Quote:
Originally Posted by elhigh
There's some firehouse in CA that's had the same bulb running nigh-onto-continuously for about 100 years (that's not an exaggeration); the bulb is never ever turned off. It even has its own webcam.
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They cheat... the power has been running through a resistor first, for decades, so its only been getting a fraction of the power it should be drawing.
Quote:
Originally Posted by DifferentPointofView
...Oh wait.. the lights are out... IT'S 5:30!? Even tho they say it's bad for your eyes, I watch tv and use the computer with the lights off, the screen gives off enough light right?  |
It's bad because of the sharp contrast for prolonged exposures. Reading in dim light is actually shown to have no long-term consequences.