Secret Code

http://news.sciencemag.org/sciencenow/2011/09/a-different-kind-of-secret-code.html

I think its pretty cool people are doing more things with bacteria colonies. I always thought they were interesting when working in my parent's labs and this along with a lot of other ideas (synthesized life, movie advertisements, etc.) makes bacterial growth seem really cool.

EDIT: ALSO, LESS IMPORTANTLY, MAGNETIC SHIELDS.
http://news.sciencemag.org/sciencenow/2011/09/physicists-devise-perfect-magnet.html

Now where is my mecha with an AV field or something going to be developed.