Tuesday, April 25, 2006

Favourite illustrations #1

Wilkins's picture of machine for uprooting tree This is from John Wilkins's Mathematical Magick, published in 1648 (picture is from the 1707 edition), possibly the first book on applied mathematics in English. It shows a device by which a man, blowing into a straw (top left) can, by an arrangement of gears, uproot an oak tree. (Of course, this was before Newton's Laws of mechanics.)

As far as I know this machine was never made. Otherwise the Monty Python Lumberjack Song would have been rather different:

I'm a lumberjack and I'm OK,
I sleep by night and I work by day,
I blow down trees ...

1 Comments:

Blogger HL said...

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2:04 AM  

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