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At this point, most people have at least heard of blockchain, but it's become something of a running gag about how complex the technology can be to understand. You probably associate the technology with Bitcoin, but while this was the first real-world application of blockchain technology, it's far from the only use case. What is blockchain? While some people equate the invention of blockchain with Bitcoin's pseudonymous founder Satoshi Nakomota, the concept has been around since 1991, first coined in an article by researchers Stuart Haber and W. Scott Stornetta entitled "How to Timestamp a Digital Document “. Also known as distributed ledger technology (DLT), the blockchain is a record that anyone can add, that nobody can change, and that is not controlled by any one person or entity. The core concept is a public ledger with copies distributed across multiple sites, called nodes, which typically refer to individual computers with copies of the ledger. This is wh...

A product so ubiquitous that it spawned its own verb, Google accounts for 86 percent of the world's web searches, and thanks to the proliferation of smartphones, anyone can search for anything from anywhere—all you need is an internet connection. That means Google serves several billion searches a day. It's easy to take for granted what a modern web search can do for you, but it's truly amazing how seamless Google has made the internet. Google can tell you the weather, translate languages, define words, give you directions, and do so much more. When was the last time you argued with friends over something and didn't check Google for the answer? Even if you use Google multiple times a day, there's probably a lot you don't know about the search engine. If you've ever struggled to get the results you want, or just want to know a few inside tricks, the tips below will improve your Googling skills. 1. Refine Your Searches With Operators Google's search a...