i'm addicted to digital books (especially when they're books from the 1600's that i'd never be able to go through page by page any other way...).
(click on the title to flip through)
written by john bate in 1634. apparently isaac newton was given a copy of this book as a teenager by the headmaster of his school. he copied out sections and built working models out of some of the water clocks/wheels.
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