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  2. Clock angle problem - Wikipedia

    en.wikipedia.org/wiki/Clock_angle_problem

    The time is usually based on a 12-hour clock. A method to solve such problems is to consider the rate of change of the angle in degrees per minute. The hour hand of a normal 12-hour analogue clock turns 360° in 12 hours (720 minutes) or 0.5° per minute. The minute hand rotates through 360° in 60 minutes or 6° per minute. [1]

  3. School timetable - Wikipedia

    en.wikipedia.org/wiki/School_timetable

    Sometimes there are 2 or 3 subjects which rotate between student bodies throughout the year. For example, the 8A students [10] might take Art in the first half of the year and Music in the second half. Off-timetable lessons: [11] sometimes an occasional lesson is scheduled "off the timetable" meaning before school, after school, or during lunch ...

  4. Age of the captain - Wikipedia

    en.wikipedia.org/wiki/Age_of_the_captain

    In 2018, the question "If a ship had 26 sheep and 10 goats onboard, how old is the ship's captain?" appeared in a fifth-grade examination for 11-year-old students of a Shunqing primary school. A Weibo commenter noted that the total weight of 26 average sheep and 10 average goats is 7,700 kg (17,000 lb). In China, one needs to have possessed a ...

  5. Complication (horology) - Wikipedia

    en.wikipedia.org/wiki/Complication_(horology)

    The Star Caliber 2000 has 21 complications. They include sunrise and sunset times and the lunar orbit, and it is capable of playing the melody of Westminster quarters (from Big Ben, the clock tower of the Houses of Parliament in London). The Franck Muller Aeternitas Mega 4 is the world's most complicated wristwatch. It has 36 complications, 25 ...

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  7. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The English word clock first appeared in Middle English as clok, cloke, or clokke. The origin of the word is not known for certain; it may be a borrowing from French or Dutch, and can perhaps be traced to the post-classical Latin clocca ('bell'). 7th century Irish and 9th century Germanic sources recorded clock as meaning 'bell'. [74]