Communications

Footage of woman wearing a prosthetic head for testing sound waves and…

Shot of focus screen for screening - includes instructions to sharpen…

Image of a woman speaking with a butcher through a video phone. Image…

CU of Alexander Graham Bell writing a letter. Computer graphics of two…

Image of man looking into microscope to look at atoms. CU of man…

Newspaper announcing transcontinental telephone line. Reenactment of a…

Cartoon of five telephone conversations through improved carrier system…

Cartoon of telephone wire in copper tube to create coaxial cables.…

Man at control panels, scientists, experiments, lab coats scientists…

Footage from a program explaining different jobs in the radio and…

Footage from a program explaining different jobs in the radio and…

Footage from a program explaining different jobs in the radio and…