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  2. Van der Graaf Generator - Wikipedia

    en.wikipedia.org/wiki/Van_der_Graaf_Generator

    Van der Graaf Generator are a progressive rock band. [1] Writing in Record Collector , Toby Manning said the music was "philosophical, even intellectual, complex .. at times, terrifying". [ 91 ] While the music on The Aerosol Grey Machine (September 1969) has a more pastoral, hippie feel, [ 92 ] with prominent use of Hammill's acoustic guitar ...

  3. Signal generator - Wikipedia

    en.wikipedia.org/wiki/Signal_generator

    In June 1928, the General Radio 403 was the first commercial signal generator ever marketed. It supported a frequency range of 500 Hz to 1.5 MHz. [2] Also, in April 1929, the first commercial frequency standard was marketed by General Radio with a frequency of 50 KHz.

  4. Noise generator - Wikipedia

    en.wikipedia.org/wiki/Noise_generator

    Noise generator. Zener diode based noise source. A noise generator is a circuit that produces electrical noise (i.e., a random signal). Noise generators are used to test signals for measuring noise figure, frequency response, and other parameters. Noise generators are also used for generating random numbers.

  5. Random.org - Wikipedia

    en.wikipedia.org/wiki/Random.org

    Random.org (stylized as RANDOM.ORG) is a website that produces random numbers based on atmospheric noise. [1] In addition to generating random numbers in a specified range and subject to a specified probability distribution , which is the most commonly done activity on the site, it has free tools to simulate events such as flipping coins ...

  6. AN/URM-25D signal generator - Wikipedia

    en.wikipedia.org/wiki/AN/URM-25D_Signal_Generator

    The AN/URM-25 was part of a series of vacuum tube-based signal generators built for the U.S. military in the early Cold War-era.. Today they are collected and used by vintage amateur radio and antique radio enthusiasts who say they provide reasonably high accuracy and stability for a low cost, with build quality reflecting tough military construction requirements and standards.

  7. Radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Radioisotope...

    Diagram of an RTG used on the Cassini probe. A radioisotope thermoelectric generator ( RTG, RITEG ), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.

  8. Hardware random number generator - Wikipedia

    en.wikipedia.org/wiki/Hardware_random_number...

    A USB-pluggable hardware true random number generator. In computing, a hardware random number generator (HRNG), true random number generator (TRNG), non-deterministic random bit generator (NRBG), [1] or physical random number generator [2] [3] is a device that generates random numbers from a physical process capable of producing entropy (in other words, the device always has access to a ...

  9. Wikipedia:Random - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Random

    WP:RAN. On Wikipedia and other sites running on MediaWiki, Special:Randomcan be used to access a random article in the main namespace; this feature is useful as a tool to generate a random article. Depending on your browser, it's also possible to load a random page using a keyboard shortcut(in Firefox, Edge, and Chrome Alt-Shift+X).