posted on Dec, 26 2014 @ 04:33 AM
Light "bouncing" onto the retina, getting converted into nerve impulses which are transmitted to our brain.
This is how SEEING work, in simple words : )
However, it is incorrect and entire bunk what the OP/video says, since light doesn't need a medium "in between" its source and our eyes so we can
see it. But this is what the OP claims. Photons (and radio waves etc.) travel through empty space, this is pre-school knowledge, please.
looked at a star in space with no matter inbetween. The light would be invisible
There is indeed no matter inbetween since space is (almost) a perfect vacuum, or at least as perfect as it gets.
those few hydrogen atoms per cubic meter are enough to make the suns light visible as well.
This sounds like some theory you just pulled out your a$$, so basically you are agreeing with the more than stupid claim in the video and say it's
those few particles which make it possible that we can see a light source. Except that this is wrong.