Sunlight is way older than you think

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Picture of RandurSource56 achievements

-2 1. RandurSource commented 9 years ago

How light is the sun?

Does it matter, or anti matter?

When he said 'let's assume' at 1:53 I knew it was a bit hypothetical, so let's assume it's true, and he is right
Picture of Judge-Jake53 achievements

+7 2. Judge-Jake commented 9 years ago

The problem with videos like this, interesting through they are, is that you can't remember enough of them to be able to seem intelligent when explaining them to someone else. :S
Picture of dushan56 achievements

+2 3. dushan commented 9 years ago

#1 bigger question is, did sun shine at all in the first 170.000 years of it's existence 3:49 :D
Picture of celestus8722 achievements

+4 4. celestus87 commented 9 years ago

#3 The short answer is yes.

When the super heated dust cloud formed the primordial solar disk, the material at the center would have emitted infrared radiation which is light, although invisible to the human eye. As the sun condensed and accomulated even more material, infrared radiation increased up until the point the sun was the size of a brown dwarf. After that, the burning of deuterium and hydrogen would eventually start turning xrays into UV and visible light, and that light would travel through the sun's mass much faster that it does today as the sun was less massive while it was still forming.

The bottom line is that ever since the primordial cloud collapsed into the solar disk, the sun (or protosun) has been emitting light of one kind or the other.

:edit:

got to 1m55s on this youtube video for an illustration.

https://www.youtube.com/watch?v=bVAr5saLYIw
Picture of braveheart205231 achievements

+1 5. braveheart2052 commented 9 years ago

I believe this is the primary reason that we have flux capacitors ! :D ;) ;) ;) ;)
Picture of thundersnow58 achievements

+2 6. thundersnow commented 9 years ago

snotr quality video!