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  2. Dynamo - Wikipedia

    en.wikipedia.org/wiki/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, including the electric motor, the alternating-current ...

  3. Mechanically powered flashlight - Wikipedia

    en.wikipedia.org/wiki/Mechanically_powered...

    A dyno torch, dynamo torch, or squeeze flashlight is a flashlight or pocket torch which generates energy via a flywheel. The user repeatedly squeezes a handle to spin a flywheel inside the flashlight, attached to a small generator/dynamo, supplying electric current to an incandescent bulb or light-emitting diode. The flashlight must be pumped ...

  4. Dynamo theory - Wikipedia

    en.wikipedia.org/wiki/Dynamo_theory

    If the magnetic field does grow, then the system is either capable of dynamo action or is a dynamo, but if the magnetic field does not grow, then it is simply referred to as “not a dynamo”. An analogous method called the membrane paradigm is a way of looking at black holes that allows for the material near their surfaces to be expressed in ...

  5. Electric generator - Wikipedia

    en.wikipedia.org/wiki/Electric_generator

    The magnetic field of the dynamo or alternator can be provided by either wire windings called field coils or permanent magnets. Electrically-excited generators include an excitation system to produce the field flux. A generator using permanent magnets (PMs) is sometimes called a magneto, or a permanent magnet synchronous generator (PMSG).

  6. Dynamometer - Wikipedia

    en.wikipedia.org/wiki/Dynamometer

    A chassis dynamometer.. A dynamometer or "dyno" is a device for simultaneously measuring the torque and rotational speed of an engine, motor or other rotating prime mover so that its instantaneous power may be calculated, and usually displayed by the dynamometer itself as kW or bhp.

  7. Commutator (electric) - Wikipedia

    en.wikipedia.org/wiki/Commutator_(electric)

    Frank. B. Rae & Clarence. L. Healy - U.S. patent 294,270 - Commutator For Dynamo or Magneto Electric Machines - 1884 February 26. Nikola Tesla - U.S. patent 334,823 - Commutator for Dynamo Electric Machines - 1886 January 26. Thomas E. Adams - U.S. patent 340,537 - Commutator for Dynamo-Electric Machines - 1886 April 27.

  8. How Did This Octopus Open a Screw-Top Lid? - AOL

    www.aol.com/did-octopus-open-screw-top-083000982...

    Scientists were expecting the octopus to work on problem-solving solutions by understanding how the screw top lid works and opening it with its arms. But the octopus bypassed the screw top completely.

  9. Motor–generator - Wikipedia

    en.wikipedia.org/wiki/Motor–generator

    While a motor–generator set may consist of distinct motor and generator machines coupled together, a single unit dynamotor (for dynamo–motor) has the motor coils and the generator coils wound around a single rotor; both the motor and generator therefore share the same outer field coils or magnets. [1]