> Matthew Zotter wrote:
>
> 2002 NOV 17 SUN
>
> Once I ask someone, "Why don't we use SI?"
> Response, "Inch pounds put an american on the moon and dropped the
> A-bomb on Japan, so they're good enough for me."
>
> So does anybody know if the Apollo missions were done in SI or US
> Customary Units?
> I know that a lot of Nuclear research is done in SI, but was the
> Manhattan project in SI? Was the first bomb made with is mix of SI
> and inches?
>
> Matthew Zotter
There was a major revision to the standards in 1948- as I recall the
International Ohm was off by about 0.5%.- The international units were
replaced by the absolute units we have today. The development of the SI
as a coherent system of units began about this time and was adopted in
the 1950's. The system did not exist for the Manhattan Project.
--
Carroll Hughes
