sa45s beauty full Engineer Guy vs. The Atomic ClockHere is the fifth video in Engineer Guy Series #4. The element of the week is cesium, as in “cesium fountain atomic clock.” Watching it, my jaw was on the floor by 0:20, as Bill opens by showing off the Symmetricom CSAC, which is the world’s first fully functional chip-scale atomic clock. It’s about the size of a quarter. Bill then segues, thusly, into the general theory of atomic clocks: “I’ll start with Jell-O,” he says, producing a quivering green mound of it. And it just gets better from there, wrapping up with a clear, concise explanation of the Global Positioning System, and why it couldn’t work, at all, without the use of atomic clocks. [Thanks, Bill!]

Update:  Woops!  Sorry for the dupe, folks!  Engineer Guy videos always get us really excited.

More:
How a cesium fountain atomic clock works

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


Related
blog comments powered by Disqus

Related Supplies at Maker Shed

Follow

Get every new post delivered to your Inbox.

Join 28,413 other followers