Scientists in the US built the first silicon transistor in 1947. Before that, the mechanics of computing had been performed by vacuum tubes, which were slow and bulky. Silicon changed everything.

The temporary head of Silicon Valley's largest water agency is facing questions over a potential conflict of interest as she oversees a contract with her husband's consulting firm. Melanie ...

Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that ... aluminum, silicon, and oxygen. The color comes from additional traces ...