4 posts tagged with light and dark.
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Brighten my office

Just moved into a windowless office. The lack of daylight is killing me. Please suggest hacks to brighten my office. [more inside]
posted by crazycanuck on Apr 19, 2010 - 24 answers

So SAD. Illuminate me.

I've been aware of a tendency toward winter blues for many years, but this winter is really kicking my ass already. I think I'm ready to look into a little treatment, and I'd like some advice. Yep, I've read all of the previous AskMes on this. [more inside]
posted by desuetude on Dec 19, 2007 - 19 answers

Catseyes

How quickly do other animals react to changes in light, and why are we so slow by comparison? [more inside]
posted by twine42 on Jun 14, 2006 - 12 answers

Why do porous objects appear darker when wet?

Why do porous objects (wood, textile, hair, etc) appear darker when wet then when dry? A googling gave me this ("surface reflection and refraction"), but that doesn't sound entirely reasonable, as it merely talks of light being scattered, but the light in question is already diffuse. This also gives some suggestions, but nothing conclusive. Any chem/physics MeFiers know this?
posted by fvw on Dec 12, 2003 - 7 answers

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