Experiment of December 20, 2022:

The time to submit an answer is over. You can now view the solution of the experiment.

Solution video:

Experiment:

Question:

How does that work?

A) Hold the bottle with the opening facing upwards and blow on the bottom with a hot hairdryer.

B) Hold the bottle with the opening facing upwards and blow on the opening with a hot hairdryer.

C) Hold the bottle with the opening facing downwards and blow on the bottom with a hot hairdryer.

D) Hold the bottle with the opening facing downwards and blow on the opening with a hot hairdryer.