It comes from 'economical duty'. It is the same as a foot pound.
http://en.wikipedia.org/wiki/James_Joule
Pat wrote:
http://en.wikipedia.org/wiki/James_Joule
Pat wrote:
I am intrigued by a unit called 'dutys' that crops up on energy conversion charts. It appears to be equivalent to 1.355 817 947 9 joule, and yes, this is the sort of precision listed.
Does anyone help me with anything about the use of this unit or of its origin?
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