enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Water hole (radio) - Wikipedia

    en.wikipedia.org/wiki/Water_hole_(radio)

    The waterhole, or water hole, is an especially quiet band of the electromagnetic spectrum between 1420 and 1662 megahertz, corresponding to wavelengths of 18–21 centimeters. It is a popular observing frequency used by radio telescopes in radio astronomy .

  3. Hole in one - Wikipedia

    en.wikipedia.org/wiki/Hole_in_one

    In golf, a hole in one or hole-in-one occurs when a ball hit from a tee to start a hole finishes in the cup. The feat is also known as an ace, mostly in American English.As the feat needs to occur on the stroke that starts a hole, a ball hit from a tee following a lost ball, out-of-bounds, or water hazard is not a hole-in-one, due to the application of a stroke penalty.

  4. Radio spectrum - Wikipedia

    en.wikipedia.org/wiki/Radio_spectrum

    Radar-frequency bands according to IEEE standard [17] Band designation Frequency range Explanation of meaning of letters; HF: 0.003 to 0.03 GHz: High frequency [18] VHF: 0.03 to 0.3 GHz: Very high frequency [18] UHF: 0.3 to 1 GHz: Ultra-high frequency [18] L: 1 to 2 GHz: Long wave S: 2 to 4 GHz: Short wave C: 4 to 8 GHz: Compromise between S ...

  5. The most heartbreaking hole-in-one miss you'll ever see: The ...

    www.aol.com/sports/most-heartbreaking-hole-one...

    According to the National Hole-in-One Registry — a valued institution on par (golf term) with the National Archives — the odds of making a hole-in-one are one in 12,500. Most recreational ...

  6. Scientific pitch notation - Wikipedia

    en.wikipedia.org/wiki/Scientific_pitch_notation

    Scientific pitch notation is often used to specify the range of an instrument. It provides an unambiguous means of identifying a note in terms of textual notation rather than frequency, while at the same time avoiding the transposition conventions that are used in writing the music for instruments such as the clarinet and guitar.

  7. Golfer predicts his own hole-in-one moments before hitting it ...

    www.aol.com/sports/golfer-predicts-own-hole-one...

    There are few things better than hitting a hole-in-one, and the fact that the guy called it in front of all of his friends makes it that much sweeter. He has a great story to tell and can make his ...

  8. Loudspeaker enclosure - Wikipedia

    en.wikipedia.org/wiki/Loudspeaker_enclosure

    MTX Audio loudspeaker enclosures (with rear panel reflex port tubes) which can mount 15-inch woofers, mid-range drivers and horn and/or compression tweeters. In this photo, only one driver is mounted. A cabinet with loudspeakers mounted in the holes. Number 1 is a mid-range driver. Number 2 is a high-range driver.

  9. Helmholtz resonance - Wikipedia

    en.wikipedia.org/wiki/Helmholtz_resonance

    The Helmholtz resonator, as it is now called, consists of a rigid container of a known volume, nearly spherical in shape, with a small neck and hole in one end and a larger hole in the other end to emit the sound. When the resonator's 'nipple' is placed inside one's ear, a specific frequency of the complex sound can be picked out and heard clearly.