However, a Whimhurst machine in the neighborhood does create a big change in the liquid. If you don’t have a Whimhurst machine, you can rub a balloon on your neighbor’s cat.

To do this, a nitrogen-powered cloud chamber was fitted inside the nose cone of these former missiles, sent aloft, and photographed every 25 seconds during flight. When [Markus] read about these ...

The cloud chamber detects secondary cosmic rays and radioactive decays by making alcohol clouds along the particle paths through the chamber. Particles ionize alcohol molecules as they pass through ...