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This August 21, 2017 a stripe of the continental US will experience a total lunar eclipse.
Will you be there to experience the totality?
Federal, State, and local authorities have already issued warnings. Some already declared official states of emergency. NASA tweets daily. You’d think the sky was falling. Since folks are raving about the music of the spheres this reminds me of a…

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Posted by Tench Tilghman

Tags  WATT, Newton

Was that a more important meeting than When Harry met Sally or Steve met Woz? Certainly.

I calculated that this particular August is the 330 year anniversary of Edmond Haley’s famous meeting and question to Isaac Newton about the motion of celestial bodies. Sir Isaac would have liked my number, but that’s a bit too obscure for most. Newton answered Halley directly and elliptically, but failed…

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Posted by Tench Tilghman

Tags  WATT, Newton, physics, math, Principa