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Title: Water Seeking Level

Description: Despite moving the ends of the tube up and down, the water columns inside the tube remain at the same height. Since both open ends of the tube experience the same atmospheric pressure, the change in height of the tubing does not affect the height of the water columns. If we put our thumb over the end of the tubing, the volume of air trapped there remains constant. If we raise and lower that log of the tube, the pressure will change and the water levels will move up and down.

Credits: Reimi Yonekura, Rich Wlezien, Erich Tisch, NSF

References:

Web Page:

Contributed By: Erich Tisch

 
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