The Magic Tube

Procure a small tube of glass, whose canal is extremely narrow, and

open at both ends; let one end of it be plunged in water, and the

water within the tube will rise to a considerable height above the

external surface: or if two or more tubes be immersed in the same

fluid, the one with a narrow canal, and the other wider, the water

will ascend higher in the former than the latter.

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