Quantum entanglement is an odd phenomenon that can connect two or more particles over even vast distances. Scientists have now managed to entangle not two, not 100 (the previous record), but 3,000 atoms with a single photon, opening the door to atomic clocks more accurate than ever.
Atomic clocks are the most accurate way we have to count the passing hours and seconds. What makes them so much better than digital watches and grandfather clocks?
The National Institute of Standards and Technology has unveiled a new atomic clock, and boy howdy is it accurate.
Leap day comes around every four years (give or take a few), but just what is a leap second and why does it happen? This video explains the science behind our lost time.
Do you know where time comes from? Well, for all intents and purposes, it comes from one of the wings of the U.S. Naval Observatory, where the nation's primary atomic clock (and Joe Biden) live. Joe Biden is not the time master, however.
If you pride yourself on not only being the person who always arrives on time, but also the person with the most accurate time, then Bathys Hawaii's got one heck of a watch for you. This monstrous creation, now just a prototype, is an actual atomic clock you can strap to your wrist that guarantees accurate time for…
After the introduction of a new kind of atomic clock, the world's most expert timekeepers are considering making an update to how we measure a simple second. It would be more accurate, sure. But it would also force us rethink theoretical physics as we know it.
We know that the universe is roughly 13.8 billion years old—give or take a few hundred million years. Which seems like a decently accurate reading. But a new pair of clocks, which can measure time at a 1018 fractional level, makes our own measurements look like child's play. To have the same level of precision as…
Seriously? You care enough about temporal accuracy buy an atomic clock but you don't know how to build one? We won't tell.Thankfully DIY Physics has a great tutorial on how to build your own with parts from eBay.
For decades, the world has relied on incredibly accurate atomic clocks to keep time; but atomic clocks are much more consistant than the rotation of the Earth, which varies in speed ever-so-slightly as it spins about its axis. Consequently, every few years, the time based on the Earth's rotation falls out of sync with…
138 Million years. That's how long it's been since dinosaurs first appeared on Earth. And how long it'll take for this clock to lose a second.
That hunk of metal to the right is the world's most accurate clock, say people with more knowledge of time and atomic clocks than anyone else.
The slightest whisper of warmth induces miscalculations in the world's most precise atomic clock, researchers say. Accounting for this effect can make future clocks even more precise, eventually leading to atomic clocks that lose only one second every 32 billion years - about two and a half times the age of the…
Right now, an atomic clock works by sending atoms through a vacuum, microwaving them and measuring how many waves it takes to maximize atom florescence (that's 9,192,631,770 microwaves or one second).