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Comment Plus Amazon Prime (Score 1) 140

Also rumored to include a subscription to Amazon Prime - free shipping and the movie streaming service. Not a bad deal if the look and feel is good.

Prediction: In 2 years they'll give you a tablet when you subscribe to Amazon Prime.

Matt Wood
Melbourne, FL

Comment Re:Easier way to learn it (Score 2) 358

The Book by Taylor and Wheeler "Exploring Black Holes: Introduction to General Relativity" is very nice, and roughly at your level. http://www.amazon.com/Exploring-Black-Holes-Introduction-Relativity/dp/020138423X/ref=sr_1_2?ie=UTF8&qid=1314560336&sr=8-2 Matt A. Wood Physics & Space Sciences Dept Florida Institute of Technology Melbourne, FL 32901

Comment Re:We're no danger to the Galaxy... (Score 1) 534

The sun's radius is about 100x Earth's radius, and Earth orbit is about 200 solar radii. Our unmanned spacecraft have gone about 40x this distance. Shrink the sun down to the size of a softball and typical interstellar distances scale to about 3500 km. The energy requirements to make such a trip are extraordinary (if not prohibitive). The time to make the trip is also quite substantial, even accelerating at a constant 1g. Short answer: If they have the tech to get here, they can do whatever they want, and we'd have no defense. Easiest: raise enough dust/soot in the atmosphere (nuclear weapons in remote areas, or just targeted asteroids) for a few years to block the sun. Sagan's "nuclear winter". Clean up, move in, or move on. Matt -- "Quando Omni Flunkus Moritati" (When all else fails, play dead)

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