Thursday, November 3, 2011

Awesome ancient technology

I always love it when we discover X group of primitives had things we didn't know they had. This time, it's the vikings.

http://io9.com/5855860/the-secret-of-ancient-viking-navigation-was-transparent-crystals

Now I have a sudden urge to do something with polarization of light and *interstellar* navigation. I need to let this one percolate.