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  1. ; Unit conversion factors for use with Visio IntelliCAD
  2. ;
  3. ; icad.unt
  4. ; Release 1.0
  5. ;
  6. ; .............................................................................
  7. ;
  8. ; Copyright (c) 1998 by Visio Corporation.  All rights reserved.
  9. ;
  10. ; The Software is subject to the license agreement that accompanies
  11. ; or is included with the Software, which specifies the permitted
  12. ; and prohibited uses of the Software.  Any unauthorized duplication
  13. ; or use of Visio Corporation Software, in whole or in part, in print,
  14. ; or in any other storage and retrieval system is prohibited.
  15. ;
  16. ; To the maximum extent permitted by applicable law, Visio Corporation
  17. ; and its suppliers disclaim any and all warranties and conditions,
  18. ; either express or implied, including, without limitation, implied
  19. ; warranties of merchantability, fitness for a particular purpose,
  20. ; title, and non-infringement, and those arising out of usage of trade
  21. ; or course of dealing, concerning these materials.  These materials
  22. ; are provided "as is" without warranty of any kind.
  23. ;
  24. ; .............................................................................
  25. ;
  26. ; Sources:
  27. ;
  28. ;   "CRC Handbook of Chemistry and Physics, 52nd Edition 1971-1972",(c) 1971
  29. ;   "Physics, Parts I and II", by David Halliday and Robert Resnick (c) 1966
  30. :   "The Astronomical Almanac, 1992", U.S. Government Printing Office (c) 1991
  31. ;
  32. ; .............................................................................
  33. ;
  34. ; Fundamental units are defined in terms of five fundamental physical
  35. ; constants, expressed in AI units.  From the CRC Handbook,
  36. ; pp. F189-F190:
  37. ;
  38. ;   c : The vacuum speed of light
  39. ;         2.9979250E+08 m/sec
  40. ;
  41. ;   e : Electron charge
  42. ;         1.6021917E-19 C (coulombs)
  43. ;
  44. ;   h : The Planck Constant
  45. ;         6.626196E-34  kg-m^2/sec
  46. ;
  47. ;   k : The Boltzmann Constant
  48. ;         1.380622E-23 kg-m^2/sec^2-K (K=degrees kelvin)
  49. ;
  50. ;   m : Electron rest mass (kg)
  51. ;         9.109558E-31 kg
  52. ;
  53. ; A line defining a unit in fundamental form has the form
  54. ;
  55. ;   x1,x2,x3,x4,x5,f,a
  56. ;
  57. ; The "x" terms are (integer) exponents of the five fundamental
  58. ; constants; "f" is a factor; "a" is an additive term (used only in
  59. ; temperature).  They define a value as follows (where ^ denotes
  60. ; exponentiation and * multiplication):  If we have U of the units
  61. ; being defined, the AI equivalent is
  62. ;
  63. ;   (c^x1 * e^x2 * h^x3 * k^x4 * m^x5) * (U*f + a)
  64. ;
  65. ; Notice that the factor composed of the fundamental constants defines
  66. ; a "fundamental unit" that is some multiple of the corresponding
  67. ; AI unit.  If we have U of the units we're defining, we therefore
  68. ; have U*f+a "fundamental units".  To convert this to some other unit,
  69. ; we seek U', where U'*f'+a' = U*f+a, or
  70. ;
  71. ;   U' = (U*f+a-a')/f'
  72. ;
  73. ; For all but temperature, a and a' are zero reducing this to
  74. ;
  75. ;   U' = U*f/f'
  76. ;
  77. ; Because of the way we're combining the fundamental constants to
  78. ; produce a specific type of unit via dimensional analysis (length,
  79. ; mass, speed, etc.), all fundamental definitions of the same type have
  80. ; the same set of exponents (x1-x5).  Here are the formats of some of
  81. ; the basic types (along with their "fundamental units" in AI units,
  82. ; using the CRC values):
  83. ;
  84. ;   Length:
  85. ;     -1, 0, 1, 0,-1,f,0 (2.426309557165E-12 m)
  86. ;   Mass:
  87. ;      0, 0, 0, 0, 1,f,0 (9.109558E-31 kg)
  88. ;   Time:
