#light-sensitive

[kecobe]

Untitled László Moholy-Nagy (Hungarian; 1895–1946) Weimar, 1923–25 Photogram Grisebach, Berlin, Germany

[nightjartransmittranscend]

Just remembered this: Angry at my Dad

Seriously, when I was younger I used to squint all the time, so much that my dad would yell at me about it (who the hell yells at their kid for squinting?!)

But I squinted because everything was too bright. And my eyes never would adjust, not completely. Hours after I'd gone outside, I'd still have to squint.

No one even thought to tell me that you could just be more sensitive to light than others. I thought something was wrong with me because it hurt to not squint, and my parents just thought I was playing around?

But yeah, that's one of the things I'm still a little ticked about, that and the visene (eyedrops) ordeal.

[triviaproofing]

#139: “Human eyes are so sensitive that on a clear night when there is no moon, a person sitting on a mountain peak can see a match struck 50 miles away.”

Plausible.

Human eyes are indeed so sensitive that they can respond to a single photon (the photon is the equivalent of the atom for light).

But can people see something that’s 50 miles away? Yes. It’s called heat lightning. This happens on clear nights, usually. If there’s a lightning storm happening 50 miles away, the sound won’t carry, but the light will. Lightning is still bright, compared to a lit match, but under the circumstances given in this factoid, it’s plausible.