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# Conversion factors for tunits task
#
# Read this table as "There are <factor> <from> in a <to>."
# For example, "There are 100 centimeters in a meter."
# The last column, swap, does not change the sense of the sentence
# but does change the direction that the conversion is applied,
# For example, "60 seconds in a minute" is actually a conversion
# from minutes to seconds because swap is yes. Unit conversions
# should set swap to yes when the desired conversion is not an exact
# value, but its inverse is. Only one conversion is allowed per
# unit, which simplifies the program logic considerably. Conversions
# should be chosen so that they ultimately resolve to MKS units. To
# prevent endless loops conversions from the fundamental units are
# checked for and forbidden. However, the program does not check for
# other loops, so be careful when adding new conversions!
#
# factor from to swap?
#----------------------------------------------------
100 centimeter meter no
1e-3 kilometer meter no
1e3 millimeter meter no
1e6 micron meter no
1e9 nanometer meter no
1e10 angstrom meter no
1e3 gram kilogram no
1e6 milligram kilogram no
60 second minute yes
60 minute hour yes
24 hour day yes
365.2421897 day year yes
57.2957795131 degree radian no
60 arcminute degree no
60 arcsecond arcminute no
1.4959787066e11 meter au yes
206264.806247 au parsec yes
1e3 parsec kiloparsec yes
1e6 parsec megaparsec yes
9.46073047e15 meter lightyear yes
1e3 liter m^3 no
1 newton kg*m/s^2 no
1 joule kg*m^2/s^2 no
1 watt kg*m^2/s^3 no
1 dyne gm*cm/s^2 no
1 erg gm*cm^2/s^2 no
2.54 centimeter inch yes
12 inch foot yes
5280 foot mile yes
16 ounce pound no
0.45359237 pound kilogram no
1054.4 btu joule no
4.184 calorie joule no
1e-3 kilocalorie calorie no
6.24150648e18 ev joule no
1e-3 kev ev no
1e-6 mev ev no
1e23 jansky erg/s*cm^2*hz no
1e3 millijansky jansky no
1e-3 kilohertz hertz no
1e-6 megahertz hertz no
1e-9 gigahertz hertz no
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