[USMA:24794] dyne-seven

[kilopascal]

2003-02-09   Last week I was in Texas.  On Friday, as I was waiting in the reps office while he made some phone calls before we went to see some customers, I was paging through an old electrical engineering text book that was on the book shelf.  The book was on magnetism and was published in 1929.   One thing of note was the use of a unit called the DYNE-SEVEN.   Apparently, this unit was proposed by an author of another book by the name of Bennett.  It is suppose to be equal to 10^7 dynes.  This unit would be equal to the hectonewton.  The newton was not seen in that book at all.  It must not have existed at that time.   The book was a mess of units, symbols and usage.  I saw one problem example use the unit: "CMS. per second".  There were many examples of FFU and metric mixed together.  And there were various sub-systems of "metric" magnetic units that even confused me.  I can see why the BIPM cleaned house in 1960 and came up with SI.   I should have made a photo copy of some of the pages, but I didn't.   John