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Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...
Fibonacci sequence. In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn . The sequence commonly starts from 0 and 1, although some authors start the sequence from 1 and 1 or sometimes ...
tvOS (formerly Apple TV Software) is an operating system developed by Apple Inc. for the Apple TV, a digital media player.In the first-generation Apple TV, Apple TV Software was based on Mac OS X. [3] Starting with the second generation, the software is based on the iOS operating system and has many similar frameworks, technologies, and concepts.
Grey. v. t. e. A two-dimensional pink noise grayscale image, generated with a computer program; some fields observed in nature are characterized by a similar power spectrum [ 1] A 3D pink noise image, generated with a computer program, viewed as an animation in which each frame is a 2D slice. Pink noise, 1⁄f noise, fractional noise or fractal ...
The new software also allowed a Zune device to communicate with other Zune devices to share pictures and songs. A free firmware update added the new software features to the original Zune 30, and was released on November 13, 2007. [45] The Zune 80 came bundled with a USB connection cord and premium headphones.
[17] [18] The rover mission is set to explore for at least 687 Earth days (1 Martian year) over a range of 5 by 20 km (3.1 by 12.4 mi). [ 19 ] The Mars Science Laboratory mission is part of NASA's Mars Exploration Program , a long-term effort for the robotic exploration of Mars that is managed by the Jet Propulsion Laboratory of California ...
The Apple TV app brings compatibility to the Apple TV Channels service. This update also fixes some security flaws found in Apple TV Software 7.2.2 and earlier. [136] On September 24, 2019, Apple TV Software 7.4 (iOS 8.4.3) was released to the public. [137] On March 24, 2020, Apple TV Software 7.5 (iOS 8.4.4) was released to the public. [138]
Infobox references. 1,8-Diazabicyclo [5.4.0]undec-7-ene, or more commonly DBU, is a chemical compound and belongs to the class of amidine compounds. It is used in organic synthesis as a catalyst, a complexing ligand, and a non-nucleophilic base. [ 3]