How to pour water into the straw by pressure

Block one end of the straw with your hand, draw the air out of the tube, and put the other end of the tube on another cup (inside). The position of the cup with water is higher than that without water. Is to use the atmospheric pressure difference to achieve the goal, with the help of pressure difference.

Physics:

Physics is a subject that studies the most common laws of motion and the basic structure of matter. Physics, as the leading discipline of natural science, studies the most basic motion forms and laws of all substances from the universe to elementary particles, so it has become the research basis of other natural science disciplines. Physics began in the era of Galileo and Newton, and now it has become a basic science with many branches. Physics is an experimental science, and it is also a science that advocates rationality and attaches importance to logical reasoning.

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