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Gravity from entropy? A bold theory could link physics’ biggest gaps

For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth ...
The National Interest

What Exactly is Zero Gravity and How Does it Work?

In the zero-gravity airplanes or vomit comet, why does stuff behave like there is no gravity when it is just falling? – Austin B., 11, Scranton, Pennsylvania I have flown many times in zero-gravity ...