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The Kelvin water dropper, invented by Scottish scientist William Thomson (Lord Kelvin) in 1867, [ 1] is a type of electrostatic generator. Kelvin referred to the device as his water-dropping condenser. The apparatus is variously called the Kelvin hydroelectric generator, the Kelvin electrostatic generator, or Lord Kelvin's thunderstorm.
Electric generator. U.S. NRC image of a modern steam turbine generator (STG). In electricity generation, a generator[ 1] is a device that converts motion-based power ( potential and kinetic energy) or fuel-based power ( chemical energy) into electric power for use in an external circuit. Sources of mechanical energy include steam turbines, gas ...
Shepard tone. A spectrum view of ascending Shepard tones on a linear frequency scale. A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the bass pitch of the tone moving upward or downward, it is referred to as the Shepard scale.
A diphthong ( / ˈdɪfθɒŋ, ˈdɪp -/ DIF-thong, DIP-; [ 1] from Ancient Greek δίφθογγος (díphthongos) 'two sounds', from δίς (dís) 'twice' and φθόγγος (phthóngos) 'sound'), also known as a gliding vowel or a vowel glide, is a combination of two adjacent vowel sounds within the same syllable. [ 2] Technically, a ...
Moonfall (film) Moonfall. (film) Moonfall is a 2022 science fiction disaster film co-written, directed, and produced by Roland Emmerich. It stars Halle Berry, Patrick Wilson, John Bradley, Michael Peña, Charlie Plummer, Kelly Yu, Carolina Bartczak, and Donald Sutherland. It follows two former astronauts alongside a conspiracy theorist who ...
Matrix digital rain, or Matrix code, is the computer code featured in the “Ghost in the shell” and the Matrix series. The falling green code is a way of representing the activity of the simulated reality environment of the Matrix on screen by kinetic typography. All four Matrix movies, as well as the spin-off The Animatrix episodes, open ...
The English suffixes -phobia, -phobic, -phobe (from Greek φόβος phobos, "fear") occur in technical usage in psychiatry to construct words that describe irrational, abnormal, unwarranted, persistent, or disabling fear as a mental disorder (e.g. agoraphobia), in chemistry to describe chemical aversions (e.g. hydrophobic), in biology to describe organisms that dislike certain conditions (e.g ...
Dynamo. "Dynamo Electric Machine" (end view, partly section, U.S. patent 284,110) A dynamo is an electrical generator that creates direct current using a commutator. Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based ...