This reel is part of one of our Specialty Collections. Online viewing or downloads of low-res versions for offline viewing will be available for only more day, though. Online viewing or downloads of low-res versions for offline viewing has now expired, though, and cannot be viewed online. "Pro" account holders can download a low-res version for offline viewing.
Sign up for a "Pro" account to download this footage.
This reel is currently not available for online viewing.
Sorry, this video is temporarily unavailable for online viewing or download. Please try again later.
Restricted Material
Access to this reel with audio is restricted. It will be available for only more day.
Access to this reel with audio has expired.
| 01:00:02 1.4 |
CU ELECTRIC BELL OPERATED WITH A BUZZER EXPLAINATION ON HOW IT WORKS ANIMATED ILLUSTRATIONS
|
| 01:01:31 91.4 |
CU HAND OPERATES TELEGRAPH MACHINE SENDS MORSE CODE THROUGH ELECTRONIC CLICKS INFO RECORDED ONTO PAPER ROLL DETAILS ON HOW THE TELEGRAPH WORKS
|
| 01:01:59 119.4 |
MONTAGE LAYING OF TELEGRAPH OR PHONE WIRES ACROSS THE OCEAN TRANSATLANTIC CABLE
|
| 01:02:59 179.4 |
CU OLD FASHIONED TELEPHONE AND HOW IT WORK DIAL IS DISESSEMBLED CARBON GRANULES IN PHONE ARE REMOVED ANIMATION ON HOW THE PHONE WORKS
|
| 01:05:09 308.4 |
MS 1920S TELEPHONE SWITCHBOARD AND OPERATOR
|
| 01:06:25 384.4 |
HISTORY OF THE FIRST SWITCHBOARD HOW WE HEAR THE PHONE HUMAN EAR ANIMATION
|
| 01:10:34 634.4 |
LONG DISTANCE TELEPHONEY ANIMATION. SOUND WAVES EMIT FROM TOWERS IN EASTERN UNITED STATES OVER THE OCEAN TO EUROPE
|
| 01:10:37 637.4 |
HOW SOUNDWAVES TRAVEL THROUGH WIRE
|
| 01:11:40 700.4 |
AUDIO TUBE ANIMATION
|
| 01:11:49 709.4 |
SCIENTIFIC ANIMATED GRAPH TO ILLUSTRATE HOW THE TELEPHONE WORKS AND HOW SOUND WAVES CARRY CONDENSOR PAN UP LARGE 1920S PHONE TOWER
|
