Gemstones like precious opal are beautiful to look at and deceivingly complex. As you look at such gems from different angles ...

In early 2016, the Federal Bureau of Investigation reportedly paid more than $1.3 million for a software flaw that allowed it ...

Press the Shift key five times in succession -- Turns on Sticky keys, which change how shortcuts work so you don't have to press and hold multiple keys to trigger them. For example, under Sticky Keys, ...