Search results
Results from the WOW.Com Content Network
Joshua’s Law is a Georgia state law enacted in 2007 [1] changing the driver's license requirements for teen drivers. [2] A teen driver must meet the new requirements to obtain a Georgia driver’s license. The law was named after Joshua Brown, who died in an accident in 2003. [3]
Eduard Sievers developed a theory of the meter of Anglo-Saxon alliterative verse, which he published in his 1893 Altgermanische Metrik. [1] Widely used by scholars, it was in particular extended by Alan Joseph Bliss. [2] Sievers' system is a primarily method of categorization rather than a full theory of meter.
The Stère (1 cubic meter) and Quintal (100,000 grams) are no longer officially part of the metric system. The Myriameter (10,000 meters) and Myriagram (10,000 grams) were dropped as unnecessary units.
The gal (Gal) is a unit of acceleration equal to 1 cm/s 2. [3] The dyne (dyn) is a unit of force equal to 1 g⋅cm⋅s −2 (10 μN). [3] The barye (Ba) is a unit of pressure equal to 1 dyn⋅cm −2 (100 mPa). The erg (erg) is a unit of energy equal to 1 dyn⋅cm (100 nJ). [3] The poise (P) is a unit of dynamic viscosity equal to 1 Ba⋅s (100 ...
A unit of measurement, or unit of measure, is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. [1] Any other quantity of that kind can be expressed as a multiple of the unit of measurement. [2] For example, a length is a physical quantity.
This definition was reworded in 2019: [3] The metre, symbol m, is the SI unit of length. It is defined by taking the fixed numerical value of the speed of light in vacuum c to be 299 792 458 when expressed in the unit m⋅s −1, where the second is defined in terms of the caesium frequency Δν Cs.
A unit of measurement that applies to money is called a unit of account in economics and unit of measure in accounting. [5] This is normally a currency issued by a country or a fraction thereof; for instance, the US dollar and US cent (1 ⁄ 100 of a dollar), or the euro and euro cent.
One difference between the Gaussian and SI systems is in the factor 4π in various formulas that relate the quantities that they define. With SI electromagnetic units, called rationalized, [3] [4] Maxwell's equations have no explicit factors of 4π in the formulae, whereas the inverse-square force laws – Coulomb's law and the Biot–Savart law – do have a factor of 4π attached to the r 2.