#
# Unit defintions
-# 18 May 2001 M-J. Dominus (mjd-perl-units+@plover.com).
+# 18 May 2001 M-J. Dominus <mjd-perl-units+@plover.com>.
# This file is in the PUBLIC DOMAIN.
# All rights abandoned.
#
# Seven instrinsic SI units:
gram ***
meter ***
+# Tim Riker <Tim@Rikers.org> adds metre alias
+metre meter
second ***
ampere ***
candela ***
mm millimeter
micron micrometer
inch 2.54 cm # This is the official definition and is exact
+mil milliinch
in inch
+barleycorn 1/3 inch # Tim Riker <Tim@Rikers.org
inches inch # plural
foot 12 inch
ft foot
yd yard
mile 5280 feet
mi mile
-nautical 1.151 # For `nautical mile'
+#nautical 1.151 # For `nautical mile'
+nautical 1.150779447892
+statute 1
+# pilots need this :)
+nm 1 nautical mile
+sm 1 statute mile
parsec 1.91615e13 mi
+#parsec 3.08568025e16 m # better?
# light year will be implied by `year' and `light' below
fathom 6 ft
cable 120 fathoms
minim 1|60 fldram
cup 8 floz
cu cup
-gill 1|2 cup
+gill 1|2 cup
pint two cups
quart two pints
pottle two quarts # Yup!
britquart 2 britpint
britqt britquart
britgallon 4 britquart
-britgal britgallon
+britgal britgallon
britpeck 2 britgal
-britfirkin 9 britgal
+britfirkin 9 britgal
britkilderkin two britfirkins
kilderkin britkilderkin # kilderkin is British only
britbucket 4 britgal # That's `britbucket,' not `bit bucket'.
bushel 4 pecks
bu bushel
seam 8bu
-bag 3bu
-
-
-imperial 1.201 # For `imperial pint,' etc.
+bag 3bu
+imperial 1.201 # For `imperial pint,' etc.
# MASS (also WEIGHT)
#
# To avoid confusing the end user, we will pretend that `pound' is
-# a unit of mass, interconvertible with `grams'. If you want
-# pounds of force, see `lbf,' below. In this section, `pound'
+# a unit of mass, interconvertible with `grams'. If you want
+# pounds of force, see `lbf,' below. In this section, `pound'
# really means `mass of an object that weighs one-pound at the surface
# of the Earth.' That is, in this program, `slug' has its usual
# meaning, and `pound' is synonymous aith `slug'.
oz ounce
pound 16 oz
lb pound
-slug lb
+slug lb
hundredweight 112 lb # This is the `long' hundredweight, analagous to
# the long ton. There is also a `short' hundredwight,
# but it's just a hectlb, so I put this one in instead.
-cwt hundredweight
+cwt hundredweight
quarter 5 cwts
longton 20 cwt
-ton longton
+#ton longton # use shortton my default Tim Riker <Tim@Rikers.org>
short 100|112 # Convert long tons, cwts, and quarters to short.
-shortton short ton
+shortton short longton
+ton short longton # the american ton, see metriton and longton
stone 14 lb
cental 100 lb
wey 252 lb
apothounce 480 grains
apothoz apothounce
apothpound 12 apothoz
-apothlb apothpound
+apothlb apothpound
# Troy measures (for gold and precious stones)
pennyweight 24 grains
troyoz 480 grains # We can't define `troy' as a constant,
hr hour
day 24 hrs
dy day # This will denote mean solar days
-siderealday 0.99726957 dys
+siderealday 0.99726957 dys
week 7 days
wk week
month 30 days
coul Coulomb
C Coulomb
electron 1.60217733e-19 C # Charge on the electron; implies electron-volts
-e electron
+e electron
abcoulomb 10C
statcoulomb 3.335635e-11 abcoulomb
dyne g cm/s2
grav 9.8 m/s2 # Acceleration due to gravity
gee grav
-# Actually the accleration varies with altitude and latitude,
+# Actually the accleration varies with altitude and latitude,
# from 9.78039 m/s2 at the equator to 9.83217 m/s2 at the poles.
# This mean value corresponds to a latitude of about 38 degrees.
lbf lb grav
Mx Maxwell
Gauss 1.0e-4 T
gauss Gauss
-# We won't use G for Gauss because it is more important to
+# We won't use G for Gauss because it is more important to
# use it for the universal gravitational constant
# Capacitance
Gev gigaeV
Tev teraeV
energy c2 # You can ask for `1 gram energy' and get
- # the amount of energy equivalent to
+ # the amount of energy equivalent to
# 1 gram according to e=mc2.
# Check: 1amu energy == 931.16 Mev?
Franklin (10/c) C cm/sec
plancktime 5.39056e-44 sec
# Let's reserve `Planck' for a while longer until I can decide if
# they'd be useful in `planck time' etc.
-permeability 4*pi*1.0e-7 H/m # Magnetic permeability of vacuum constant
-permittivity 8.854187817e-12 F/m # Electric permittivity of vacuum constant
+permeability 4*pi*1.0e-7 H/m # Magnetic permeability of vacuum constant
+permittivity 8.854187817e-12 F/m # Electric permittivity of vacuum constant
protonmass 1.6726231e-27 kg
neutronmass 1.6749286e-27 kg
-electronmass 9.1093897e-31 kg
+electronmass 9.1093897e-31 kg
finestructure 7.29735308e-3 # Rl
# Electron charge is up above under `electrostatic'.
# There's no reason to get too obscure here because if someone wants
rad radian
circle 2 pi radians
revolution circle # For revolutions / sec
-rev revolution
+rev revolution
rpm revolutions per minute
quadrant 1|4 circle
degree 1|360 circle
hapenny half penny
twopence two pence
tuppence two pence
-thruppence 3 pence
-threepence 3 pence
-sixpence 6 pence
+thruppence 3 pence
+threepence 3 pence
+sixpence 6 pence
crown 5 shillings # Implies `half crown'
guinea 21 shillings
florin 2 shillings
projects / infobot.git / blobdiff