A good example of this is furnished by Huygens' principle, which in its original form discusses the propagation of light by asserting that the wave front is the envelope of secondary waves whose ...

I HAVE often been impressed by the scanty attention paid even by original workers in physics to the great principle of similitude. It happens not infrequently that results in the form of “laws ...

It means an X-ray telescope can usually only detect X ... threatening a great deal of astronomy Human eyes operate on the principle of refraction via a lens, aka the cornea. Lobsters, on the ...