  89. ;     -2, 0, 1, 0,-1,f,0 (8.0932963872178E-21 sec)
  90. ;   Temperature:
  91. ;      2, 0, 0,-1, 1,f,a (5.9301276689232E+09 K)
  92. ;   Area:
  93. ;     -2, 0, 2, 0,-2,f,0 (5.8869780671902E-24 m^2)
  94. ;   Volume:
  95. ;     -3, 0, 3, 0,-3,f,0 (1.4283631147244E-35 m^3)
  96. ;   Speed:
  97. ;      1, 0, 0, 0, 0,f,0 (2.9979250E+08 m/sec)
  98. ;   Acceleration:
  99. ;      3, 0,-1, 0, 1,f,0 (3.7042076016576E+28 m/sec^2)
  100. ;   Force:
  101. ;      3, 0,-1, 0, 2,f,0 (3.374369399134E-02 kg-m/sec^2 (newton))
  102. ;   Pressure:
  103. ;      5, 0,-3, 0, 4,f,0 (5.7319211327461E+21 kg/sec^2-m (N/m^2))
  104. ;   Energy:
  105. ;      2, 0, 0, 0, 1,f,0 (8.1872647225241E-14 kg-m^2/sec^2 (joule))
  106. ;   Power:
  107. ;      4, 0,-1, 0, 2,f,0 (1.0116106380899E+07 kg-m2/sec^3 (watt))
  108. ;   Electric charge:
  109. ;      0, 1, 0, 0, 0,f,0 (1.6021917E-19 C (coulomb))
  110. ;   Electric current:
  111. ;      2, 1,-1, 0, 1,f,0 (1.9796528180167E+01 C/sec (amp))
  112. ;   Electromotive force:
  113. ;      2,-1, 0, 0, 1,f,0 (5.1100406540142E+05 kg-m^2/sec^2-C (volt))
  114. ;   Electric resistance:
  115. ;      0,-2, 1, 0, 0,f,0 (2.5812812264393E+04 kg-m^2/sec-C^2 (ohm))
  116. ;   Electric capacitance:
  117. ;     -2, 2, 0, 0,-1,f,0 (3.1353795566018E-25 sec^2-C^2/kg-m^2 (farad))
  118. ;   Electric inductance:
  119. ;     -2,-2, 2, 0,-1,f,0 (2.0891074024335E-16 kg-m^2/C^2 (henry))
  120. ;   Magnetic flux:
  121. ;      0,-1, 1, 0, 0,f,0 (4.1357073563669E-15 kg-m^2/sec-C (weber))
  122. ;   Magnetic induction:
  123. ;      2,-1,-1, 0, 2,f,0 (7.0251788084898E+8  kg/sec-C (tesla))
  124. ;   Dimensionless multiplier:
  125. ;      0, 0, 0, 0, 0,f,0 (No units)
  126. ;
  127. ; Excluding temperatures, we can combine these to produce composite
  128. ; units as follows:
  129. ;
  130. ;   To multiply any two of these, you add the exponents (x1-x5) and
  131. ;   multiply the f's.
  132. ;
  133. ;   To divide one by another, you subtract the second's exponents from
  134. ;   the first's and divide the first f by the second.
  135. ;
  136. ;   To raise one to a power, you multiply the exponents (x1-x5) by the
  137. ;   power and raise f to the power.
  138. ;
  139. ; In acad.unt, the "fundamental units" are those actually produced by
  140. ; combining the fundamental constants.  For example, the fundamental
  141. ; unit of length is h/(mc), which is 2.426309557165E-12 m, and we
  142. ; therefore need mc/h of these (4.1214856408036E+11) to make one meter.
  143. ; (This changes, of course, whenever one of the fundamental constant
  144. ; values is refined.  But, as long as we use the same values for
  145. ; source and destination units in the conversion, this doesn't matter.)
  146. ;
  147. ; Since we're only using these "fundamental units" as temporary
  148. ; intermediates for comparing different units of like type, why not
  149. ; use the SI units themselves as the "fundamental units"?  That's what
  150. ; icad.unt does in this file.  So, instead of
  151. ;
  152. ;   *meter(s),metre(s),m
  153. ;   -1,0,1,0,-1,4.1214856408036E+11,0
  154. ;
  155. ; we have
  156. ;
  157. ;   *meter(s),metre(s),m
  158. ;   -1,0,1,0,-1,1.0,0
  159. ;
  160. ; h/(mc) is indeed a length, but a very cumbersome one compared to
  161. ; a meter.
  162. ;
  163. ; The exponents remain the same, but their function is purely that
  164. ; of unit type-identifiers, making sure the dimensional analysis
  165. ; works out.  (Meters, Kilograms, Seconds, and Kelvins could be used
  166. ; in the same manner, but we keep the "c,e,h,k,m" system to maintain
  167. ; compatibility with ACAD.)
  168. ;
  169. ; .............................................................................
  170. ;
  171. ;     File format information:
  172. ;
  173. ; A semicolon begins a comment that continues through the end of the line.
  174. ;
  175. ; Blank lines are ignored.
