This is the true story of a hammer, a feather, the Apollo 15 mission, and the answers to humanity’s oldest questions about how stuff falls.
the time. Maybe you’ve dropped a ball. Perhaps that cup of coffee slipped out of your hands. The mostly likely situation is that a cat decided to knock an object off a table—because that's what cats do.
Some of the earliest explanations for what happens when you drop things go all the way back to Aristotle , who was interested in explaining how the world works. Aristotle's answers were quite simple: If you let go of something, it will fall toward the ground. It will fall at a constant speed. If you drop two objects at the same time, the heavier one will move downward with a greater speed than the lighter one. That's it. And really, this seems like it could be true.
Well, even though this explanation makes sense, it is indeed wrong. Really, the only thing that is correct is that normally a rock will hit the ground before a feather. OK, but what about dropping a rock and feather—doesn't the rock hit first? Usually, the answer is yes. But let's replace the rock with a hammer and then just take a change of scenery and move the experiment to the moon. This is exactly what happened during the
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