THE paper by Messrs. Carpenter and Tamura in the November number of the Proceedings of the Royal Society, on "The Formation of Twin Metallic Crystals," presents a picture of the twin boundary ...

Kimberly Wright, 29, says that a part of her identity died when her twin brother passed away from an overdose.

and also suggests that Antarctic deep-water formation was reduced. The past changes in the polar twins may have much to tell us about their future. Climate models of anthropogenic warming predict ...