I just opened the link to the Amazon site where Alex's books are described. They remind me of one of my old favorite books that I read and studied many times, starting almost 60 years ago. It was titled "Mathematician's Delight" and it introduced me to the entire math spectrum all the way up to caluclus et al. I still have this relatively slim paperback. It was a gift from my uncle who was an ME student at the time and a major influence on my career choices. I'd tell you the author but I'm in the office and the book is at home! As I recall, he was also a Brit. Too lazy to Google.
Did just Google. It's still in priint, in 10 languages (and in a Kindle version) since 1943! I think my copy is the original Penguin release. Author was W. W. Saywer, British-born, but who lived and taught math in many places around the world. He died in 2008 at age 96.
If you consider the result of removing a central slice, then "reforming" the cylinder as a slightly smaller version, this would be an excellent technique for stealing a piece without anyone immediatelty noticing! "Stealing a big slice from the cake meant for the school/church bake sale" is a cartoonist's staple for many years. This could even be a trick that potential future STEM students could appreciate: Lesson #1 in "creative scaling."
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