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Louis de Broglie. Louis Victor Pierre Raymond, 7th Duc de Broglie ( / də ˈbroʊɡli /, [1] also US: / də broʊˈɡliː, də ˈbrɔɪ /, [2] [3] French: [də bʁɔj] [4] [5] or [də bʁœj] ⓘ; 15 August 1892 – 19 March 1987) [6] was a French aristocrat and physicist who made groundbreaking contributions to quantum theory. In his 1924 PhD ...
Too cheap to meter. "Too cheap to meter" is a slogan first attributed to nuclear power. Too cheap to meter refers to a commodity so inexpensive that it is cheaper and less bureaucratic to simply provide it for a flat fee or even free and make a profit from associated services. Originally applied to nuclear power, the phrase is also used for ...
The Great Radio Controversy is the second studio album by American hard rock band Tesla, released in 1989. The album's sound has been described as "glam metal to play inside the cab of a tractor-blusey denim and downright wholesome".
The Reststrahlen effect (German: “residual rays”) is a reflectance phenomenon in which electromagnetic radiation within a narrow energy band cannot propagate within a given medium due to a change in refractive index concurrent with the specific absorbance band of the medium in question; this narrow energy band is termed the Reststrahlen band .
People! was an American one-hit wonder rock band that was formed in San Jose, California in 1965. Their greatest chart success came with their summer hit single "I Love You" . The song, written by The Zombies bass guitarist Chris White , rose to number one in Japan (twice), Israel, Australia, Italy, South Africa, and the Philippines, and peaked ...
The product of the mass of a body into the square of its velocity may properly be termed its energy. [4] Gustave-Gaspard Coriolis described "kinetic energy" in 1829 in its modern sense, and in 1853, William Rankine coined the term " potential energy ." It was argued for some years whether energy was a substance (the caloric) or merely a ...
Light-emitting diodes (LEDs) produce light (or infrared radiation) by the recombination of electrons and electron holes in a semiconductor, a process called "electroluminescence". The wavelength of the light produced depends on the energy band gap of the semiconductors used. Since these materials have a high index of refraction, [note 1] design ...
In solid-state physics and solid-state chemistry, a band gap, also called a bandgap or energy gap, is an energy range in a solid where no electronic states exist. In graphs of the electronic band structure of solids, the band gap refers to the energy difference (often expressed in electronvolts) between the top of the valence band and the ...