Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 374
ubule, a (Fig. 262), and the tube below a be exposed to the direct rays of the sun or placed in the path of a beam of light from a lantern or porte-lumifere, the stream of water mingled with air which enters thetubule will appear like a streamof living fire, and has received thename of luminous… … Fig. 262. Experiment 8. — Place uncolored glass beads, or glassbroken into smallpieces in a test-tube. They appear not only white, because of diffusedreflection, but quite opaque, because of refraction and internal reflection.Pour some water into the tube, and it becomes somewhat…
Physics
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