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The centre-lathe is by far the most versatile machine tool in the workshop, but as soon as you depart from plain turning between centres, the ...
This book makes possible the accurate geometrical solution of all problems of pattern development normally encountered, by giving examples arranged according to a systematic plan ...
A mixture of old and new riddles covering a variety of mathematical topics: money, speed, plane and solid geometry, probability, topology, tricky puzzles, and more ...