PC World Komputer 1997 February

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; AutoCAD unit definition file -- ACAD.UNT ; Version 1.2 for Release 12 (6/15/92) ; Basic SI units *meter(s),metre(s),m -1,0,1,0,-1,4.1214856408e11,0 *kilogram(s),kg 0,0,0,0,1,1.0977481015e30,0 *second(s),sec -2,0,1,0,-1,1.235590484e20,0 *ampere(s),amp(s) 2,1,-1,0,1,0.050513907838,0 *kelvin,k 2,0,0,-1,1,1.6863043358e-10,0 *candela,cd 4,0,-1,0,2,9.885226216e-8,0 ; Derived SI units *celsius,centigrade,c 2,0,0,-1,1,1.6863043358e-10,4.6061402932e-8 *rankine 2,0,0,-1,1,9.3683574212e-11,0 *fahrenheit 2,0,0,-1,1,9.3683574212e-11,4.30635285578e-8 *gram(s),gm,g =kg 0.001 *newton(s),n =meter kilogram / second^2 *pascal,pa =newton/meter^2 *joule(s) =newton meter ; Exponent synonyms *square,sq ^2 *cubic,cu ^3 ; Units of time *centur(y.ies) =100 year *day(s) =86400 second *decade(s) =10 year *fortnight(s) =14 day *hour(s),hr =3600 second *milleni(um.a) =1000 year *minute(s),min =60 second *sidereal_year(s) =365.25636 day *tropical_year(s) =365.24220 day *week(s),wk =604800 second *year(s),yr =365 day ; Units of length *Angstrom(s) =meter 1E-10 *astronomical_unit(s),au =meter 149597870000 *bolt(s) =meter 36.576 *cable(s) ; U.S. cable length =meter 219.456 *caliber =meter 0.000254 *centimeter(s),centimetre(s),cm(s) =meter 0.01 *chain(s) ; Gunther's chain length =meter 20.1168 *cubit(s) =meter 0.4572 *decimeter(s),decimetre(s),dm =meter 0.1 *dekameter(s),dekametre(s),dam =meter 10 *fathom(s),fath =meter 1.8288 *f(oot.eet),ft,' =meter 0.3048 *furlong(s),fur =meter 201.168 *gigameter(s),gigametre(s) =meter 1E9 *hand(s) =meter 0.1016 *hectometer(s),hectometre(s),hm =meter 100 *inch(es),in(s)," =meter 2.54E-2 *kilometer(s),kilometre(s),km =meter 1000 *league_nautical =meter 5556 *league_statute =meter 4828.032 *light_year(s) =meter 9.46053E15 *link(s) ; Gunther's link length =meter 0.201168 *micron(s) =meter 1E-6 *mil(s) =meter 2.54E-5 *mile_nautical,inm ; International Nautical Mile =meter 1852 *mile_statute,mile(s),mi =meter 1609.344 *millimeter(s),millimetre(s),mm(s) =meter 0.001 *millimicron(s) =meter 1E-9 *pace(s) =meter 0.762 *palm(s) =meter 0.0762 *parsec(s) =meter 3.085677E16 *perch(es) =meter 5.0292 *pica(s) =meter 0.0042175176 *point(s) =meter 0.0003514598 *rod(s),pole(s) =meter 5.0292 *rope(s) =meter 6.096 *skein(s) =meter 109.728 *span(s) =meter 0.2286 *survey_f(oot.eet) =0.3048006096 meter *yard(s),yd =meter 0.9144 ; Units of area *acre(s) =4046.85642 meter^2 *are(s) =100 meter^2 *barn(s) =1.0E-28 meter^2 *centare(s) =1 meter^2 *hectare(s) =10000 meter^2 *rood(s) =1011.7141 meter^2 *section(s) =2589988.096 meter^2 *township(s) =93239571.456 meter^2 ; Units of volume *barrel(s),bbl ; International Petroleum