Hidden costs renting landed?

[the lynx]

Just to make one thing clear: UV luminescence is very different from bioluminescence. Actually bioluminescence is more rare and you don't need any light source to have it happened. It relies on chemical reactions (i.e. enzymatic oxidation). UV luminescence is typically purely physical and it works this way that a material absorbs high energy associated with invisible UV light and then re-emits part of it as visible light.

Ah you're right. For one moment there, I wasn't being thorough and absent-mindedly looped these two together as the same. Thanks for the reminder.

[nakatago]

Probabaly the best known of example of bioluminescence for most people are lightning bugs.

Uh, fireflies?

One very interesting example of luminescence (neither UV not bio-) that happens everyday, practically to everybody but hardly anybody knows about this is the triboluminescence of scotch like tapes. If you are curious, take few types of such tapes (insulating, masking etc), stick them the siticky part together or to some glossy sheet of plastic, lock yourself in a pitch black room, wait till your eyes get use to the darkness and try to separate quickly the tapes from the substrate or themselves. The effect is not a big one but clearly visible and significant enough to partly expose an analog film (the middle format films are typically fixed to the reel with a scotch tape).

Oh wow, really? It didn't occur to me that that happens.

[sundaymorningstaple]

One and the same. Local name where I came from.

http://en.wikipedia.org/wiki/Firefly