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  2. Orders of magnitude (time) - Wikipedia

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

    The hour hand of an analogue clock will typically cycle twice around the dial in this period as most analogue clocks are 12-hour, less common are analogue 24-hour clocks in which it cycles around once. 86.401 ks (24 h 0 min 1 s): One day with an added leap second on UTC time scale.

  3. Apollo 12 Passive Seismic Experiment - Wikipedia

    en.wikipedia.org/wiki/Apollo_12_Passive_Seismic...

    The passive seismic experiment was deployed 3 meters east of the central station. The SP seismometer displayed reduced sensitivity at low signal levels following deployment. Seismic disturbances were noted throughout the lunar day, but particularly near sunrise and sunset, these were believed to be due to expansion and contraction of the mylar ...

  4. Floating point operations per second - Wikipedia

    en.wikipedia.org/wiki/Floating_point_operations...

    First-generation (vacuum tube-based) electronic digital computer. 1961 $18.672B: $196.472B A basic installation of IBM 7030 Stretch had a cost at the time of US$7.78 million each. The IBM 7030 Stretch performs one floating-point multiply every 2.4 microseconds. [78] Second-generation (discrete transistor-based) computer. 1964 $2.3B: $23.318B

  5. Nuclear clock - Wikipedia

    en.wikipedia.org/wiki/Nuclear_clock

    The expected performance of a single-ion nuclear clock was further investigated in 2012 by Corey Campbell et al. with the result that a systematic frequency uncertainty (accuracy) of the clock of 1.5 × 10 −19 could be achieved, which would be by about an order of magnitude better than the accuracy achieved by the best optical atomic clocks ...

  6. Magnetospheric Multiscale Mission - Wikipedia

    en.wikipedia.org/wiki/Magnetospheric_Multiscale...

    The first science phase will focus on the magnetic boundary between the Earth and Sun (day side operations) for one and a half years, with the spacecraft formation orbiting the Earth at 2,550 by 70,080 km (1,580 by 43,550 mi). The second science phase will study reconnection in Earth's magnetic tail (night side operations) for half a year ...

  7. Apollo 14 Passive Seismic Experiment - Wikipedia

    en.wikipedia.org/wiki/Apollo_14_Passive_Seismic...

    The passive seismic experiment was deployed 3 meters north of the central station. At deployment, the LP vertical seismometer was unstable in the flat response mode, so all three LP seismometers were operated in peaked-response mode until 17 November 1976 when the problem was rectified.

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