Re: SI unit prefixes

[GACMail98@aol.com]

In a message dated 98-07-17 13:58:43 EDT, Emelie Lamothe (lamothee@aecl.ca)
writes:

<< deca       1E+01 (no symbol or abbreviation) >>

"deka" abbreviation is da or dk.  Sometimes spelled "deca."  

10e-15  femto
10e-18  atto

Ref:  

1. Mark's Standard Handbook of Mechanical Engineers, 9th Edition, p. 1-19.
2.  Scientific Tables, 6th Edition, Geigy Pharmacetuticals, p. 9 and 200.

Contrary to my dictionary, I pronounce "giga" with hard g.

Glenn 
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