*Resistor sizes to power ratings
*10AWG - wire sizes/currents
*10uF, 10pF, 10fF, 0.0000001F - capacitance values
*10uH - Inductance values
*100 - hex and binary values
*0x345 - decimal and binary values
*101101b - decimal and hex values
*10F - temperature in Celsius
perhaps even mfr's part numbers
4in - convert to ft, cm, m, etc
4m - convert to ft, m, etc
4Mi - miles to km
c - speed of light
mole - avagadro's number
mm to mils

$ - currency exchange rates
radiation exposure/dosage rates etc.
Fedex/UPS package tracking numbers
zip codes
phone numbers
area codes
time zones