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A tin can phone is a type of acoustic (non-electrical) speech-transmitting device made up of two tin cans, paper cups or similarly shaped items attached to either end of a taut string or wire. It is a particular case of mechanical telephony , where sound (i.e., vibrations in the air) is converted into vibrations along a liquid or solid medium .
The acoustic tin can telephone, or "lovers' phone", has been known for centuries. [1] It connects two diaphragms with a taut string or wire, which transmits sound by mechanical vibrations from one to the other along the wire (and not by a modulated electric current). The classic example is the children's toy made by connecting the bottoms of ...
Cantennas can be used to increase cell phone range, [5] improve reception, and decrease noise. A cantenna can be used as a satellite dish feed horn. The 5.5 GHz cantenna dimensions are almost perfect in that they make a good fit for the standard TV satellite dish. The resulting setup is a low-cost high-quality high-gain antenna. [6]
A sound-powered telephone is a communication device that allows users to talk to each other with the use of a handset, similar to a conventional telephone, but without the use of external power. This technology has been used since at least 1944 [ 1 ] for both routine and emergency communication on ships to allow communication between key ...
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A 19th century acoustic tin can or "lovers' telephone" (from History of the telephone) Image 10 Mobile payment system (from Mobile phone ) Image 11 People using phones while walking (from Mobile phone )
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Tin can telephone → Acoustic telephone – Not all acoustic telephones are made from tin cans. The 'tin can' telephone is only one type of acoustic telephone, and as other forms are included the article's title should properly reflect its broader scope. HarryZilber 14:22, 14 May 2013 (UTC) Oppose; whatever they're made of, they're still ...
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