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A comment on Pulsed terawatt lasers have surprising effects when shone through the air (2006). Parent comment

Re:Pulsed terawatt lasers have surprising effects when shone... by aexaey on Friday May 27, 2016 @02:11PM (#11787790)
> what power density would it take to get self-focusing in a vacuum by gravitational lensing?

Not this is a question I'd look forward to be answered by Randall Munroe in his http://what-if.xkcd.com/

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Re:Pulsed terawatt lasers have surprising effects when shone... by dzdt on Friday May 27, 2016 @03:02PM (#11788148)
Yes. Send it!
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Re:Pulsed terawatt lasers have surprising effects when shone... by davidhowlett on Friday May 27, 2016 @04:14PM (#11788630)
Sent, I would love to see Randall Munroe's take on it.
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