Sunlight is way older than you think
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53
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.
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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
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
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5. braveheart2052 commented 9 years ago
I believe this is the primary reason that we have flux capacitors !
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6. thundersnow commented 9 years ago
snotr quality video!
-2 1. RandurSource commented 9 years ago
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