AI News on Instagram: "Scientists ran the drop test inside the world’s largest vacuum chamber, removing the air so there was no drag at all. That way, the only force deciding what happens is gravity. They released a bowling ball and a set of feathers at the same time. Even though one is heavy and the other is almost weightless, they fell together and hit the ground at the exact same moment. It proves what Galileo said more than 400 years ago: without air resistance, objects fall at the same rate