  176. ;
  177. ; A unit definition has two lines:
  178. ;
  179. ;   The name(s) of the unit:
  180. ;
  181. ;     The line must begin with an asterisk.  Synonyms are separated by
  182. ;     commas.  Each synonym can have the form
  183. ;
  184. ;       prefix(singularsuffix.pluralsuffix)
  185. ;
  186. ;     The "singularsuffix." part can be omitted; so can the entire
  187. ;     parenthetical singular/plural item.
  188. ;
  189. ;   The definition:
  190. ;
  191. ;     One of the three following formats:
  192. ;
  193. ;       Fundamental format:
  194. ;
  195. ;         The "x1,x2,x3,x4,x5,f,a" format discussed earlier.
  196. ;
  197. ;       Derived format:
  198. ;
  199. ;         This type must begin with an equals sign (=), followed by
  200. ;         literal constants and the names of other defined units and
  201. ;         any of the math operators * (multiplication), / (division),
  202. ;         and ^ (exponentiation).  Multiplication is implied if no
  203. ;         operator is supplied between non-operator items.  Any
  204. ;         derived units used in the formula must of course be
  205. ;         resolvable to fundamental form using other definitions in
  206. ;         this file (in a non-recursive manner -- no infinite
  207. ;         definition loops!).
  208. ;
  209. ;         It seems ACAD only allows ONE division on a definition
  210. ;         line (or in a string passed to cvunit) -- probably because
  211. ;         that's how scientists generally write units: a bunch of units
  212. ;         over another bunch of units -- one division.  For example,
  213. ;         an acceleration in feet per second per minute must
  214. ;         be given as "ft / sec min", not "ft / sec / min".
  215. ;
  216. ;         The units are combined on each side of the slash,
  217. ;         and the division is performed last.
  218. ;
  219. ;         See acad.unt for examples of this format.  Icad.unt specifies
  220. ;         all of it's definitions in "fundamental" format.  This
  221. ;         allows cvunit to process this file faster, with fewer
  222. ;         calculations (and therefore smaller rounding errors).
  223. ;         Since icad.unt uses SI units as the fundamental units,
  224. ;         the file is fairly "human-readable": the "f" terms are
  225. ;         the SI equivalents -- not some collection of cumbersome
  226. ;         physical constants.
  227. ;
  228. ;       Exponent synonym definition format:
  229. ;
  230. ;         Of the form
  231. ;
  232. ;           *square,sq
  233. ;           ^2
  234. ;
  235. ;         Note there's no equals sign ("^2", not "=^2").
  236. ;
  237. ;         ACAD defines this one and "*cubic,cu", but doesn't use
  238. ;         them in acad.unt.  We follow suit.
  239. ;
  240. ;         If you DO use them, it seems they must appear BEFORE the
  241. ;         item to operate on, not after ("sq ft", not "ft sq").
  242. ;         However, if you use exponents directly, you must put them
  243. ;         AFTER the item ("ft^2").  Therefore, "sq" is not a direct
  244. ;         synonym for "^2".
  245. ;
  246. ;         We recommend using an exponent directly -- right up
  247. ;         against the item it follows (like "meter^3").
  248. ;
  249. ; .............................................................................
  250.  
  251.  
  252. ; Exponent definitions (See notes above.  They're NOT substitutions.)
  253.  
  254. *square,sq
  255. ^2
  256.  
  257. *cubic,cu
  258. ^3
  259.  
  260.  
  261. ; The primary SI units:
  262.  
  263. *meter(s),metre(s),m,centare(s)
  264. -1, 0, 1, 0,-1,1.0,0.0
  265.  
  266. *kilogram(s),kg
  267.  0, 0, 0, 0, 1,1.0,0.0
  268.  
  269. *second(s),sec
  270. -2, 0, 1, 0,-1,1.0,0.0
  271.  
  272. *kelvin(s),k
  273.  2, 0, 0,-1, 1,1.0,0.0
  274.  
  275. *ampere(s),amp(s)
  276.  2, 1,-1, 0, 1,1.0,0.0
  277.  
  278. *candela,cd             ; Careful with this one.  This file (as shipped)
  279.  4, 0,-1, 0, 2,1.0,0.0  ; does not specify any other luminous intensity
  280.                         ; units.  If you add any, keep the exponents (x1-x5)
  281.                         ; the same.  Enter the equivalent number of
  282.                         ; candelas for f -- or replace the 1.0 in the
  283.                         ; candela definition with the true MKS equivalent
  284.                         ; and then enter others in terms of that MKS value.
  285.                         ;
  286.                         ; As it stands, THIS candela is equivalent to
  287.                         ; a watt -- which I doubt is true.  (acad.unt
  288.                         ; has the same problem.)
