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  2. Ship's bell - Wikipedia

    en.wikipedia.org/wiki/Ship's_bell

    Most United States Navy ships of the post–World War II era have actually carried 2 or 3 bells: the larger bell engraved with the ship's name, mounted on the forecastle, and smaller bells in the pilot house and at the quarterdeck at the 1MC (public address) station, for use in making shipwide announcements and marking the time. The larger bell ...

  3. Knot (unit) - Wikipedia

    en.wikipedia.org/wiki/Knot_(unit)

    1 nautical mile per hour (by definition), 1 852.000 metres per hour (exactly), [5] 0.51444 metres per second (approximately), 1.15078 miles per hour (approximately), 20.25372 inches per second (approximately) 1.68781 feet per second (approximately). The length of the internationally agreed nautical mile is 1 852 m.

  4. Change ringing - Wikipedia

    en.wikipedia.org/wiki/Change_ringing

    For example, while six bells have 720 permutations, eight bells have 40,320; furthermore, 10! = 3,628,800, and 12! = 479,001,600. Estimating two seconds for each change (a reasonable pace), one finds that while an extent on six bells can be accomplished in half an hour, an extent on eight bells should take nearly twenty-two and a half hours.

  5. KTS - Wikipedia

    en.wikipedia.org/wiki/KTS

    Knot (unit), a unit of speed equal to one nautical mile per hour; Kotlin (programming language), uses the .kts file extension for Kotlin script files; Brevig Mission Airport (IATA: KTS) Potassium thiosulfate, a chemical compound commonly abbreviated as KTS. Københavns Tekniske Skole, a school of secondary education in Copenhagen, Denmark

  6. Beaufort scale - Wikipedia

    en.wikipedia.org/wiki/Beaufort_scale

    4–6 knots 4–7 mph 6–11 km/h 1.6–3.3 m/s 1–2 ft 0.3–0.6 m Small wavelets still short but more pronounced; crests have a glassy appearance but do not break Wind felt on face; leaves rustle; wind vane moved by wind 3 Gentle breeze 7–10 knots 8–12 mph 12–19 km/h 3.4–5.4 m/s 2–4 ft 0.6–1.2 m

  7. Indicated airspeed - Wikipedia

    en.wikipedia.org/wiki/Indicated_airspeed

    A basic airspeed indicator with the indicated airspeed (IAS) indicated in knots ("Kt" or "Kts" or "KIAS") -- the most common unit of measure for airspeed. Some airspeed indicators in aircraft prior to the mid-1970s indicate in miles per hour plus knots (1 knot = 1.15 mph) or kilometers per hour (1 knot = 1.85 km/h).

  8. Method ringing - Wikipedia

    en.wikipedia.org/wiki/Method_ringing

    In rows where one or more bells stay in place write down the place numbers which do not change, so that the second row is written "16". Plain Bob Minor is therefore x16x16x16x16x16x12. Many methods are symmetrical, and so only the first half lead is given, along with possibly the lead end. Plain Bob Minor is thus: x16x16x16 le:12.

  9. Engine order telegraph - Wikipedia

    en.wikipedia.org/wiki/Engine_order_telegraph

    In its original form, from the 19th century until about 1950, the device usually consisted of a round dial about 9 inches (230 mm) in diameter with a knob at the center attached to one or more handles, and an indicator pointer on the face of the dial. There would also be a revolutions per minute (RPM) indicator, worked by a hand crank. Modern ...