are 100 m^2 liter 1000 cc The liter was defined in 1901 as the
oldliter[?] 1.000028 dm^3 space occupied by 1 kg of pure water
at l liter the temperature of its maximum densityunder a
pressure of 1 atm. This was supposed to be 1000 cubic cm, but it
was discovered that the original measurement was off. In 1964,
the liter was redefined to be exactly 1000 cubic centimeters.
mho siemens Inverse of ohm, hence ohm spelled backward galvat[?]
ampere Named after Luigi Galvani angstrom 1e-10 m Convenient for
describing molecular sizes xunit[?] 1.00202e-13 meter Used for
measuring wavelengths siegbahn[?] xunit of X-rays. It is defined
to be1|3029.45 of the spacing of calcite planes at 18 degC. It
was intended to be exactly 1e-13 m, but was later found to be
off slightly. fermi 1e-15 m Convenient for describing nuclear
sizesNuclear radius is from 1 to 10 fermis barn 1e-28 m^2 Used
to measure cross section forparticle physics collision, said to
have originated in the phrase "big as a barn". shed[?] 1e-24
barn Defined to be