mass
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Physicists Measure Gravity of Smallest Mass Yet
Despite keeping us grounded and warping light that travels through space, gravity is actually quite a weak force. The smaller the mass, the less gravity appears to have any pull, until at quantum scales it appears to have no force at all. Now, physicists in England and Europe have measured a tiny—but apparent—gravitational pull on…
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Physicists Measure the Smallest Gravitational Field Ever Detected
Over the Christmas season of 2019, four physicists hovered over two minuscule gold orbs, each about the size of a ladybug, in a Vienna laboratory. It was silent, in all the ways you can imagine: audibly, seismically, even electromagnetically. It had to be, as the researchers were trying to detect the influence of one of…
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The Kilogram Is Putting On Weight
There’s long been debate over the accuracy of the standardised kilogram. Now, scientists have shown once and for all that the lump of metal defining the unit of mass has been putting on some weight.
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Your Kindle Gets Heavier As You Add Ebooks To It
Moustachioed UC Berkeley computer science professor John Kubiatowicz told the New York Times that your Kindle gets heavier when you add ebooks. Don’t worry, though, you won’t feel it with your hand, or with any scale that we’ve ever created.