Ask Science@lemmy.worldEnglish · 1 day ago

For how long must light be emitted for a human eye to perceive it?

Cursed_Fig@lemmy.world to

Ask Science@lemmy.worldEnglish · 1 day ago

Would a person notice a flash of light that lasted 10 ms?
Does the intensity of the light matter?
How much light is a photon, anyway? Does is take thousands or trillions of photons interacting with the eye to register as light?

1am where I live and I’m wondering

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Zephyr@sh.itjust.works
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1 day ago
Lol yeah it’s like ten light-years away.

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