  289.  
  290. ; Length:
  291.  
  292. *angstrom(s)
  293. -1, 0, 1, 0,-1,1.0E-10,0.0
  294.  
  295. *astronomical_unit(s),au
  296. -1, 0, 1, 0,-1,1.49597870E+11,0.0
  297.  
  298. *bolt(s)
  299. -1, 0, 1, 0,-1,36.576,0.0
  300.  
  301. *cable(s)
  302. -1, 0, 1, 0,-1,219.456,0.0
  303.  
  304. *centimeter(s),centimetre(s),cm
  305. -1, 0, 1, 0,-1,0.01,0.0
  306.  
  307. *chain(s) ; Gunter's
  308. -1, 0, 1, 0,-1,20.1168,0.0
  309.  
  310. *cubit(s)
  311. -1, 0, 1, 0,-1,0.4572,0.0
  312.  
  313. *decimeter(s),decimetre(s),dm
  314. -1, 0, 1, 0,-1,0.1,0.0
  315.  
  316. *dekameter(s),decameter(s),dekametre(s),decametre(s),dam
  317. -1, 0, 1, 0,-1,10.0,0.0
  318.  
  319. *fathom(s),fath
  320. -1, 0, 1, 0,-1,1.8288,0.0
  321.  
  322. *foot,feet,ft,'
  323. -1, 0, 1, 0,-1,0.3048,0.0
  324.  
  325. *furlong(s),fur
  326. -1, 0, 1, 0,-1,201.168,0.0
  327.  
  328. *gigameter(s),gigametre(s)
  329. -1, 0, 1, 0,-1,1.0E+09,0.0
  330.  
  331. *hand(s)
  332. -1, 0, 1, 0,-1,0.1016,0.0
  333.  
  334. *hectometer(s),hectometre(s),hm
  335. -1, 0, 1, 0,-1,100.0,0.0
  336.  
  337. *inch(es),in(s),"
  338. -1, 0, 1, 0,-1,0.0254,0.0
  339.  
  340. *kilometer(s),kilometre(s),km
  341. -1, 0, 1, 0,-1,1000.0,0.0
  342.  
  343. *league_nautical  ;  International
  344. -1, 0, 1, 0,-1,5556.0,0.0
  345.  
  346. *league_statute
  347. -1, 0, 1, 0,-1,4828.032,0.0
  348.  
  349. *lightyear(s),ly  ;  Using a tropical year
  350. -1, 0, 1, 0,-1,9.4605281774268E+15,0.0
  351.  
  352. *link(s)  ;  Gunter's
  353. -1, 0, 1, 0,-1,0.201168,0.0
  354.  
  355. *micron(s)
  356. -1, 0, 1, 0,-1,0.000001,0.0
  357.  
  358. *mil(s)
  359. -1, 0, 1, 0,-1,0.0000254,0.0
  360.  
  361. *mile_nautical,inm  ;  International
  362. -1, 0, 1, 0,-1,1852.0,0.0
  363.  
  364. *mile(s),mile_statute,mi
  365. -1, 0, 1, 0,-1,1609.344,0.0
  366.  
  367. *millimeter(s),millimetre(s),mm
  368. -1, 0, 1, 0,-1,0.001,0.0
  369.  
  370. *millimicro(s),nanometer(s),nanometre(s)
  371. -1, 0, 1, 0,-1,1.0E-09,0.0
  372.  
  373. *pace(s)
  374. -1, 0, 1, 0,-1,0.762,0.0
  375.  
  376. *palm(s)
  377. -1, 0, 1, 0,-1,0.0762,0.0
  378.  
  379. *parsec(s),pc  ;  From definition and the value of the astronomical unit.
  380. -1, 0, 1, 0,-1,3.0856775670468E+16,0.0
  381.  
  382. *pica(s)
  383. -1, 0, 1, 0,-1,0.0042175176,0.0
  384.  
  385. *point(s)
  386. -1, 0, 1, 0,-1,0.0003514598,0.0
  387.  
  388. *rod(s)
  389. -1, 0, 1, 0,-1,5.0292,0.0
  390.  
  391. *rope(s)  ;  British
  392. -1, 0, 1, 0,-1,6.096,0.0
  393.  
  394. *skein(s)
  395. -1, 0, 1, 0,-1,109.728,0.0
  396.  
  397. *span(s)
  398. -1, 0, 1, 0,-1,0.2286,0.0
  399.  
  400. *survey_foot,survey_feet  ;  Based on the old standard of exactly 39.37 in/m.
  401. -1, 0, 1, 0,-1,0.30480060960122,0.0
  402.  
