Search results
Results from the WOW.Com Content Network
A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times, a span was considered to be half a cubit. Sometimes the distinction is made between the great span or full span (thumb to little finger) and little span or short span (thumb to index finger, or index finger to little ...
The ancient Egyptian royal cubit (meh niswt) is the earliest attested standard measure.Cubit rods were used for the measurement of length.A number of these rods have survived: two are known from the tomb of Maya, the treasurer of the 18th dynasty pharaoh Tutankhamun, in Saqqara; another was found in the tomb of Kha in Thebes.
The measurement of time is unique in SI in that while the second is the base unit, and measurements of time smaller than a second use prefixed units smaller than a second (e.g. microsecond, nanosecond, etc.), measurements larger than a second instead use traditional divisions, including the sexagesimal-based minute and hour as well as the less ...
Bamboo – also known as the Burmese league; Barleycorn – one-third of an inch. Cana – a unit of length used in the former Crown of Aragon, at least in Catalonia. It is around the same value as the vara of Aragon, Spain, and Portugal. [3] Cubit [4] Ell; Girah; Guz; Hat'h; Jow; Lachter – a unit of length once used in the mining industry in ...
The Jiffy is the amount of time light takes to travel one femtometre (about the diameter of a nucleon). The Planck time is the time that light takes to travel one Planck length. The TU (for time unit) is a unit of time defined as 1024 μs for use in engineering. The svedberg is a time unit used for sedimentation rates (usually
Change of acceleration per unit time: the third time derivative of position m/s 3: L T −3: vector Jounce (or snap) s →: Change of jerk per unit time: the fourth time derivative of position m/s 4: L T −4: vector Magnetic field strength: H: Strength of a magnetic field A/m L −1 I: vector field Magnetic flux density: B: Measure for the ...
This is a list of common physical constants and variables, and their notations. ... time: second (s) four-velocity: meter per second (m/s) potential energy ...
The palm was not a major unit in ancient Mesopotamia but appeared in ancient Israel as the tefah, [7] tepah, [8] or topah [8] (Hebrew: טפח, lit. "a spread"). [9] Scholars were long uncertain as to whether this was reckoned using the Egyptian or Babylonian cubit, [7] but now believe it to have approximated the Egyptian "Greek cubit", giving a value for the palm of about 74 mm or 2.9 in. [8]