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Comment Is this Project Fi? (Score -1, Offtopic) 127

This Google Fiber they're talking about has nothing to do with the Project Fi wireless service, does it? I've been using Project Fi after dumping AT&T, and I'm really liking it. But then, after AT&T, I'd probably be really liking two tin cans connected by a string, so the bar is pretty low.

Comment Re:How can a taxi company... (Score 4, Interesting) 143

How can a taxi company with literally no expenses except for keeping a few servers running run a loss in the billions?

Uber CEO Travis Kalanick is worth over $6 billion. The loss belongs strictly to the investors. The company's doing fine, otherwise.

This is why Uber is not a public company. It's a money laundering operation.

http://www.cnbc.com/2016/03/28...

http://investorplace.com/ipo-p...

Comment Re: He'll definitely be an interesting test subjec (Score 2) 43

The Gemini crew reported they couldn't actually feel any gravity, all they could observe was that objects in the capsule slowly moved towards the outside of the tether-system.

A full 1g is probably not necessary, but how much is, that's the big question. Unfortunately we're not really in any position to produce e.g. .8g for a prolonged (read: several months) time to see whether this has any negative effect on the test subject.

Comment Re: He'll definitely be an interesting test subjec (Score 4, Informative) 43

That is easier said than done. To actually make this work without getting the person subjected to it sick (due to differential gravity between head and toes, so to speak), that ring would have to be HUGE.

There were some experiments with artificial gravity done by Gemini 11, they attached a tether to their AGENA docking target and started rotating with it. The gravity generated was in the 0.0001g ballpark IIRC, though. This would probably be far more realistic to do, i.e. creating a capsule and a counterweight and spinning them about each other, because you need way less mass and you could easily put capsule and counterweight at a huge distance and rotate them slowly while still generating a reasonable amount of gravity. The problem is that the cable to connect them has to be made out of something that's better at not ripping than anything we can manufacture right now.

Artificial gravity by rotation look cool on paper, it's the little problems that keep it from happening.

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