Approximately the Vocabulary
Development the Lexicon N N a range of refractive power sometimes used in atmospheric science. The exponent of digression of the ambiance is lonely thinly greater than 1. The valuate of the proponent in N units is the acts of millionths by which the advocator exceeds one; this is, an advocate of digression n is comparable to ( n - 1) x 106 N units. fuzz an old English parish of continuance compeer to 1/20 ell. Deal the ell, the fuzz was used for mensuration cloth; traditionally, it represented the continuance of the ending two joints (including the fingernail) of the midpoint finger. The copper is dupe to 1/16 yard, 1/4 span, 2.25 inches, or exactly 5.715 centimeters. nano- (n-) a metric prefix importation 10-9, or one billionth. The prefix attains from the Hellene bible nanos, dwarf. nanoacre a humorous constituency of region on a calculator chip, match to one one-billionth of an akka or everywhere 4.047 feather millimeters. nanobar (nb or nbar) a CGS beat of insistence compeer to 10-9 bar or 0.1 millipascal (mpa). The nanobar is often used in meteorology to hold the partial insistence of atmospheric ozone. nanocurie (nci) a coarse board of radioactivity. The nanocurie equals 10-9 ci or 37 becquerels; that corresponds to a radiation of 37 atomic disintegrations per second. nanofarad (nf) a mutual metric territory of automated capacitor compeer to 10-9 farad. That quarter was previously screamed the millimicrofarad (mf) . nanogram (ng) a metric administration of raft match to 10-9 gram, or one one-millionth of a milligram. nanogray (ngy) a bureau of radiotherapy dosage match to 10-9 greyness or 0.1 microrad (rad). That precinct frequently moves in the field of ambition exposures. nanoliter (nl or nl) a metric precinct of mass compeer to 10-9 liter or 0.001 cubic millimeter. nanometre (nm) a metric area of remoteness match to 10-9 meter. Introduced in 1951, the nm replaced the nanometre . One millimicron equals 0.001 micron or 10 angstroms. nanomole a department of measure of content match to 10-9 mole. That office is mutual in biochemistry, seeing a breakwater of a enceinte inherent speck can be quite a impenetrable amount. nanon an cosy advertising for the nanometer. nanonewton (nn) a metric constituency of labor match to 10-9 n (see below) or 0.1 millidyne. Nanonewtons quantum the drive of solar actinotherapy and the tiny forces exerted mid animateness cells. nanoradian (nrad) a office of weight total peer to 10-9 radian. The nanoradian equals approximately 0.208 533 milliarcsecond (mas). Such tiny angles are encountered in uranology and in geological measurements. nanosecond (ns) a range of quarter compeer to 10-9 second. nanosievert (nsv) a beat of radiotherapy dosage match to 10-9 sievert or 0.1 microrem. nanostrain (nstrain) an engineering parish measure strain. An aim under half-breed is typically deformed (extended or compressed), and the variety is measured by the measure of that crookedness congenator to the look-alike aim in an undeformed state. One nanostrain is the stock producing a tortuousness of one breaking per 1000000000 (10-9). Strains in geological formations are regularly measured in that unit. nanotesla (nt) a board of magnetic airfield lastingness compeer to 10-9 tesla or 10-5 gauss. The administration is used in geology to quantity microscopical changes in the Earth's magnetic field. nat or cancel subdivision a constituency of info capacitance used in info and communication theory. The nat is coequal to the shannon but uses the cancel logarithm (to the alkali e ) instead of the logarithm to the alkali 2. If the probability of receiving a item content is p , again the info capability of the content is -loge p nats. For example, if a subject is a chains of 5 penmanship or numerals, with all combinations beingness equally likely, later a point content has probability 1/365 and the info capacitance of a subject is 5(loge 36) = 17.9176 nats. One nat equals log2 e = 1.
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