This week, a small puff of cotton is inserted into the bottom of plastic tube. At the top of the chamber is plunger which seals the chamber and can be pushed downwards into the plastic tube.
To make the process more clear, below is a video of the action in when the plunger is pushed down very slowly.
Question: What would happen instead if the plunger were slammed down sharply instead?
More importantly: How will you be able to tell? For example, you might be able to feel the cotton warmer after compressing it, or perhaps it will feel cooler or become slightly damp due to condensation of the water vapor in the air inside the tube.
Click here for Answer #356 after November 9, 2009.
