water lenses for educational experiments in physics, man came and take one
1950s: Hand touches wire to bell jar lid. Hand lifts and lowers metal plates into tray of salt water cups. Hand points to perimeter of tray.
1950s: Man at laboratory table places thermometer in glass flask. Top of glass flask: thermometer, spout, and stick with turbine wheel. Bunsen burner heats flask. Thermometer reaches 100 Celsius.
Interactive exposition in technology museum. Animation wooden machine spins, shows cartoon - man runs. Science, physics and experiment concept
1950s: UNITED STATES: teacher talks with student. Man demonstrates physics experiment. Boy picks up hammer
1950s: Bunsen burner boils water, steam spins turbine, sign reads "HEAT ENERGY". Batteries power motor, sign reads "ELECTIRCAL ENERGY". Man demonstrates Geiger counter, sign reads "NUCLEAR ENERGY".
1950s: Glass flask of boiling water on flame. Steam escapes spout at end of flask and spins turbine wheel. Man in white suit turns off flame. Illustration: "RADIANT ENERGY" and spiral line or wave.
1940s: UNITED STATES: men load helicopter. Boat races across water. Vehicle drives over rough terrain
Man Turning On Faucet Water Pouring Onto Camera Lens
1970s: UNITED STATES: man stands inside metal building on industrial site. Industrial building by waterway. Man in laboratory pours water into experiment
UNITED STATES 1960s: UNITED STATES 1960s: man pouring water into equipment for a scientific experiment / man closes taps of science equipment