If you time it just right, tossing a ball in the air as an elevator starts to move, the ball seems to hang in the air for a moment, like gravity had been canceled, says astrophysicist Adam Frank.
(Image credit: kostsov/Getty Images/iStockphoto)
If you time it just right, tossing a ball in the air as an elevator starts to move, the ball seems to hang in the air for a moment, like gravity had been canceled, says astrophysicist Adam Frank.
(Image credit: kostsov/Getty Images/iStockphoto)