5G Is More Secure Than 4G and 3G—Except…

You've probably been hearing the hype about lightning-fast 5G for years now. And while the new wireless networks still aren't ubiquitous in the United States, 5G is slowly cropping up in cities from Boston and…

Mathematician Terence Tao Cracks a ‘Dangerous’ Problem

But legitimate proofs are rare. In the 1970s, mathematicians showed that almost all Collatz sequences—the list of numbers you get as you repeat the process—eventually reach a number that’s smaller than where you started—weak evidence,…