drop shadow
Over 600 magazines at your fingertips
Gizmag
World's most precise clock keeps time to 1 second in 3.7 billion years

Physicists at the National Institute of Standards and Technology (NIST) have built an enhanced version of an experimental atomic clock based on a single aluminum atom that would neither gain nor lose one second in about 3.7 billion years. That makes it th

Click "OK" to hide all articles from Gizmag.

You can unhide them at any time by changing your preferences in "My Account."

OK Cancel

No comments posted yet. Be the first!

or sign up to comment on this article.