enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    A unit of time is any particular time interval, used as a standard way of measuring or expressing duration. The base unit of time in the International System of Units (SI), and by extension most of the Western world , is the second , defined as about 9 billion oscillations of the caesium atom.

  3. System of units of measurement - Wikipedia

    en.wikipedia.org/wiki/System_of_units_of_measurement

    Gaussian units have only length, mass, and time as base quantities, with no separate electromagnetic dimension. Other quantities, such as power and speed, are derived from the base quantities: for example, speed is distance per unit time. Historically, a wide range of units was used for the same type of quantity.

  4. Time constant - Wikipedia

    en.wikipedia.org/wiki/Time_constant

    In physics and engineering, the time constant, usually denoted by the Greek letter τ (tau), is the parameter characterizing the response to a step input of a first-order, linear time-invariant (LTI) system. [1] [note 1] The time constant is the main characteristic unit of a first-order LTI system. It gives speed of the response. In the time ...

  5. JCB - Wikipedia

    en.wikipedia.org/wiki/JCB

    JCB (heavy equipment manufacturer), a British manufacturer of heavy industrial and agricultural vehicles JCB (callsign JAYSEEBEE; ICAO airline code JCB); see List of airline codes (J) JCB (credit card company), originally Japan Credit Bureau, a credit card company based in Tokyo, Japan; JCB (wine label), a wine label by vinter Jean-Charles Boisset

  6. Orders of magnitude (time) - Wikipedia

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

    An order of magnitude of time is usually a decimal prefix or decimal order-of-magnitude quantity together with a base unit of time, like a microsecond or a million years. In some cases, the order of magnitude may be implied (usually 1), like a "second" or "year". In other cases, the quantity name implies the base unit, like "century". In most ...

  7. JCB (heavy equipment manufacturer) - Wikipedia

    en.wikipedia.org/wiki/JCB_(heavy_equipment...

    In 1953, he developed JCB's first backhoe loader, and the JCB logo appeared for the first time. It was designed by Derby Media and advertising designer Leslie Smith. In 1957, the firm launched the "hydra-digga", incorporating the excavator and the major loader as a single all-purpose tool useful for the agricultural and construction industries. [5]

  8. International System of Units - Wikipedia

    en.wikipedia.org/wiki/International_System_of_Units

    The systems formalised the concept of a collection of related units called a coherent system of units. In a coherent system, base units combine to define derived units without extra factors. [4]: 2 For example, using meters per second is coherent in a system that uses meter for length and seconds for time, but kilometre per hour is not coherent.

  9. Metric time - Wikipedia

    en.wikipedia.org/wiki/Metric_time

    Metric time is the measure of time intervals using the metric system. The modern SI system defines the second as the base unit of time, and forms multiples and submultiples with metric prefixes such as kiloseconds and milliseconds. Other units of time – minute, hour, and day – are accepted for use with SI, but are not part of it