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Trevor Graham Baylis CBE (13 May 1937 – 5 March 2018) was an English inventor best known for the wind-up radio.The radio, instead of relying on batteries or external electrical source, is powered by the user winding a crank.
In 2013, inventor Trevor Baylis admitted he was facing having to sell his home because despite his invention, the wind-up radio, being sold around the world, he was almost bankrupt. He said his problems stemmed from Freeplay Energy, which he had joined in partnership to manufacture his radios.
Imran Chaudhri (1973– ) invented the user interface and interactions of the iPhone, also worked on the Mac, iPod, iPad, Apple TV and Apple Watch; John Clark (1785-1853) invented the first automated poetry generator, The Eureka, and patented a method to waterproof fabric for air beds and air cushions in 1813.
A dyno torch, dynamo torch, or squeeze flashlight is a flashlight or pocket torch which generates energy via a flywheel.The user repeatedly squeezes a handle to spin a flywheel inside the flashlight, attached to a small generator/dynamo, supplying electric current to an incandescent bulb or light-emitting diode.
Before the discovery of electromagnetic waves and the development of radio communication, there were many wireless telegraph systems proposed and tested. [4] In April 1872 William Henry Ward received U.S. patent 126,356 for a wireless telegraphy system where he theorized that convection currents in the atmosphere could carry signals like a telegraph wire. [5]
Harry Mendell, U.S. – invented the first digital sampling synthesizer; Joy Mangano (born 1956), U.S. – household appliances; Anna Mangin (1844–1931) – American inventor, educator, caterer and women's rights campaigner; Charles Mantoux (1877–1947), France – Mantoux test (tuberculosis) Guglielmo Marconi (1874–1937), Italy – radio ...
Mahlon Loomis (21 July 1826 – 13 October 1886) was an American dentist and inventor known for proposing a wireless communication and electric power generating system based on his idea that there were electrically charged layers in the Earth's atmosphere.
A 1930s portable wind-up gramophone from The Gramophone Company. In the 1930s, vinyl (originally known as vinylite) was introduced as a record material for radio transcription discs, and for radio commercials. At that time, virtually no discs for home use were made from this material.