File:Photophone plaque (no copyright applies).jpg
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Summary
An image of a historical plaque on the wall of the Franklin School in Washington, D.C., at 13th & K Streets NW., which marks one of the two building rooftops used by Alexander Graham Bell and Charles Sumner Tainter to conduct the world's first wireless telecommunication. The plaque's text reads:
- FROM THE TOP FLOOR OF THIS BUILDING • WAS SENT ON JUNE 3, 1880 • OVER A BEAM OF LIGHT TO 1325 L STREET • THE FIRST WIRELESS TELEPHONE MESSAGE • IN THE HISTORY OF THE WORLD. • THE APPARATUS USED IN SENDING THE MESSAGE • WAS THE PHOTOPHONE INVENTED BY • ALEXANDER GRAHAM BELL • INVENTOR OF THE TELEPHONE • THIS PLAQUE WAS PLACED HERE BY • ALEXANDER GRAHAM BELL CHAPTER • TELEPHONE PIONEERS OF AMERICA • MARCH 3, 1947, • THE CENTENNIAL OF DR. BELL'S BIRTH
Four patents were awarded for this technology and invention, which Bell described as his greatest achievement.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:05, 12 January 2017 | | 641 × 438 (64 KB) | 127.0.0.1 (talk) | An image of a historical plaque on the wall of the Franklin School in Washington, D.C., at 13th & K Streets NW., which marks one of the two building rooftops used by Alexander Graham Bell and Charles Sumner Tainter to conduct the world's first wireless telecommunication. The plaque's text reads: <dl><dd>FROM THE TOP FLOOR OF THIS BUILDING • WAS SENT ON JUNE 3, 1880 • OVER A BEAM OF LIGHT TO 1325 L STREET • THE FIRST WIRELESS TELEPHONE MESSAGE • IN THE HISTORY OF THE WORLD. • THE APPARATUS USED IN SENDING THE MESSAGE • WAS THE PHOTOPHONE INVENTED BY • ALEXANDER GRAHAM BELL • INVENTOR OF THE TELEPHONE • THIS PLAQUE WAS PLACED HERE BY • ALEXANDER GRAHAM BELL CHAPTER • TELEPHONE PIONEERS OF AMERICA • MARCH 3, 1947, • THE CENTENNIAL OF DR. BELL'S BIRTH</dd></dl> Four patents were awarded for this technology and invention, which Bell described as his greatest achievement. |
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