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!
BrainTwister #94: Shape up
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From New Scientist #3564, 12th October 2025 [link] [link] (a) A square has
a side length of x. There is one value of x for which the perimeter and the
area...
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