I've turned comments off on this blog as I'm getting quite a lot of spam. I've been able to keep on posting on flickr but haven't the time and energy to manage to be an active blogger. Sorry not to have been visiting your blogs.
My best wishes to you all!
Update: Comments are back on and I'm back!
Enigma 773: Duodecimal
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From New Scientist #1928, 4th June 1994 [link] Two warnings about the sum
shown here: the first is that it is a sum in base 12 throughout; the second
is th...