Tuesday, December 20, 2005

Geranium Photography

This is damn clever. Exposure to light causes, through photosynthesis, the production of starch. Iodine dyes starch a dark color. Combine these two factoids along with some patience and you can take a photograph on a geranium leaf. The site notes that this method would've allowed the Romans to take photographs.

1 comment:

Fishfrog said...

Is that the virgin Mary? It's a miracle!