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  2. Gal (unit) - Wikipedia

    en.wikipedia.org/wiki/Gal_(unit)

    The gal (symbol: Gal), sometimes called galileo after Galileo Galilei, is a unit of acceleration typically used in precision gravimetry. [2] [3] [4] The gal is defined as 1 centimeter per second squared (1 cm/s 2). The milligal (mGal) and microgal (μGal) are respectively one thousandth and one millionth of a gal.

  3. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    A number of different units (some only of historical interest) are shown and expressed in terms of the corresponding SI unit. Conversions between units in the metric system are defined by their prefixes (for example, 1 kilogram = 1000 grams, 1 milligram = 0.001 grams) and are thus not listed in this article.

  4. Gravimetry - Wikipedia

    en.wikipedia.org/wiki/Gravimetry

    Other units include the cgs gal (sometimes known as a galileo, in either case with symbol Gal), which equals 1 centimetre per second squared, and the g (g n), equal to 9.80665 m/s 2. The value of the g n is defined as approximately equal to the acceleration due to gravity at the Earth's surface , although the actual acceleration varies slightly ...

  5. Magnesium aluminide - Wikipedia

    en.wikipedia.org/wiki/Magnesium_aluminide

    MgAl has also been investigated for use as a reactant to produce metal hydrides in hydrogen storage technology. Like many intermetallics, MgAl compounds often have unusual stoichiometries with large and complex unit cells. -Mg 2 Al 3 is a complex metallic alloy which crystallizes in cubic unit cell with 1168 atoms per cell.

  6. Gallon - Wikipedia

    en.wikipedia.org/wiki/Gallon

    There were a number of systems of liquid measurements in the United Kingdom prior to the 19th century. [3]Winchester or corn gallon was 272 in 3 (157 imp fl oz; 4,460 mL) (1697 act 8 & 9 Will. 3.

  7. Gravity gradiometry - Wikipedia

    en.wikipedia.org/wiki/Gravity_gradiometry

    The unit of gravity gradient is the eotvos (abbreviated as E), which is equivalent to 10 −9 s −2 (or 10 −4 mGal/m). A person walking past at a distance of 2 metres would provide a gravity gradient signal approximately one E. Mountains can give signals of several hundred Eotvos.

  8. Mathematical table - Wikipedia

    en.wikipedia.org/wiki/Mathematical_table

    Mathematical tables are lists of numbers showing the results of a calculation with varying arguments.Trigonometric tables were used in ancient Greece and India for applications to astronomy and celestial navigation, and continued to be widely used until electronic calculators became cheap and plentiful in the 1970s, in order to simplify and drastically speed up computation.

  9. Gal's accurate tables - Wikipedia

    en.wikipedia.org/wiki/Gal's_accurate_tables

    Gal's accurate tables is a method devised by Shmuel Gal to provide accurate values of special functions using a lookup table and interpolation. It is a fast and efficient method for generating values of functions like the exponential or the trigonometric functions to within last-bit accuracy for almost all argument values without using extended ...