barrel =0.1589873 meter^3 *board_f(oot.eet),fbm =144 inch^3 *bushel(s),bu ; U.S. dry bushel =0.03523907 meter^3 *centiliter(s),cl =0.01 liter *cord(s) =3.6245734 meter^3 *cc =1e-6 meter^3 *decistere(s) =0.1 meter^3 *dekaliter(s),dal =10 liter *dekastere(s) =10 meter^3 *dram(s) ; U.S. fluid dram =3.6967162 cc *dry_pint(s) =0.551 liter *dry_quart(s) =1.101 liter *firkin(s) =34.06775 liter *gallon(s),gal ; U.S. fluid gallon =0.0037854118 meter^3 *gill(s) =118.29412 cc *hectoliter(s) =100 liter *hogshead(s),hhd =0.23848094 meter^3 *kilderkin(s) =0.08182957 meter^3 *kiloliter(s) =1.000028 meter^3 *liter(s) =0.001 meter^3 ; Redefined from 0.001000028m^3 in 1964 *milliliter(s),ml =0.001 liter *minim(s) =6.160979e-5 liter *fluid_ounce(s) =2.9573730e-5 meter^3 *peck(s) =8.809521 liter *pint(s),fluid_pint(s) =0.4731632 liter *pottle(s) =2.272980 liter *puncheon(s) =0.31797510 meter^3 *quart(s),qt,fluid_quart(s) =0.9463264 liter *register_ton(s) =2.8316847 meter^3 *seam(s) =290.9414 liter *stere(s) =1 meter^3 *tun(s) =252 gallon ; Units of mass *dalton(s) =1.66053e-27 kg *dyne(s) =kg/980665 *grain(s) =kg/15432.358 *hundredweight(s),cwt =45.359337 kg *long_ton(s) =1016.0469088 kg *ounce_weight,ounce(s),oz =kg/35.273962 *ounce_troy =kg/32.150737 *pennyweight(s),dwt,pwt =kg/643.01493 *poundal(s) =kg/70.931635 *pound(s),lb =0.45359237 kg *scruple(s) =kg/771.61792 *slug(s) =14.5939 kg *stone =14 pound *ton(s) =907.18474 kg *tonn(e.es) =1000 kg ; Units of frequency *hertz,hz =1/second ; Electromagnetic units *coulomb(s) =ampere second *farad(s) =coulomb/volt *henr(y.ies) =ohm second *ohm(s) =volt/ampere *siemens =1/ohm *tesla(s) =weber/meter^2 *volt(s),v =watt/ampere *watt(s),w =joule/second *weber(s) =volt second ; Circular measure *circle(s) 0,0,0,0,0,1,0 *radian(s) =circle/6.28318530717958648 *degree(s) =circle/360 *grad(s) =circle/400 *quadrant(s) =circle/4 ; Solid measure *sphere(s) 0,0,0,0,0,1,0 *hemisphere(s) =sphere/2 *steradian(s) =sphere/12.566371 ; Dimensionless prefixes ; Multiples *deca 0,0,0,0,0,10,0 *hecto 0,0,0,0,0,100,0 *kilo 0,0,0,0,0,1000,0 *mega 0,0,0,0,0,1e6,0 *giga 0,0,0,0,0,1e9,0 *tera 0,0,0,0,0,1e12,0 *peta 0,0,0,0,0,1e15,0 *exa 0,0,0,0,0,1e18,0 ; Fractions *deci 0,0,0,0,0,0.1,0 *centi 0,0,0,0,0,0,0.01,0 *milli 0,0,0,0,0,0.001,0 *micro 0,0,0,0,0,1e-6,0 *nano 0,0,0,0,0,1e-9,0 *pico 0,0,0,0,0,1e-12,0 *femto 0,0,0,0,0,1e-15,0 *atto 0,0,0,0,0,1e-18,0 ; Reference: CRC Handbook, 68th edition ('87-'88). ; Dimensions of common units in terms of fundamental constants ; Measurement C E H K M Notes ; Length -1 1 -1 ; Mass 1 ; Time -2 1 -1 time / C ; Current 2 1 -1 1 E / time ; Temperature 2 -1 1 H / (K time) ; Luminous intensity 4 -1 2 Units of power over ; solid angle, a ; dimensionless value.