Today we're (micro)-machining glass with a fiber laser. Using a copper sulfate solution, we can etch glass with a pulsed ...

Have you ever noticed your gas canister expanding or collapsing? Find out why this happens, if the phenomenon is dangerous, and how to restore the cans.

The good news is that if Earth is incredibly unlucky and the asteroid does hit on Dec. 22, 2032, it will not destroy the ...