Pumping with both air and water

[S2 Science and up: Water and Air Pressure]

There are a great many ways for water to transport from one place to another. One example, as you would be familiar with, is using a straw to drink up bubble tea by creating a negative pressure gradient in your mouth so the tasty liquid flows up the tube.

Today, however, we examine a version of the pump that

Air is a lot more compressible than water, which is why beyond a certain size this apparatus does not work as well. But beyond that, the pump is handy to have for occasions where you need to transport water from one point to another without electricity.