From brilliant blues to fiery reds, discover how nature crafts diamonds in every color, and why some shades are rarer than ...

This explains why respiration is not stoichiometric: a gradient, by its very nature, is composed of gradations. The molecular biological achievements of the last two decades culminated in 2010 ...

These photographs of the stunning and at times almost unbelievable color gradients in food, rocks, ornaments, leaves, and more are simply amazing! My favorites are these citrus slices, radishes ...

IF the horizontal layers of air were isothermal (the upper layers having the lower temperature), then the gradient winds at ... in BD of Mr. Dines's diagram in NATURE of March 8 (p.