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  2. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    Dials that showed minutes and seconds became common after the increase in accuracy made possible by the pendulum clock. Brahe used clocks with minutes and seconds to observe stellar positions. [112] The pendulum clock outperformed all other kinds of mechanical timekeepers to such an extent that these were usually refitted with a pendulum—a ...

  3. Hourglass - Wikipedia

    en.wikipedia.org/wiki/Hourglass

    An hourglass (or sandglass, sand timer, or sand clock) is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance (historically sand ) from the upper bulb to the lower one due to gravity .

  4. Wheel train - Wikipedia

    en.wikipedia.org/wiki/Wheel_train

    It is called the third wheel because the mainspring barrel is the first wheel and the center wheel is the second wheel in the gear train. Fourth wheel which, in clocks and watches with the second hand in a subdial, turns once per minute and the arbor projects through the face and holds the second hand. The fourth wheel also turns the escape ...

  5. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    One hundredth of a second. decisecond: 10 −1 s: One tenth of a second. second: 1 s: SI base unit for time. decasecond: 10 s: Ten seconds (one sixth of a minute) minute: 60 s: hectosecond: 100 s: milliday: 1/1000 d (0.001 d) 1.44 minutes, or 86.4 seconds. Also marketed as a ".beat" by the Swatch corporation. moment: 1/40 solar hour (90 s on ...

  6. Clock - Wikipedia

    en.wikipedia.org/wiki/Clock

    The standard clock face, known universally throughout the world, has a short "hour hand" which indicates the hour on a circular dial of 12 hours, making two revolutions per day, and a longer "minute hand" which indicates the minutes in the current hour on the same dial, which is also divided into 60 minutes. It may also have a "second hand ...

  7. Clock position - Wikipedia

    en.wikipedia.org/wiki/Clock_position

    Today's state the hours, minutes, and seconds. In a strict sexagesimal system these three would be expressed in a single, three-digit sexagesimal number: h,m,s with values on each of the three letters of 0-59; that is, hours up to 60, minutes up to 60, and seconds up to 60. Because integer numbers are expressed as sums, in this case

  8. 11 Fast-Food Soups, Ranked Best to Worst - AOL

    www.aol.com/11-fast-food-soups-ranked-170000031.html

    2. Chick-fil-A Chicken Noodle Soup. Price: $4.15 cup / $6.35 bowl Chick-fil-A’s chicken noodle soup is leagues better than it has any right to be. There’s so much flavor in this broth, and the ...

  9. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    3.6 ks: The length of one hour (h), the time for the minute hand of a clock to cycle once around the face, approximately 1/24 of one mean solar day 7.2 ks (2 h): The typical length of feature films 35.73 ks: the rotational period of planet Jupiter, fastest planet to rotate 38.0196 ks: rotational period of Saturn, second shortest rotational period