Why does looking at the sun only hurt when you look directly at it?

>>9118626
because the sun is hollow if you look at it, its actually a very large place where aliens live

if you see it in your peripherals, it casts a shadow that lets your brain understand what it is. If you look directly at it, it burns your retinas.

>>9118626
Huitzilopochtli cannot be looked at.

>>9118643
To elaborate on anon's post, your pupils are holes in your eye, and lead to your retinas. When you look directly at the sun, the light goes directly into your retinas, rather than going "over" the hole and casting a shadow. Think of it this way: if you walk past an open door, the people in the room get a glimpse of you, whereas if you walk in they get a good look.

With all this drama about eyesight protection and whatnot, I'm getting a little upset. They think people will stare longer than is safe because it's not painful to do so. It's still dangerous but less so. It's absurd to think I'll sustain actual damage by briefly peeking at a significantly darker light source.
Less than 3 seconds at a time with multi-minute cooldowns and recovery periods will be perfectly fine for people who's vision isn't already compromised [spoiler][looking at you glasses wearers][/spoiler]

Can I watch it through the front camera of my phone using it as it was a mirror?

>>9118648
>>9118643
What the fuck are you talking about?
Get that nonsense out of here.

The reason it hurts is because there is considerably higher density of retinal cells in there, but not only that, considerably more light reaches the retina because of the shape of the lens.
The fatter section of the lens focuses more light.
When light comes in at an angle, the light gets spread out more.
This is why the retina is less dense around the periphery than the middle. It's not a case of shitty evolution, it's actually exactly as how it should be. There is no reason to have a higher density retina in those regions because there is literally no focus in those areas.
We'd need entirely different lens layouts to perform that. Fly-like in design.

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>>9118626
you ever heard of someone going blind by looking at the sun? thats because is a psy op, sun gazing increase vitamin D and brain power.

I never understood why people make a big fucking deal about a big shadow.

What is so special to make everyone flip their shit?

Cause there's a spot in the center of the back of your eye where most of the receptors are
Can't remember what it's called

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i use a Welding glass and get this result, in México look less visible than in USA ( take with normal phone camera )

>>9120454
Wakka wakka wakka

>>9118705
Source? I want to believe.

>>9118626
UV Rays

>>9118626
Because your lens have a very powerful magnification. When you look directly at the sun, it's like putting a magnifying glass over a piece of paper, that piece of paper being your retinas.

>>9118705
Can you provide a source for this!

>>9118626

It does just not as much

>>9118626
Only when you're looking directly at it are the rays actually hitting straight from the tap. Otherwise, they're being reflected off something that's absorbing some of the light, or a lot of things in the case of ambient light.