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  2. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    1024 s: One septillionth of a second. jiffy (physics) 3 × 1024 s: The amount of time light takes to travel one fermi (about the size of a nucleon) in a vacuum. zeptosecond: 10 −21 s: One sextillionth of a second. Time measurement scale of the NIST and JILA strontium atomic clock. Smallest fragment of time currently measurable is 247 ...

  3. Orders of magnitude (time) - Wikipedia

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

    1 μs: The time needed to execute one machine cycle by an Intel 80186 microprocessor 2.2 μs: The lifetime of a muon 4–16 μs: The time needed to execute one machine cycle by a 1960s minicomputer: 10 −3: millisecond: ms One thousandth of one second 1 ms: The time for a neuron in the human brain to fire one impulse and return to rest [13]

  4. Day - Wikipedia

    en.wikipedia.org/wiki/Day

    A full dark and light period, sometimes called a nychthemeron in English, from the Greek for night-day; [18] or more colloquially the term 24 hours. In other languages, 24 hours is also often used. Other languages also have a separate word for a full day. Part of a date: the day of the year (doy) in ordinal dates, day of the month (dom) in ...

  5. Medical resident work hours - Wikipedia

    en.wikipedia.org/wiki/Medical_resident_work_hours

    Residents may not assume responsibility for a new patient after working 24 hours. The trainee shall have on alternate weeks 48-hour periods off, or at least one 24-hour period off each week, averaged over a 4-week period. Upon conclusion of a 24-hour duty shift, trainees shall have a minimum of 10 hours off before being required to be on duty ...

  6. Mechanochemistry - Wikipedia

    en.wikipedia.org/wiki/Mechanochemistry

    [1] Mechanochemistry is not the same as mechanosynthesis, which refers specifically to the machine-controlled construction of complex molecular products. [2] [3] In natural environments, mechanochemical reactions are frequently induced by physical processes such as earthquakes, [4] glacier movement [5] or hydraulic action of rivers or waves. In ...

  7. Time value of money - Wikipedia

    en.wikipedia.org/wiki/Time_value_of_money

    Time value of money problems involve the net value of cash flows at different points in time. In a typical case, the variables might be: a balance (the real or nominal value of a debt or a financial asset in terms of monetary units), a periodic rate of interest, the number of periods, and a series of cash flows. (In the case of a debt, cas

  8. EN 590 - Wikipedia

    en.wikipedia.org/wiki/EN_590

    Carbon residue (on 10% distillation residue) %m/m-0.30: EN ISO 10370 Ash content % (m/m)-0.01: EN ISO 6245 Water content: mg/kg-200: EN ISO 12937 Total contamination: mg/kg-24: EN ISO 12662 Copper strip corrosion (3 hours at 50 °C) rating: Class 1: Class 1: EN ISO 2160 Oxidation Stability: g/m 3-25: EN ISO 12205 Lubricity, corrected wear scar ...

  9. Affordable Care Act - Wikipedia

    en.wikipedia.org/wiki/Affordable_Care_Act

    Trends in working hours [324] and the recovery from the Great Recession correlate with the shift from part-time to full-time work. [ 325 ] [ 326 ] Other confounding impacts include that health insurance helps attract and retain employees, increases productivity and reduces absenteeism; and lowers corresponding training and administration costs ...