Quote:
Originally Posted by Christ
You can so look at the sun... it's just not a very bright idea.
Technically, when you look into some object whose radiant energy is "too high" for your eyes, your eyelids should close involuntarily. This isn't always the case, though.
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The problem is a curved object sends less total energy toward your eyes, but the brightness of the light concentrated on your retina is the same, just a smaller spot. So your eyes don't close because of the smallness of the bright spot, but there's just as much permanent damage.
Similarly, you change distance from a bright light and the brightness is still the same (aside from slight atmospheric scattering). Only the size of the projection onto your retina changes.
Plus if you're purposely looking at an object, like a car, the chrome pipes on your Harley, or a trailer, the blink reflex is overruled.