World

Of the four fundamental interactions, gravitation is the dominant at astronomical length scales. Gravity effects are cumulative; by contrast, the...

Cream skimmed from milk may be called « sweet cream » to distinguish it from cream skimmed from whey, a by-product of...

During the late 16th century it became fashionable for young European aristocrats and wealthy upper-class men to travel to significant...

There are a number of different theories and hypotheses regarding early state formation that seek generalizations to explain why the...