[ExI] Gravitational Waves Detected By LIGO!

[Giovanni Santostasi]

I think most of the energy though was channeled in to gravitational waves, n

On Thu, Feb 11, 2016 at 1:39 PM, Giulio Prisco <giulio at gmail.com> wrote:

> The energy that kills an entire galaxy would be released as hard gamma
> rays. "Hot enough to break nuclei at 50,000 light years" (Egan's Diaspora)
>
> On Feb 11, 2016, at 6:50 PM, spike <spike66 at att.net> wrote:
>
>
>
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> *From:* extropy-chat [mailto:extropy-chat-bounces at lists.extropy.org] *On
> Behalf Of *Anders Sandberg
> *…*
>
> >…If we assume the energy release was around 10^50 J over a second, then
> the power per square meter at distance d is 10^50/(4 pi r^2) Watts. So the
> criticial distance if the danger power is P is r=sqrt(10^50/4 pi P). If we
> assume a megawatt/m^2 is enough to cause biosphere damage, then the
> distance is 298,000 lightyears. To wipe out more advanced civilizations I
> would expect a much higher P; for a gigawatt the range is 9,400 lightyears
> - bad in the central part of a galaxy, but not even covering it…
>
>
>
> Anders, cool, but we need to know how GW energy would interact with matter
> before we conclude that it would nuke biomes.
>
> spike
>
>
>
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