technology

Gradine Bartlett Pears boxes on tractors, pears in cases, pears in hand…

Demonstration of how an oscilloscope reads high pitched tones that…

Robot arm lifts up flower. Robot on back of truck. Mechanized robot,…

Man checks dials on large machine, writes notes. Sign/animation “No job…

A young boy settles down into bed. He then reaches up and turns on the…

Two men using CB radio, talking into it while voice over praises…

Atomic scientist Robert Oppenheimer testifies in Washington D.C. on…

how sound waves are received by ear.

American families watch television.

Video phone caller catches woman in nightie. Video phones montage.…

Heavy machinery, Steam power generating machine, Train rushing along…

A businessman uses picture phone technology to have a conversation. CU…