| 00:52:02 8.63 |
TELEPHONE SCIENTIST LOOKS THROUGH METALOGRAPHIC
MICROSCOPE. 12 FOOT LONG LABORATORY APPARATUS. DR. LUCAS. TELEPHONE RESEARCH. LIQUID FILLED PRISM. |
| 00:54:29 155.63 |
CU SPECIMEN OF CARBON STEEL, HIGHLY POLISHED
AND SET IN BAKELITE. PUTS UNDER MICROSCOPE, SCIENTIST LOOKING UNDER MICROSCOPE. CARBON STEEL SEEN THROUGH MICROSCOPE |
| 00:55:17 203.63 |
SCIENTIST SLIPS PLATE HOLDER INTO PLACE, MAKES
TIMES EXPOSURE. CU PHOTOGRAPHIC PRINT OF CARBON STEEL MAGNIFIED BY MICROSCOPE. |
| 00:55:44 230.63 |
CU SCIENTIST LOOKING INTO MICROSCOPE
|
| 00:55:58 244.63 |
SWITCHBOARD OPERATORS. CIRCUITS.
|
| 00:56:06 252.63 |
USING COTTON IN TELEPHONE CIRCUITS. THOUSANDS OF
WIRES THAT MAKE PHONES WORK. SPOOLS OF COTTON THREAD. INSULATING SPRING COILS WITH COTTON. COTTON YARN IN WASH TUB. SPOOLS OF THREAD WHEELED INTO LARGE OVEN. SPINNING WIRE & COTTON THREAD. |
| 00:59:34 460.63 |
HIGHWAY BUILDERS. VERMONT MOUNTAINS. MAN HANGING
FROM WIRE CABLES. RIVER. TRACTOR. MASSIVE SPOOL OF LEAD CABLE. INSTALLING CABLE ON HIGHWAYS |
| 01:00:57 543.63 |
NEW MEXICO. HIGHWAY IN THE DESERT. TELEPHONE POLES.
|
| 01:01:18 564.63 |
COUPLE IN COVERED WAGON. DESERT. ROUTE 66.
|
| 01:01:23 569.63 |
VALLEY. WILL ROGERS HIGHWAY. TELEPHONE LINEMEN
INSTALLING POLES, WIRES. |
| 01:01:44 590.63 |
HOLLYWOOD, CALIFORNIA. RIVER. BUILDING BRIDGE.
WORKERS ON WINCH SLIDES ALONG CABLE. |
| 01:01:58 604.63 |
PAN WASHED OUT ROADS, BRIDGE, FROM 1938 DISASTER.
|
| 01:02:17 623.63 |
WORKERS IN OPEN-ENDED TENT, MEN ON TELEPHONES
|
| 01:02:20 626 |
TAPE ENDS
|
Jump to this Point
Year: 1940-1949
Color: Black & White
Genre: TECHNOLOGY & SCIENCE, GENERAL
Specialty CollectionGenre: TECHNOLOGY & SCIENCE, GENERAL
Description: INFORMATION OF VARIOUS ACTIVITIES AND INTERESTING DEVELOPMENTS IN THE ART OF TELEPHONY. COMMUNICATIONS
