Metamaterials
Posted by jgrant, 2006-11-30 12:44:00
In nature, all materials appear to obey the "right-hand rule." But oddly, a new category of materials called metamaterials exhibit an unusual "left-hand rule" and by doing so seem to turn everything on its head. If such a "left-hand rule" were the norm then the whistle of an approaching train would decrease in pitch and, as it passes by, increase the opposite of what normally happens due to the Doppler Effect.
