Pulsar

A pulsar (short for pulsating radio star) is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation. This radiation can be observed only when the beam of emission is pointing toward Earth (much the way a lighthouse can be seen only when the light is pointed in the direction of an observer), and is responsible for the pulsed appearance of emission. Neutron stars are very dense, and have short, regular rotational periods. This produces a very precise interval between pulses that range roughly from milliseconds to seconds for an individual pulsar. Pulsars are believed to be one of the candidates of high and ultra-high energy astroparticles (see also Centrifugal mechanism of acceleration).

The precise periods of pulsars make them useful tools. Observations of a pulsar in a binary neutron star system were used to indirectly confirm the existence of gravitational radiation. The first extrasolar planets were discovered around a pulsar, PSR B1257+12. Certain types of pulsars rival atomic clocks in their accuracy in keeping time.

Pulsar (comics)

Pulsar, in comics, may refer to:

  • Pulsar (Marvel Comics), a member of the Shi'ar Imperial Guard
  • Pulsar (Plor), a member of the Spaceknights
  • Pulsar, a codename of superhero Monica Rambeau
  • Pulsar Stargrave, a DC Comics villain
  • See also

  • Pulsar (disambiguation)
  • Pulsar 590

    Pulsar 590A and Pulsar 590E are bluetooth headsets. They are designed for use with bluetooth and A2DP (for stereo listening) enabled cellphones; including many Nokia, Sony, LG Group, Motorola, and Palm models; most other bluetooth enabled devices; or with the Plantronics universal adapter. Unlike most bluetooth headsets, the Pulsar 590A/E has stereo capabilities, meaning it can do two separate audio channels.

    Specifications

  • Battery Life: listen time of up to 10 hours, talk time of up to 12 hours, standby time of about 130 hours, each time varying by device, and a charge time of 2 hours.
  • Battery type lithium ion polymer.
  • Weight 3.45 ounces (97.7 grams).
  • Bluetooth version 2.0.
  • Headset Speakers 28 mm Neodymium.
  • Speaker frequency response: Telephony 300 Hz to 3600 Hz (CVSD u-Law), Stereo Audio 20 Hz to 20 kHz (16-bit 48 kHz SBC Coding).
  • Impedance 32 ± 4 ohms @ 1 kHz.
  • Distortion <5% to 19 kHz.
  • See also

    A2DP, the profile required for high quality stereo listening.

    Critical reception

    CNet gave the 590A 3.5/5, praising the battery life, sound quality, and ease of use, and reporting sound quality was quite good though people could still tell you were talking on a cellphone. Mobile Tech Review praised its sound quality, bluetooth performance, and looks, and gave it 4.5/5. Stuff gave it 5/5, finding the styling a bit too "office"-like, but otherwise positive.

    Podcasts:

    Pulsar

    ALBUMS

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    PLAYLIST TIME:

    Pulsar

    by: Gustavo cerati

    En viaje hacia la redención, la luz no deja de pulsar
    creo en el amor porque nunca estoy satisfecho
    es mi salvaje corazón, que llega justo a tiempo
    llega justo a tiempo.
    Allí donde quisiste estar, tan cerca de desesperar
    es que la vida es gas y es tan dulce traspasarla
    tu aliento es mi respiración
    Con mi salvaje corazón, los vicios no son del cuerpo
    y llega justo a tiempo
    llega justo a tiempo.
    En viaje hacia la redención, la luz no deja de pulsar
    Y si la confusión es una predilección humana
    todo puedo perdonar.
    Con mi salvaje corazón, los vicios no son del cuerpo
    y llegas justo a tiempo




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