EMF6.16A smart little girl👧🏼

EMF6.16A smart little girl👧🏼

2018-06-17    00'50''

主播: Vivian💗

210 6

介绍:
That’s Daniel Bernoulli - His principle explains how airplanes fly. It’s because of the shape of the wing. The wing is shaped so that the air flows faster over the top of the wing and slower underneath. It’s like the air has a little slide to go down. That’s Galileo - One of his discoveries was about motion. Something only has to be pushed or pulled if there’s a force slowing it down. So, if you had a ball on the ground, the ground would create friction and the air would create the drag. But if that same ball were up in space, it would keep going without having to be pushed or pulled. That’s Isaac Newton - Newton discovered the Law of Gravity. He even worked out a math version of his discovery to predict how the moon, comets and planets move.