More fun comics #106, cover by Henri Boltinoff
(via The Fabuleous Fifties)
Atomic cloud chamber, page 2 (here 1), unknown autors, from Superboy #18
A cloud chamber is a special device used in particle physics to detect cosmic rays using the ionizing radiation.
The target of the device is to detect trajectories of particle using the trace into the ionized fluid in chamber.
If you want, you can download a pdf from CERN in order to realize your personal cloud chamber!
Atomic cloud chamber, page 1, unknown autors, from Superboy #18
Superboy #18, cover by Winslow Mortimer
Superboy #2, cover by Guillem March
Legion of Superheroes 2 Variant. I am not going out of my way for this one. Nope.