Xie Piluo gripped the question mark. He designed a plate container filled with water. Whenever the plug at the bottom of the dish is pulled out, the water in the dish will always form a counterclockwise vortex, which proves that it is not accidental but a regular phenomenon that the vortex turns left when the bath water is put in.
1962. Xie Piluo published a paper that water vortex is related to the earth's rotation. If the earth stopped turning, water wouldn't create a vortex. Because the earth has been rotating from west to east, and the United States is in the northern hemisphere, the bath water always rotates counterclockwise. Xie Piluo concluded that typhoons in the northern hemisphere also rotate counterclockwise. The reason is that the whirlpool of bath water is the same. male
After the publication of Xie Piluo's paper, it aroused great interest of scientists all over the world and carried out experiments in various places. It turns out that Xie Piluo's assertion is completely correct.
After the water in the bathtub is drained, it will form a counterclockwise vortex and flow out from the drain. In the 1940s, Xie Piluo, a scientist at the Massachusetts Institute of Technology, first noticed this phenomenon while taking a bath. After analyzing various reasons, he believes that this phenomenon is related to the rotation of the earth. He published a paper speculating that the vortex formed by water in the southern hemisphere should be clockwise, but there should be no vortex at the equator. Xie Piluo's speculation aroused the interest of scientists all over the world. They observed all over the earth and found that Xie Piluo's speculation was really good. Later, this phenomenon was named Xie Piluo phenomenon.
When an object is at low latitude, its linear velocity from west to east is relatively large as the earth rotates. When an object moves from low latitude to high latitude, it will still maintain the linear velocity at low latitude. This inertia deflects the object eastward. In the northern hemisphere, the linear velocity of the water in the north of the bathtub is larger than that in the south, which will form a vortex, and the inertia to the east will make the water form a left spiral, which is counterclockwise. The southern hemisphere is just the opposite.
Hurricanes and tornadoes rotate counterclockwise in the northern hemisphere and clockwise in the southern hemisphere, which is also a Xie Piluo phenomenon. Similarly, rivers flowing from south to north in the northern hemisphere are always eroded by water on the east coast.