Assumed Quote by Karl Ferdinand Braun

For X-rays, the phenomenon of diffraction by crystals was a natural consequence of the idea that X-rays are waves analogous to light and differ…

— Louis de Broglie

What could be heavier and more impenetrable than a rock, the densest of all forms? And yet some rocks undergo a change in their…

— Eckhart Tolle

Doth not this Æthereal Medium in passing out of Water, Glass, Crystal, and other compact and dense Bodies into empty Spaces, grow denser and…

— Isaac Newton

Now, the velocity of wave propagation can be seen, without the aid of any mathematical analysis, to depend on the elasticity of the medium…

— Albert A. Michelson

Crystals reveal their hidden structures only when broken.

— Sigmund Freud

When you're doing something where you really like the material, it doesn't matter what medium it's in.

— Christina Ricci

Crystals are amplifying minerals. You have a crystal in a radio - it amplifies the sound waves. You have a crystal in a television…

— Shirley MacLaine

“Theory and experiment both show us that light does not need a material medium for propagation. We would have no trouble understanding this if…

— Henning Genz

All the work of the crystallographers serves only to demonstrate that there is only variety everywhere where they suppose uniformity ... that in nature…

— Anonymous

When I'm listening to stuff on the computer or through a horrible little speaker on my phone, and then I hear the real version…

— Kevin Shields

With crystals we are in a situation similar to an attempt to investigate an optical grating merely from the spectra it produces... But a…

— Max von Laue

“The wavelength of a lightwave limits how small a thing you can see, for you cannot resolve an object smaller than the wavelength of…

— Lee Smolin