Scientists reinvent the atomic clock, making it far more accurate. "Now, none of this is to say that modern atomic clocks aren’t good. In fact, the researchers note that if you started a modern atomic clock at the beginning of the universe’s birth — an estimated 13.8 billion years ago — and ran it through until today, it would only be about a half-second off. However, if that same clock used entangled atoms like MIT’s new model, it would be less than 100 milliseconds off, which is obviously a huge improvement." [BGR]