Stamp: Telephone by A. G. Bell, desk phone with keypad, Globe (Saudi Arabia 1976)
Telephone by A. G. Bell, desk phone with keypad, Globe (Saudi Arabia 1976)
17 July (Saudi Arabia ) within release 100th Anniversary of the Telephone goes into circulation Stamp Telephone by A. G. Bell, desk phone with keypad, Globe face value 50 Saudi halala
| Stamp Telephone by A. G. Bell, desk phone with keypad, Globe in catalogues | |
|---|---|
| Michel: | Mi: SA 599 |
| Stamp Number: | Sn: SA 721 |
Stamp is square format.
Stamp Telephone by A. G. Bell, desk phone with keypad, Globe it reflects the thematic directions:
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a celestial globe
Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information with an immediacy comparable to face-to-face communication. As such, slow communications technologies like postal mail and pneumatic tubes are excluded from the definition. Many transmission media have been used for telecommunications throughout history, from smoke signals, beacons, semaphore telegraphs, signal flags, and optical heliographs to wires and empty space made to carry electromagnetic signals. These paths of transmission may be divided into communication channels for multiplexing, allowing for a single medium to transmit several concurrent communication sessions. Several methods of long-distance communication before the modern era used sounds like coded drumbeats, the blowing of horns, and whistles. Long-distance technologies invented during the 20th and 21st centuries generally use electric power, and include the telegraph, telephone, television, and radio.
A telephone, colloquially referred to as a phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Ancient Greek: τῆλε, romanized: tēle, lit. 'far' and φωνή (phōnē, voice), together meaning distant voice.