  403. *yard(s),yd
  404. -1, 0, 1, 0,-1,0.9144,0.0
  405.  
  406.  
  407. ; Mass:
  408.  
  409. *cental(s)  ;  British
  410.  0, 0, 0, 0, 1,45.359237,0.0
  411.  
  412. *dalton(s)  ;  Chemistry
  413.  0, 0, 0, 0, 1,1.66024E-27,0.0
  414.  
  415. *grain(s)  ;  (1/480 ounce_troy)
  416.  0, 0, 0, 0, 1,6.4798929166666666666E-05,0.0
  417.  
  418. *gram(s),gm,g
  419.  0, 0, 0, 0, 1,0.001,0.0
  420.  
  421. *hundredweight(s)  ;  Short (100 lb avdp)
  422.  0, 0, 0, 0, 1,45.359237,0.0
  423.  
  424. *long_ton(s)  ;  (2240 lb avdp)
  425.  0, 0, 0, 0, 1,1016.0469088,0.0
  426.  
  427. *microgram(s)
  428.  0, 0, 0, 0, 1,1.0E-09,0.0
  429.  
  430. *milligram(s),mg
  431.  0, 0, 0, 0, 1,0.000001,0.0
  432.  
  433. *ounce_troy
  434.  0, 0, 0, 0, 1,0.031103486,0.0
  435.  
  436. *ounce_weight,ounce(s),oz
  437.  0, 0, 0, 0, 1,0.028349523125,0.0
  438.  
  439. *pennyweight(s),dwt,pwt  ;  (1/20 ounce_troy)
  440.  0, 0, 0, 0, 1,0.0015551743,0.0
  441.  
  442. *pound(s),lb(s) ; avdp
  443.  0, 0, 0, 0, 1,0.45359237,0.0
  444.  
  445. *poundal(s)
  446.  0, 0, 0, 0, 1,0.01409808,0.0
  447.  
  448. *scruple(s)  ;  Apothecary (1/24 ounce_troy)
  449.  0, 0, 0, 0, 1,0.0012959785833333333333,0.0
  450.  
  451. *slug(s)
  452.  0, 0, 0, 0, 1,14.5939,0.0
  453.  
  454. *stone(s)  ;  British
  455.  0, 0, 0, 0, 1,6.35029318,0.0
  456.  
  457. *ton_metric,tonne(s)
  458.  0, 0, 0, 0, 1,1000.0,0.0
  459.  
  460. *ton_short,ton(s)
  461.  0, 0, 0, 0, 1,907.18474,0.0
  462.  
  463.  
  464. ; Time:
  465.  
  466. *calendar_year(s),year(s),yr
  467. -2, 0, 1, 0,-1,31536000.0,0.0  ; Calendar -- 365 days
  468.                                ; One could argue whether "year" should be
  469.                                ; the calendar one or the tropical.
  470.                                ; We follow ACAD for compatibility.
  471.  
  472. *century,centuries
  473. -2, 0, 1, 0,-1,3153600000.0,0.0  ; Calendar -- 36500 days
  474.  
  475. *day(s)
  476. -2, 0, 1, 0,-1,86400.0,0.0
  477.  
  478. *decade(s)
  479. -2, 0, 1, 0,-1,315360000.0,0.0  ; Calendar -- 3650 days
  480.  
  481. *fortnight(s)
  482. -2, 0, 1, 0,-1,1209600.0,0.0
  483.  
  484. *hour(s),hr(s)
  485. -2, 0, 1, 0,-1,3600.0,0.0
  486.  
  487. *microsecond(s)
  488. -2, 0, 1, 0,-1,0.000001,0.0
  489.  
  490. *millennium,millennia,millenium,millenia
  491. -2, 0, 1, 0,-1,31536000000.0,0.0  ; Calendar -- 365000 days
  492.  
  493. *millisecond(s),msec
  494. -2, 0, 1, 0,-1,0.001,0.0
  495.  
  496. *minute(s),min(s)
  497. -2, 0, 1, 0,-1,60.0,0.0
  498.  
  499. *nanosecond(s),nsec
  500. -2, 0, 1, 0,-1,1.0E-09,0.0
  501.  
  502. *sidereal_year(s)
  503. -2, 0, 1, 0,-1,31558149.504,0.0
  504.  
  505. *tropical_year(s)
  506. -2, 0, 1, 0,-1,31556925.216,0.0
  507.  
  508. *week(s),wk
  509. -2, 0, 1, 0,-1,604800.0,0.0
  510.  
  511.  
  512. ; Frequency
  513.  
  514. *hertz,hz
  515.  2, 0,-1, 0, 1,1.0,0.0
  516.  
