虹吸管是人类的一种古老发明，早在公元前1世，就有人造出了一种奇特的虹吸

The siphon is an ancient invention of mankind. As early as the first BC, a strange siphon was created. <br>In fact, the siphon effect is not entirely caused by atmospheric pressure, and it can also produce a siphon phenomenon in a vacuum. The force that causes the liquid to rise is the cohesion of molecules between the liquids. When the siphon phenomenon occurs, the liquid flowing out of the tube is more than the liquid flowing into the tube, and the gravity on both sides is unbalanced, so the liquid will continue to flow in one direction. As the liquid flows into the tube, the higher the pressure, the lower the pressure.

Siphons are an ancient invention of mankind, as early as the first century BC, there is a strange siphon.<br>In fact, siphoning is not entirely caused by atmospheric pressure, and siphoning can also occur in a vacuum. The force that causes the liquid to rise is the cohesion of the molecules between the liquids. In the event of siphoning, the liquid continues to flow in one direction because there is more fluid flowing out of the tube than in the tube, and the gravity on both sides is not balanced. As the liquid flows into the tube, the lower the upward pressure.

Siphon is an ancient invention of human beings. As early as the 1st century BC, a kind of peculiar siphon was made by man.<br>In fact, siphonage is not entirely caused by atmospheric pressure, and it can also occur in vacuum. The force that causes the liquid to rise is the cohesion of the molecules between the liquids. In case of siphonage, since there is more liquid flowing out of the pipe than into the pipe, the gravity on both sides is unbalanced, so the liquid will continue to flow in one direction. The higher the liquid goes into the pipe, the lower the pressure.