Incandescent bulb with colo...
Top spectrum is an incandescent bulb, followed by red, orange, green and blue color filters (the red is a glass photographic filter; the others are just plastic). I like to play with color, and loo...
Top spectrum is an incandescent bulb, followed by red, orange, green and blue color filters (the red is a glass photographic filter; the others are just plastic). I like to play with color, and loo...
Charles river water had settled for 7 days after collection. Spectra compared show it before and just after it was shaken to re-suspend solids. Water was in half-pint glass jar, not opened since co...