  517.  
  518. ; Area:
  519.  
  520. *acre(s)
  521. -2, 0, 2, 0,-2,4046.8564,0.0
  522.  
  523. *are(s)
  524. -2, 0, 2, 0,-2,100.0,0.0
  525.  
  526. *barn(s)
  527. -2, 0, 2, 0,-2,1.0E-28,0.0
  528.  
  529. *hectare(s)
  530. -2, 0, 2, 0,-2,10000.0,0.0
  531.  
  532. *rood(s)  ;  British
  533. -2, 0, 2, 0,-2,1011.7141,0.0
  534.  
  535. *township(s)
  536. -2, 0, 2, 0,-2,93239571.456,0.0
  537.  
  538.  
  539. ; Volume:
  540. ;
  541. ;   Note: The US fluid values quart, pint, cup, ounce, and dram
  542. ;   are based on integral subdivisions of the gallon.  (The CRC
  543. ;   reference has an internal inconsistency between pint and ounce.)
  544. ;
  545. ;   The dry equivalents are also based on the subdivided gallon.
  546.  
  547. *barrel(s)  ;  US petroleum
  548. -3, 0, 3, 0,-3,0.1589872956,0.0
  549.  
  550. *board_foot,board_feet
  551. -3, 0, 3, 0,-3,0.002359737216,0.0
  552.  
  553. *british_gallon(s)
  554. -3, 0, 3, 0,-3,0.004546087,0.0
  555.  
  556. *bushel(s),bu  ;  US
  557. -3, 0, 3, 0,-3,0.03523907,0.0
  558.  
  559. *butt(s)  ;  British
  560. -3, 0, 3, 0,-3,0.4769618868,0.0
  561.  
  562. *cc
  563. -3, 0, 3, 0,-3,0.000001,0.0
  564.  
  565. *centiliter(s),centilitre(s)
  566. -3, 0, 3, 0,-3,0.00001000028,0.0
  567.  
  568. *cord(s)  ;  128 ft^3 (This CRC value looks like it's based on survey feet.)
  569. -3, 0, 3, 0,-3,3.6245734,0.0
  570.  
  571. *decaliter(s),*dekaliter(s),*decalitre(s),*dekalitre(s)
  572. -3, 0, 3, 0,-3,0.01000028,0.0
  573.  
  574. *decastere(s),dekastere(s)
  575. -3, 0, 3, 0,-3,10.0,0.0
  576.  
  577. *decistere(s)
  578. -3, 0, 3, 0,-3,0.1,0.0
  579.  
  580. *dry_gallon(s)  ;  US
  581. -3, 0, 3, 0,-3,0.0044048828,0.0
  582.  
  583. *dry_pint(s)  ;  US
  584. -3, 0, 3, 0,-3,0.00055061035,0.0
  585.  
  586. *dry_quart(s)  ;  US
  587. -3, 0, 3, 0,-3,0.0011012207,0.0
  588.  
  589. *fluid_cup(s),cup(s)  ;  US
  590. -3, 0, 3, 0,-3,0.0002365882375,0.0
  591.  
  592. *fluid_dram(s),dram(s),dr  ;  US
  593. -3, 0, 3, 0,-3,3.6966912109375E-06,0.0
  594.  
  595. *fluid_gallon(s),gallon(s),gal  ;  US
  596. -3, 0, 3, 0,-3,0.0037854118,0.0
  597.  
  598. *fluid_ounce(s)  ; US
  599. -3, 0, 3, 0,-3,2.95735296875E-05,0.0
  600.  
  601. *fluid_pint(s),pint(s)  ; US
  602. -3, 0, 3, 0,-3,0.000473176475,0.0
  603.  
  604. *fluid_quart(s),quart(s),qt  ;  US
  605. -3, 0, 3, 0,-3,0.00094635295,0.0
  606.  
  607. *firkin(s)  ;  US  (9 US fluid gallons)
  608. -3, 0, 3, 0,-3,0.0340687062,0.0
  609.  
  610. *gill(s)  ;  US  (1/32 US fluid gallons)
  611. -3, 0, 3, 0,-3,0.00011829411875,0.0
  612.  
  613. *hectoliter(s),hectolitre(s)
  614. -3, 0, 3, 0,-3,0.1000028,0.0
  615.  
  616. *hogshead(s)  ;  (63 US fluid gallons)
  617. -3, 0, 3, 0,-3,0.2384809434,0.0
  618.  
  619. *kilderkin(s)  ;  British
  620. -3, 0, 3, 0,-3,0.08182957,0.0
  621.  
