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For he bore at the very top of it the seal and stamp of his patent the manifest impact of a bullet, diffracted by the power of Pong. The roots of his hair the terminus of blushes, according to all good novelists had served an even more useful purpose, by enabling him to blush again.
Wherever the rays of light have been diffracted under given conditions by the agency of water drops, prism of glass or other such transparent medium, and the ray has fallen on a suitable screen, lo! there has been the beautiful spectrum of light.
"Well, I suppose the atmosphere is oxygen and nitrogen, mostly; then there's the ionosphere and the ozone layer. As I remember, the color of the sky is due to the scattering of light light rays being diffracted in the air." "Beyond the air," Ser Perth said impatiently. "The sky itself!" "Oh space. We were just getting out there with manned ships. Mostly vacuum, of course.
It sounded like the beating of a stick against some hard substance. The nearer they came to daylight, the more distinct were the sounds. As heretofore explained, near the entrance the cave made a turn to the right at an angle, so that when at a distance of fifty feet from the opening it was impossible to see daylight, except what little was diffracted from the angle at the turn.
Of the corona seen around the sun during eclipses, the tendency now seems to be to return to the explanation long ago proposed and discarded; that it is neither telluric, i.e. produced by our atmosphere, nor, strictly or only, solar; but mainly selenic; that is, caused by the rays of the sun being diffracted around the edge of the moon intervening between us and it.
He believes, though, that these mysterious radiations are not light, because their behavior is essentially different from that of light rays, even those light rays which are themselves invisible. The Röntgen rays cannot be reflected by reflecting surfaces, concentrated by lenses, or refracted or diffracted.
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