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  2. Coach's box - Wikipedia

    en.wikipedia.org/wiki/Coach's_box

    In basketball, it is a line that represents how far a coach may come towards centercourt and away from the sideline. [2] The NCAA introduced a coach's box before the 1984–85 season. [ 3 ] During the 2017–18 NCAA basketball season, the coach's box was expanded to allow coaches to stand 38 feet (12 m) from the baseline.

  3. Transmissometer - Wikipedia

    en.wikipedia.org/wiki/Transmissometer

    In a transmissometer the extinction coefficient is determined by measuring direct light transmissivity, and the extinction coefficient is then used to calculate visibility range. [ 2 ] Atmospheric extinction is a wavelength dependent phenomenon, but the most common wavelength in use for transmissometers is 550 nm , which is in the middle of the ...

  4. Visibility - Wikipedia

    en.wikipedia.org/wiki/Visibility

    The international definition of fog is a visibility of less than 1 km (3,300 ft); mist is a visibility of between 1 km (0.62 mi) and 2 km (1.2 mi) and haze from 2 km (1.2 mi) to 5 km (3.1 mi). Fog and mist are generally assumed to be composed principally of water droplets, haze and smoke can be of smaller particle size.

  5. Radar cross section - Wikipedia

    en.wikipedia.org/wiki/Radar_cross_section

    To calculate the radar cross-section of such a stealth body, one would typically do one-dimensional reflection calculations to calculate the surface impedance, then two dimensional numerical calculations to calculate the diffraction coefficients of edges and small three dimensional calculations to calculate the diffraction coefficients of ...

  6. Games behind - Wikipedia

    en.wikipedia.org/wiki/Games_behind

    The games behind calculation is often used in professional baseball and basketball, where tie games are not permitted. [ a ] Standings for these sports appearing in print or online during a season usually will have teams ordered by winning percentages, with a "GB" column provided as a convenience to the reader.

  7. Batter's eye - Wikipedia

    en.wikipedia.org/wiki/Batter's_eye

    Wrigley Field, before the 2005–2006 remodeling, with juniper-filled Batter's Eye section visible.. The batter's eye or batter's eye screen is a solid-colored, usually dark area beyond the center field wall of a baseball stadium, that is the visual backdrop directly in the line of sight of a baseball batter, while facing the pitcher and awaiting a pitch.

  8. AOL Video - Serving the best video content from AOL and ...

    www.aol.com/video/view/how-to-play-baseball...

    The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  9. Twenty-one (basketball) - Wikipedia

    en.wikipedia.org/wiki/Twenty-one_(basketball)

    Twenty-one, also called play21basketball, cutthroat, hustle, tip-it, noyceball, roughhouse, scutter, rough, or rebound [1] is a popular variation of street basketball. The game is played with any number of players on a half court, but typically when not enough players are available to at least play three-on-three.