That’s kind of the wrong question. I’m not exactly sure how to ask because I don’t know where I’m confused.
This morning, sitting under the stars for 2 hours before sunrise, I pondered the old light of stars.I had never thought about the journey light had to travel and retain its form. I don’t understand how we see the source as a pin prick of light from that distance… and someone standing right next to you (or half way across the earth) would see the same pin prick but it would be different photons hitting their retinas.
How does the light spread like that but retain any form? If photons move perceptibly (to our measuring equipment) in close distances in the double slit experiment, how do they stay in a tight enough formation over those vast distances to still look like a pin prick when they reach us. I’m not sure I’m asking the right question but I found my mind a little boggled by what is probably a simple to explain phenomenon that shouldn’t even be confusing. Probably a couple questions in there.
Thanks!
In: 11
The stars will be blurry if you focus your eyes on something close up. This has to do with the lens in your eye, size of your pupil size of your eyeball. For your eyes, things far away are all pretty much the same; if you look at the horizon, you are using the same “setting” as when you look at the stars; at that point, all light is effectively coming in as parallel rays, 1 mile, 100 miles or 100 light years away. Different lenses and cameras have different depth-ranges that they can focus on properly. Google Depth of Field for more info
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