Answer:
Did you notice the only time the water poured out of the bottle was when you weren’t covering the hole on the top? Isn’t that strange? There’s a hole there, why doesn’t the water come out? Shouldn’t gravity be pulling it down? There are different forces involved besides gravity. Air pressure is a strong force and it always acts in a certain way: High Pressure moves towards Low Pressure.
Explanation:
This basically means “more air” moves to “less air.” It is how wings cause flight, how spray paint cans works, how a plunger works, and much more! If there is a “vacuum” (a place with no air or less air than normal) then air will rush in to fill that void. So where does that happen in the Drip Drop Bottle?
