How did the Enigma Machine work?

– [Jared] This is the Enigma machine. It looks like a typewriter but it has a very different purpose. During World War II it was used to keep messages secret…

How Bitcoin Works in 5 Minutes (Technical)

At a very basic level, Bitcoin is just a digital file or ledger that contains names and balances, and people exchange money by changing this file. When Bob sells Carol…