I've lost these problems. Can someone direct me to them. Thanks, marion moonmfmoon2002
Hi Joe, It's widely quoted as an interesting factoid (although it doesn't seem to have interested many slide-rulers!) but I don't know its origin. Regards, Rodrodlovett
Hi Folks, I picked up an odd Flying Fish I-J rule from this ebay listing https://www.ebay.com/itm/302542718576 It has no numerical designator and has somemsmccor100
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Slide rules are THE ORIGINAL solar powered calculators. Try using one in the dark and you'll see I'm right, or not see as the case may be.
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