  622. *kiloliter(s),kilolitre(s)
  623. -3, 0, 3, 0,-3,1.000028,0.0
  624.  
  625. *liter(s),litre(s)
  626. -3, 0, 3, 0,-3,0.001000028,0.0
  627.  
  628. *milliliter(s),millilitre(s),ml
  629. -3, 0, 3, 0,-3,0.000001000028,0.0
  630.  
  631. *minim(s)  ;  US  (1/60 US fluid dram (1/61440 US fluid gallon))
  632. -3, 0, 3, 0,-3,6.1611520182292E-08,0.0
  633.  
  634. *peck(s)  ;  US  (2 US dry gallons)
  635. -3, 0, 3, 0,-3,0.0088097656,0.0
  636.  
  637. *pottle(s)  ;  (0.5 British gallons)
  638. -3, 0, 3, 0,-3,0.0022730435,0.0
  639.  
  640. *puncheon(s)
  641. -3, 0, 3, 0,-3,0.31797510,0.0  ;  British
  642.  
  643. *register_ton(s)  ;  (100 ft^3)
  644. -3, 0, 3, 0,-3,2.8316846592,0.0
  645.  
  646. *seam(s)  ;  (64 British gallons)
  647. -3, 0, 3, 0,-3,0.290949568,0.0
  648.  
  649. *stere(s)
  650. -3, 0, 3, 0,-3,1.0,0.0
  651.  
  652. *tun(s)  ;  (252 US fluid gallons (4 hogsheads))
  653. -3, 0, 3, 0,-3,0.9539237736,0.0
  654.  
  655.  
  656. ; Speed:
  657.  
  658. *light_speed   ;  The new, exact, value (not the CRC one).
  659.  1, 0, 0, 0, 0,299792458.0,0.0
  660.  
  661. *knot(s)  ;  Nautical miles / hr
  662.  1, 0, 0, 0, 0,0.51444444444444444444,0.0
  663.  
  664.  
  665. ; Acceleration:
  666.  
  667. *g_acceleration
  668.  3, 0,-1, 0, 1,9.80665,0.0
  669.  
  670.  
  671. ; Force:
  672.  
  673. *dyne(s)
  674.  3, 0,-1, 0, 2,0.00001,0.0
  675.  
  676. *force_pound(s)
  677.  3, 0,-1, 0, 2,4.4482216765935,0.0
  678.  
  679. *newton(s)
  680.  3, 0,-1, 0, 2,1.0,0.0
  681.  
  682.  
  683. ; Pressure:
  684.  
  685. *atmosphere(s),atm
  686.  5, 0,-3, 0, 4,101325.0,0.0
  687.  
  688. *bar(s)
  689.  5, 0,-3, 0, 4,100000.0,0.0
  690.  
  691. *barye(s)
  692.  5, 0,-3, 0, 4,0.1,0.0
  693.  
  694. *pascal
  695.  5, 0,-3, 0, 4,1.0,0.0
  696.  
  697. *torr(s),mm_of_hg
  698.  5, 0,-3, 0, 4,133.32236842105,0.0
  699.  
  700.  
  701. ; Energy:
  702.  
  703. *british_thermal_unit(s),btu(s)
  704.  2, 0, 0, 0, 1,1054.35,0.0
  705.  
  706. *calorie(s),cal  ;  Gram-calorie
  707.  2, 0, 0, 0, 1,4.184,0.0
  708.  
  709. *joule(s)  ;  Absolute (kg-m^2/sec^2)
  710.  2, 0, 0, 0, 1,1.0,0.0
  711.  
  712. *kilocalorie(s),kcal  ;  Kilogram-calorie (the nutritional calorie)
  713.  2, 0, 0, 0, 1,4184.0,0.0
  714.  
  715. *electron_volt(s),ev
  716.  2, 0, 0, 0, 1,1.60209E-19,0.0
  717.  
  718. *erg(s)
  719.  2, 0, 0, 0, 1,1.0E-07,0.0
  720.  
  721.  
  722. ; Power
  723.  
  724. *horsepower,hp
  725.  4, 0,-1, 0, 2,745.700,0.0
  726.  
  727. *kilowatt(s),kw
  728.  4, 0,-1, 0, 2,1000.0,0.0
  729.  
  730. *watt(s),w
  731.  4, 0,-1, 0, 2,1.0,0.0
  732.  
  733.  
  734. ; Electric charge:
  735.  
  736. *coulomb(s)
  737.  0, 1, 0, 0, 0,1.0,0.0
  738.  
  739. *electron_charge(s)
  740.  0, 1, 0, 0, 0,1.60209E-19,0.0
  741.  
  742.  
  743. ; Electric current:
  744.  
