"This vintage toy ad is for the Gilbert Nuclear Physics Atomic Energy
Lab. I am kind of curious about how this actually worked, or IF it
worked. And what exactly is the "cloud chamber?" And, just how safe was
this toy? This image has been made into a magnet for your fridge, or
other magnetically receptive surface.
All of my magnets are created using archival quality paper and inks, and intended for indoor use.
Most of my magnets will measure about 2.5 x 3.5 inches.
of my fun fridge magnets are fully backed by flexible magnetic material
and then covered with laminate material for protection and long life.