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He also found that radio waves could be transmitted through different types of materials and were reflected by others, the key to radar. His experiments explain reflection, refraction, polarization, interference, and velocity of electromagnetic waves. 1893 – Victor Schumann discovers the vacuum ultraviolet spectrum.
Agucadoura Wave Farm in Portugal. The following page lists most power stations that run on wave power, however there are not many operational at present as wave energy is still a nascent technology. A longer list of proposed and prototype wave power devices is given on List of wave power projects.
English: The vertical access is the percentage of fossil vs non-fossil sources in the energy mix. The horizontal access is time from 2016 to 2050. The horizontal access is time from 2016 to 2050. Various source 'peaks' are shown and milestones in the trasition flagged in their projected positions on the timeline.
In 1802 lectures to the Royal Society, Thomas Young was the first to use the term energy to refer to kinetic energy in its modern sense, instead of vis viva. [3] In the 1807 publication of those lectures, he wrote, The product of the mass of a body into the square of its velocity may properly be termed its energy. [4]
Hertz published his work in a book titled: Electric waves: being researches on the propagation of electric action with finite velocity through space. [134] The discovery of electromagnetic waves in space led to the development of radio in the closing years of the 19th century.
Manfred von Ardenne invented and developed the flying-spot scanner, Europe's first fully electronic television camera tube. In Britain, the first television advertising and the first TV interview; 1931 The British engineer and inventor Alan Dower Blumlein (1903–1942) invents "Binaural Sound", today called "Stereo".
U.S. patent 3,928,967 — 1974 Apparatus and method of extracting wave energy – The original "Salter's Duck" patent; U.S. patent 4,134,023 — 1977 Apparatus for use in the extraction of energy from waves on water – Salter's method for improving "duck" efficiency; U.S. patent 6,194,815 — 1999 Piezoelectric rotary electrical energy generator
Pelamis Wave Power tested their first full-scale prototype at the Billia Croo wave test site at the European Marine Energy Centre (EMEC) in Orkney, Scotland between 2004 and 2007. The machine, which was rated at 750 kW, was the world's first offshore wave power machine to generate electricity into the grid system.