safe — to an increased risk of diabetes globally, according to a study from Washington University School of Medicine in St. Louis and the Veterans Affairs (VA) St. Louis Health Care System. The findings raise the possibility that reducing ...

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The Physics of a Spinning Spacecraft in *The Expanse*

The Expanse should just change their post credits for each episode to include a list of homework questions. Seriously—there are so many great things to explore in this hard science fiction show. In a recent episode, one of the large spaceships (the Navoo) rotates in order to create artificial gravity ...

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Rapid 3D analysis of rockfalls in Yosemite

Yosemite National Park contains some of the world’s most iconic landforms, including Half Dome, Yosemite Falls, and El Capitan. Although the cliffs of Yosemite Valley may appear static, rockfalls from these cliffs are common, with a rockfall occurring every four to five days on average. Rockfalls are key to shaping ...

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Computational model analysis reveals serotonin speeds learning

A new computational-model designed by researchers at UCL based on data from the Champalimaud Centre for the Unknown reveals that serotonin, one of the most widespread chemicals in the brain, can speed up learning. Serotonin is thought to mediate communications between neural cells and play an essential role in functional, ...

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New gibbon genus discovered in ancient Chinese tomb

Bones of an entirely new but already extinct genus of gibbon have been discovered in China, revealing the magnitude of human-caused extinction of primates, according to a study by UCL and ZSL (Zoological Society of London). The discovery was made by scientists while studying the contents of a burial chamber ...

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The Quest to Make Super-cold Quantum Blobs in Space

On a frigid day last January in northern Sweden, a German-led team of physicists loaded a curious machine onto an unmanned rocket. The payload, about as tall as a single-story apartment, was essentially a custom-made freezer—a vacuum chamber, with a small chip and lasers within, that could cool single atoms ...

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‘Stealth’ material hides hot objects from infrared eyes

Infrared cameras are the heat-sensing eyes that help drones find their targets even in the dead of night or through heavy fog. Hiding from such detectors could become much easier, thanks to a new cloaking material that renders objects — and people — practically invisible. “What we have shown is ...

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