cloud chamber
Wilson cloud chamber

For the past two years I have tried to help my students build cloud chambers.

They did so, and found themselves in an empty cloud chamber.

He nodded to the cloud chamber blocking the media wall.

Anderson therefore placed a lead bar across the middle of the cloud chamber.

This added another way to use cloud chambers to measure the properties of elementary particles.

Delta rays appear as branches in the main track of a cloud chamber.

He pursued the application of this discovery and perfected the first cloud chamber in 1911.

Pullman compares the movement of these objects to particles in a cloud chamber.

It's all good dirty fun, with more rebounds and ricochets than there are in a cloud chamber.

The words were trails in a cloud chamber.