helium

A Heroic Effort to Measure Helium

发表于 2021-02-06 heroic helium adchoices

After an intense game of cat and mouse with different particles, atomic physicists have measured the radius of the helium nucleus five times more precisely than…

Bats on Helium Reveal an Innate Sense of the Speed of Sound

发表于 2021-05-28 innate helium reveal

A new experiment shows that bats are born with a fixed reference for the speed of sound—and living in lighter air can throw it off. Learn more about your ad cho…

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