Rare gemstones and crystals are highly prized not only for their stunning beauty but also for their elusive qualities. While popular gems like amethysts, topaz, and diamonds capture the hearts of many ...

Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, Vol. 80, No. 535 (Dec. 9, 1907), pp. 28-44 (17 pages) ...

Reviewed Work: On the Double Refraction of Light, According to the Principles of Fresnel. Mr. M'Cullagh's Papers by Mr. M'Cullagh Review by: W.

"What would happen if you assumed very much shorter waves to travel in the crystal?" This was the question posited by Max von Laue, then an associate professor at the Institute of Theoretical Physics ...