(urth) not quite Father Inire's mirrors . . .

[David Stockhoff]

Nicely put:

"Quantum theory predicts that a vacuum is actually a writhing foam of 
particles flitting in and out of existence."

The most apparent limitation of the sails of the Ship is that (you would 
think) they shouldn't generate as much "lift" away from a star, when 
they would want to go very fast, as they do very near one, when they 
would want to go very slow.

If they can actually generate a little more pressure from space itself, 
that's less of a problem.

On 6/8/2011 7:13 AM, Steve Case wrote:
> Not yet, anyway: "Moving mirrors make light from nothing": http://www.nature.com/news/2011/110603/full/news.2011.346.html
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