I'm not a hammer I'm a crowbar (zsquirrelboy) wrote in little_details,
I'm not a hammer I'm a crowbar
zsquirrelboy
little_details

Bright Lights and Blindness

1. What candela intensity is required to blind a person? (I expect thatit's dependent on what the ambient level of light is before the flash,but how much?) I'm sure there's a range. Wikipedia says flash bangshave about one million candela; this one is rated at 6-8 million at 5 feet.

2. How much light is blocked by having your eyelids closed?
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