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zakthor zakthor is online now
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Join Date: Jun 2010
Location: beaux arts, wa
Posts: 1,401
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Nifty Book - The Steel Square

Anyone heard of this book?

I found this 25 years ago in a box of discarded books on a sidewalk. I leafed through it and it looked interesting so i took it home. Skimmed it then misplaced it, just found it again.

For the time it was lost i had the memory of this very interesting book but couldnt remember the name. Its practical craft math,

Whats neat to me is that id solve these problems with trig and linear algebra, then stuck with a protractor to draw the angles.

The author of this book was an old timey builder and a savant with the steel square. He developed a set of transforms and algorithms and compute the right cut just by reflecting the square, even iterating. The guy was a self taught math whiz while denying he knew any math.



Old 10-24-2025, 05:12 PM
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