Fluorine gas (F 2), which has been called chemistry’s hellcat, is so reactive that chemists have long assumed it does not occur in nature. Now researchers in Munich have evidence that the gas exists ...

Researchers have developed a new theoretical model explaining one way to make black silicon. The new etching model precisely explains how fluorine gas breaks certain bonds in the silicon more often ...

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. See Senior Director of TV Programming Meredith Speight’s recommendations from ...

How short is one second? The duration of a second can be defined as one 86,400 th of a 24-hour day. A bullet train traveling at 300 km per hour can cover a distance of 83 meters in one second. On ...

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. The Bay Bay Area-raised host Ericka Cruz Guevarra brings you context and ...