  745. *microampere(s),microamp(s)
  746.  2, 1,-1, 0, 1,0.000001,0.0
  747.  
  748. *milliampere(s),milliamp(s),ma
  749.  2, 1,-1, 0, 1,0.001,0.0
  750.  
  751.  
  752. ; Electromotive force:
  753.  
  754. *volt(s),v
  755.  2,-1, 0, 0, 1,1.0,0.0
  756.  
  757. *millivolt(s),mv
  758.  2,-1, 0, 0, 1,0.001,0.0
  759.  
  760. *microvolt(s)
  761.  2,-1, 0, 0, 1,0.000001,0.0
  762.  
  763.  
  764. ; Electric resistance:
  765.  
  766. *ohm(s)
  767.  0,-2, 1, 0, 0,1.0,0.0
  768.  
  769.  
  770. ; Electric capacitance:
  771.  
  772. *farad(s)
  773. -2, 2, 0, 0,-1,1.0,0.0
  774.  
  775.  
  776. ; Electric inductance:
  777.  
  778. *henry,henries
  779. -2,-2, 2, 0,-1,1.0,0.0
  780.  
  781.  
  782. ; Magnetic flux:
  783.  
  784. *maxwell(s)
  785.  0,-1, 1, 0, 0,1.0E-08,0.0
  786.  
  787. *weber(s)
  788.  0,-1, 1, 0, 0,1.0,0.0
  789.  
  790.  
  791. ; Magnetic induction:
  792.  
  793. *gauss(es)
  794.  2,-1,-1, 0, 2,0.0001,0.0
  795.  
  796. *tesla(s)
  797.  2,-1,-1, 0, 2,1.0,0.0
  798.  
  799.  
  800. ; Angle
  801.  
  802. *arc_minute(s)
  803.  0, 0, 0, 0, 0,60.0,0.0
  804.  
  805. *arc_second(s)  ;  Used as the fundamental angular unit.
  806.  0, 0, 0, 0, 0,1.0,0.0
  807.  
  808. *circle(s)
  809.  0, 0, 0, 0, 0,1296000.0,0.0
  810.  
  811. *degree(s),deg
  812.  0, 0, 0, 0, 0,3600.0,0.0
  813.  
  814. *grad(s)
  815.  0, 0, 0, 0, 0,3240.0,0.0
  816.  
  817. *quadrant(s)
  818.  0, 0, 0, 0, 0,324000.0,0.0
  819.  
  820. *radian(s)
  821.  0, 0, 0, 0, 0,206264.80624709636,0.0
  822.  
  823.  
  824. ; Solid angle
  825.  
  826. *hemisphere(s)
  827.  0, 0, 0, 0, 0,6.28318530717958647692,0.0
  828.  
  829. *sphere(s)
  830.  0, 0, 0, 0, 0,12.56637061435917295384,0.0
  831.  
  832. *steradian(s)
  833.  0, 0, 0, 0, 0,1.0,0.0
  834.  
  835.  
  836. ; Dimensionless multiples and submultiples:
  837.  
  838. *atto
  839.  0, 0, 0, 0, 0,1.0E-18,0.0
  840.  
  841. *centi
  842.  0, 0, 0, 0, 0,0.01,0.0
  843.  
  844. *deca,deka
  845.  0, 0, 0, 0, 0,10.0,0.0
  846.  
  847. *deci
  848.  0, 0, 0, 0, 0,0.1,0.0
  849.  
  850. *exa
  851.  0, 0, 0, 0, 0,1.0E+18,0.0
  852.  
  853. *femto
  854.  0, 0, 0, 0, 0,1.0E-15,0.0
  855.  
  856. *giga
  857.  0, 0, 0, 0, 0,1.0E+09,0.0
  858.  
  859. *hecto
  860.  0, 0, 0, 0, 0,100.0,0.0
  861.  
  862. *kilo
  863.  0, 0, 0, 0, 0,1000.0,0.0
  864.  
  865. *mega
  866.  0, 0, 0, 0, 0,1.0E+06,0.0
  867.  
  868. *micro
  869.  0, 0, 0, 0, 0,1.0E-06,0.0
  870.  
  871. *milli
  872.  0, 0, 0, 0, 0,0.001,0.0
  873.  
  874. *nano
  875.  0, 0, 0, 0, 0,1.0E-09,0.0
  876.  
  877. *peta
  878.  0, 0, 0, 0, 0,1.0E+15,0.0
  879.  
  880. *pico
  881.  0, 0, 0, 0, 0,1.0E-12,0.0
  882.  
  883. *tera
  884.  0, 0, 0, 0, 0,1.0E+12,0.0
  885.