What happened to the broom? Explain.

1. Putting up a broom stems from the challenge of putting up a broom. A popular saying on the Internet comes from a message "February 7th (it may be 8th, 9th, 10,1or other time) is a special day. NASA once said that the earth's gravity is the smallest on this day, so the broom can stand up. " Many people exclaimed after trying it: Really!

It is confirmed that there is no official news from NASA. The principle is that when the broom hair is split, the center of gravity is naturally close to the bottom, so it is not difficult to find a stable point. If the broom is new and the broom hair is straight and hard, it will be easier to support this center of gravity. Therefore, the so-called broom challenge is actually just a test of your ability and patience to find the center of gravity, which has nothing to do with NASA. Setting up a broom is just a beautiful lie.

The principle that brooms don't fall down is that the center of gravity of brooms is closer to broom hairs than the high point of brooms' handles. You can try to put the broom across your fingers, just like a seesaw, to test the center of gravity of the broom. So when you split the broom hair, the center of gravity is naturally close to the bottom, and it is not difficult to find a stable point.