3 ms·
> 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
by aexaey 10y ago
> 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/ http://what-if.xkcd.com/
- dzdt 10y agoYes. Send it!
- davidhowlett 10y agoSent, I would love to see Randall Munroe's take on it.