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A comment on Biggest explosion ever documented in the universe [pdf]. Parent comment

Re:Biggest explosion ever documented in the universe [pdf] by arethuza on Wednesday March 11, 2020 @08:14AM (#22545105)
That reminds of part of an XKCD What If - Which of the following would be brighter, in terms of the amount of energy delivered to your retina:

- A supernova, seen from as far away as the Sun is from the Earth, or

- The detonation of a hydrogen bomb pressed against your eyeball?

https://what-if.xkcd.com/73/

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Re:Biggest explosion ever documented in the universe [pdf] by derekp7 on Wednesday March 11, 2020 @03:47PM (#22549728)
What I want to know, is how bright does a light have to be to blind you if the back of your head is facing it.
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