Birefringent Hidden Messages
Maker Faire Bay Area 2015
Hands-on Activity
MAKER
Robert Hermes
Robert enjoys creating things that make him laugh and employ some principals of science. He's an Engineer by day, but rocks at being a docent at the California Academy of Sciences, Nerd Nite SF videographer and crazy inventor.
These hidden messages use a birefringent material that is visible when placed between two cross polarized filters. The polarizing table provides a light source, a diffusing layer and two layers of linearly polarized filters
What inspired you to make this project?:
I love the idea of hidden messages and seeing the unseen.
