posted on Sep, 25 2012 @ 05:32 PM
Just came across this, and thought it was really cool. So here it is.
The idea for an eternal clock that would continue to keep time even after the universe ceased to exist has intrigued physicists.
However, no one has figured out how one might be built, until now. Researchers have now proposed an experimental design for a "space-time crystal"
that would be able to keep time forever.
When I first started reading this, it kind of hurt my head a little bit. I mean how could a clock keep time
If the universe no longer
Turns out what they are referring to is the thermodynamic equilibrium, otherwise known as the "Big Freeze" as some of you might be familiar with.
That is to say, that if the universe continues to expand as current models predict it is doing. Eventually it will expand so much that everything will
be unfathomable distances from everything else, stars will have stopped forming and all current stars will have burned out. In a nut shell, lots of
Anyway here is the description of how this eternal clock could theoretically be created.
Zhang and his colleagues suggest that a space-time crystal could be constructed using an electric field to trap charged atoms (called ions), and
taking advantage of the natural repulsion between two like-charged particles (positive and positive, or negative and negative), which is called
"The electric field of the ion trap holds charged particles in place and Coulomb repulsion causes them to spontaneously form a spatial ring
crystal," Zhang said. "Under the application of a weak static magnetic field, this ring-shaped ion crystal will begin a rotation that will never
stop. The persistent rotation of trapped ions produces temporal order, leading to the formation of a space-time crystal at the lowest quantum energy
And a picture for your viewing pleasure.
This proposed space-time crystal shows (a) periodic structures in both space and time with (b) ultracold ions rotating in one direction even at
the lowest energy state.
I'm not really sure what to make of this. A replacement for the current Atomic Clock
Do any of our Members who are more familiar with this type of science, know of any other applications for this?
I am very interested to here you responses.