Researchers develop new polymer film that bends with light

[anam_moon]

Researchers from science institute Riken and the University of Tokyo have succeeded in creating a polymer film that bends when exposed to light, providing hope for the development of new muscle-like devices and battery materials.

Comments

[devonapple.livejournal.com]

Oddly enough, there was a trap described in a D&D book, in which Dwarven artificers had created hooks made out of a particular metal which - coincidentally - would bend straight when they were exposed to light. They would set up net traps on cavern ceilings, held in place with these special metal hooks, and when humans started trespassing, usually carrying torches to let them see, the nets would fall on them as the hooks straightened out.