Summer 2008 Questions and Resources

Perception Videos

door videos:



Find the Highest Note

Laser Speckle explanation


We purchase our colored filters from Holtz-Muller theater supply in San Francisco, #415-826-8383

They are $6.50 per sheet, 20 x 24 inches

TI uses Roscolux Medium Red #27

Roscolux #80 Primary Blue, and

Lee Filters #139 Primary Green.

Mix and Match

Add R G B to make other colors

Phosphorescent Vinyl

From educational innovations

Difraction grating

From Project Star



Scientific Explorations with Paul Doherty

© 2008

20 June 2008