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  2. Frequency (video game) - Wikipedia

    en.wikipedia.org/wiki/Frequency_(video_game)

    Frequency won GameSpot ' s annual "Best Music/Rhythm Game" award among console games, and was a runner-up for the publication's "Best Music" and "Most Innovative" prizes. [17] During the 5th Annual Interactive Achievement Awards, the Academy of Interactive Arts & Sciences nominated Frequency for the "Sound Design" award. [18]

  3. Crossword abbreviations - Wikipedia

    en.wikipedia.org/wiki/Crossword_abbreviations

    The abbreviation is not always a short form of the word used in the clue. For example: "Knight" for N (the symbol used in chess notation) Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE.

  4. High frequency - Wikipedia

    en.wikipedia.org/wiki/High_frequency

    HF's position in the electromagnetic spectrum.. High frequency (HF) is the ITU designation [1] for the band of radio waves with frequency between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters).

  5. Radio spectrum - Wikipedia

    en.wikipedia.org/wiki/Radio_spectrum

    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 and X X: 8 to 12 GHz: Used in World War II for fire control, X for cross (as in crosshair). Exotic. [19] K u: 12 to 18 GHz: Kurz-under K: 18 to 27 ...

  6. Super high frequency - Wikipedia

    en.wikipedia.org/wiki/Super_high_frequency

    Super high frequency (SHF) is the ITU designation [1] for radio frequencies (RF) in the range between 3 and 30 gigahertz (GHz). This band of frequencies is also known as the centimetre band or centimetre wave as the wavelengths range from one to ten centimetres.

  7. Audio frequency - Wikipedia

    en.wikipedia.org/wiki/Audio_frequency

    An audio frequency or audible frequency (AF) is a periodic vibration whose frequency is audible to the average human. The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. [1] The generally accepted standard hearing range for humans is 20 to 20,000 Hz.

  8. Directional sound - Wikipedia

    en.wikipedia.org/wiki/Directional_sound

    The higher frequency sound waves have a shorter wavelength and thus don't spread out as rapidly. For this reason, the resulting directivity of these devices is far higher than physically possible with any loudspeaker system. However, they are reported to have limited low-frequency reproduction abilities. See sound from ultrasound for more ...

  9. Merv Griffin's Crosswords - Wikipedia

    en.wikipedia.org/wiki/Merv_Griffin's_Crosswords

    The show's earlier episodes, with a top payout of just over $4,000, were on par with Game Show Network's earlier original programs (through 2002) – although these increased to a more respectable $10,000 range by the end of the run; despite the low clue amounts, some contestants won five-figure sums in the main game alone (for example ...