In the canon
Principia Mathematica
- Form
- Form Non-fiction
- Year
- Year 1687
- Originally in
- Originally in Latin
- Pages
- Pages 990
The Moon is falling, and it has been falling since before there was anyone to look up at it. That is the staggering claim of this book: the pull that brings a stone down to your feet is the same pull that bends the Moon around the Earth, the Earth around the Sun, and a comet back out of the dark along a curve you can work out with a pen.
But hitherto I have not been able to discover the cause of those properties of gravity from phænomena, and I frame no hypotheses.
The blurb, the gist, the why of the day and the work itself are in the app. The first button needs it on this device; the second gets it there.