![]() ![]() The nanoradian equals about 0.208 533 milliarcsecond (mas). nanoradian (nrad) a unit of angle measure equal to 10 -9 radian. Solar radiation and the tiny forces exerted within living cells. nanonewton (nN) a metric unit of force equal to 10 -9 newton (see below) or 0.1 nanon an informal name for the nanometer. This unit is common in biochemistry, since a mole of a large organic moleculeĬan be quite a large amount. nanomole a unit of amount of substance equal to 10 -9 mole. One nanometer equalsĠ.001 micrometer or 10 angstroms. Introduced inġ951, the nanometer replaced the millimicron. nanometer (nm) a metric unit of distance equal to 10 -9 meter. nanoliter (nl or nL) a metric unit of volume equal to 10 -9 liter or 0.001 cubic millimeter. This unit often occurs in the study of inhalation exposures. nanogray (nGy) a unit of radiation dose equal to 10 -9 gray or 0.1 micro rad nanogram (ng) a metric unit of mass equal to 10 -9 gram, or one millionth ofĪ milligram. This unit was previously called the millimicrofarad (m♟). nanofarad (nF) a common metric unit of electric capacitance equal to 10 -9 farad. Radioactivity of 37 atomic disintegrations per second. nanocurie (nCi) a common unit of radioactivity. Is frequently used in meteorology to express the partial pressure of atmospheric nanobar (nb or nbar) a CGS unit of pressure equal to 10 -9īar or 0.1 milli pascal (mPa). nanoacre a humorous unit of area on a computer chip, equal to one billionth of anĪcre or about 4.047 square millimeters. The prefix comesįrom the Greek word nanos, dwarf. nano- (n-) a metric prefix meaning 10 -9, or one billionth. The nail is equivalent to 1/16 yard,ġ/4 span, 2.25 inches, or exactly 5.715 centimeters. The length of the last two joints (including the fingernail) of the middleįinger. Like the ell, the nail was used for measuring cloth traditionally, it represented ![]() nail an old English unit of length equal to 1/20 ell. One that is, an index of refraction n is equivalent to ( n -ġ) x 10 6 N units. Of the index in N units is the number of millionths by which the index exceeds Of refraction of the atmosphere is only slightly greater than 1. Units: N N N a unit of refractive index sometimes used in atmospheric science. ![]()
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