gh none of us have piece of flannel, having some powdered resin sprinkled on it, these is the apparatus before you. At the bottom of the ever seen either atoms or molecules. In fact, you can have itis thrown into longitudinal vibration. The center, s, isa sketch, Fig, 3, B represents the upper end… … iliar example of the way this contractile force is utilized. bly reach the roots of natural phenomena without the help In this case the amplitude of the vibration is so small that Thus we make ourselves acquainted with the sensible fact of atoms and molecules. We figure them as the constitu- no eye…
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