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Donut Media was founded in 2015 by Matt Levin, a former product head at AwesomenessTV, Ben Conrad and Nick Moceri. [1] The channel's first video was about the 24 Hours of LeMons. [2] It achieved early viral success with its 2016 video Two Grannies, One Lamborghini, which for many years was the channel's most-viewed video.
The Maidenhead Locator System (a.k.a. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts.
Direction finding ( DF ), or radio direction finding ( RDF ), is the use of radio waves to determine the direction to a radio source. The source may be a cooperating radio transmitter or may be an inadvertant source, a naturally-occurring radio source, or an illicit or enemy system.
The light is thus illuminated when the edge finder is touching the workpiece and is visible through openings in the case. A repeatability of 0.001 in (0.025 mm) can be obtained. Center finder Center finder. A center finder is a tool used to align the machining center to a precision location on a work piece.
ACP-131 [1] is the controlling publication for the listing of Q codes and Z codes. It is published and revised from time to time by the Combined Communications Electronics Board (CCEB) countries: Australia, New Zealand, Canada, United Kingdom, and United States. When the meanings of the codes contained in ACP-131 are translated into various ...
Hughes AN/TPQ-37 Firefinder Weapon Locating System [1] is a mobile radar system developed in the late 1970s by Hughes Aircraft Company, achieving Initial Operational Capability in 1980 and full deployment in 1984. Currently manufactured by ThalesRaytheonSystems, the system is a long-range version of "weapon-locating radar", designed to detect ...
A coincidence rangefinder or coincidence telemeter is a type of rangefinder that uses the principle of triangulation and an optical device to allow an operator to determine the distance to a visible object. There are subtypes split-image telemeter, inverted image, or double-image telemeter with different principles how two images in a single ...
Mathematically, a quantum operation is a linear map Φ between spaces of trace class operators on Hilbert spaces H and G such that. If S is a density operator, Tr (Φ ( S )) ≤ 1. Φ is completely positive, that is for any natural number n, and any square matrix of size n whose entries are trace-class operators and which is non-negative, then ...
The tau neutrino or tauon neutrino is an elementary particle which has the symbol. ν. τ and zero electric charge. Together with the tau ( τ), it forms the third generation of leptons, hence the name tau neutrino. Its existence was immediately implied after the tau particle was detected in a series of experiments between 1974 and 1977 by ...
A similar error can also occur where no scope resolution operator is present. For example, attempting to check whether a constant is empty () triggers this error: $ php -r 'define("foo", "bar"); if (empty(foo)) echo "empty";' Parse error: syntax error, unexpected ')', expecting T_PAAMAYIM_NEKUDOTAYIM.