experiment

Man assembling electrical circuit with wires, alligator clips,…

CU of beaker full of black copper sulfate solution. Coins are plugged…

Shot of singer in band performing in ballroom. Medium close-up of…

A female scientist takes a white rat from a cylindrical chamber and…

A male scientist weighs a small sample, then puts the sample in a small…

The male scientist continues to experiment with different liquids. Text…

Text: "Tracing body sugars". A male scientist takes a black rat from…

The scientist with the rat fills and empties a syringe. Another male…

Audio is silent. Film starts with camera on a sign, reading "Radiation…

A patient with injuries to the sensory area of his brain participates…

Illustrates the Bell System's efforts to improve long distance…

Footage of a scientist in a room with lots of scientific equipment.…