Recent content by Rocky143

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    Graduate Questions on Relativity, Mirror World, Virtual Particles & Physics

    42 or Life, the Universe, and Everything I may be asking for trouble, but I'll take a stab at this. (Just saw House of Wax--which has a thermodynamic climax.) I'm not a physicist, but I play one on the Internet. My answers should be considered skeptically until a real physicist verifys...
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    High School Why is the Spectrum of Light Only 7 Colors?

    Food coloring My "P.S. Brown" posting above is a little screwy. Red and green make yellow. To play around with a computer program, set blue to zero and change values for red and green. Another way to observe brown as being dark yellow is to get a bottle of yellow food coloring. You'll...
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    High School Why is the Spectrum of Light Only 7 Colors?

    Why red to violet? That we can see electromagnetic radiation that ranges from red to violet is not a chance occurrence. The atmosphere is especially transparent to those wavelengths. Some animals, honeybees for example, also use ultraviolet. Some flowers look markedly different to bees...
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    Undergrad What is the science behind brick ovens and their superior cooking abilities?

    Thanks and... Thanks, Andrew. Excellent explanation for #2. I didn't understand #1. Uh...on second thought...once the fire is removed from the brick oven, it has a chance to equilibrate it's internal temperature by radiating more from the hotter parts and absorbing more in the cooler...
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    High School Why is the Spectrum of Light Only 7 Colors?

    P.S. Brown Brown is dark yellow. As someone indicated above, you can create brown by mixing red and green in the subtractive color system. Play around with this in a program like MSPaint, or Word, etc. that let's you specify intensities for R G and B. Windows let's you do this...
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    High School Why is the Spectrum of Light Only 7 Colors?

    Arbitrary, 6,000 The division of the visible spectrum into seven colors is purely arbitrary. I have read that a person can distinguish about 6,000 different colors. In fact, color identification systems, like the Munsel system, distinguish thousands of colors. My guess about Roy G. Biv is...
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    Undergrad What is the science behind brick ovens and their superior cooking abilities?

    Hello everyone, I have read on the Internet that you can get the "brick oven effect" -- uniform heat distribution and crisp bread crusts -- from a regular gas or electric oven by placing tiles and/or firebricks under the food, and tiles above the food (bricks are too heavy to go above). 1...