IN a recent communication 1, Ahrens reported some data on the frequency distribution of some of the elements in igneous rocks, and enunciated a geo-chemical law to the effect that the concentration of ...

Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Khadija Khartit is a strategy, investment, and funding ...

You reach over a stove to pick up a pot. What you didn’t realize was that the burner was still on. Ouch! That painful accident probably taught you a lesson. It’s adaptive to learn from unexpected ...