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![](https://webarchive.library.unt.edu/eot2008/20081107084833im_/http://nsf.gov/images/x.gif) Discovery Beyond Cold: How the World Works at Minus 459 Degrees
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![Computer graphic showing quantum vortices formed when atoms expand for 50 thousandths of a second.](https://webarchive.library.unt.edu/eot2008/20081107084833im_/http://nsf.gov/news/mmg/media/images/cold_temps1_f.jpg) |
If we let the atoms expand for even longer, 50 thousandths of a second, we can see that quantum vortices have formed. The vortices appear as holes in this image.
Credit: Brian DeMarco, University of Illinois |
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![Computer graphic showing quantum vortices, which are responsible for stopping atomic motions.](https://webarchive.library.unt.edu/eot2008/20081107084833im_/http://nsf.gov/news/mmg/media/images/cold_temps2_f.jpg) |
The vortices are made more visible in this image by subtracting off everything but the vortices. These vortices are responsible for stopping the motion of the atoms.
Credit: Brian DeMarco, University of Illinois |
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![Animation showing data used to measure how atoms move through the crystal of light.](https://webarchive.library.unt.edu/eot2008/20081107084833im_/http://nsf.gov/news/mmg/media/images/cold_temps_still_f.jpg) |
View video This animation shows data used to measure how atoms move through the crystal of light. These images are taken after the light is turned off, and the atoms are allowed to freely expand for about 20 thousandths of a second. If you look carefully, you can see that the motion slows down.
Credit: Brian DeMarco, University of Illinois
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![Graduate student David McKay gives a tour of Brian DeMarco's lab at the University of Illinois.](https://webarchive.library.unt.edu/eot2008/20081107084833im_/http://nsf.gov/news/mmg/media/images/lab_tour_still_f.jpg) |
View video Graduate student David McKay gives a tour of Brian DeMarco's lab at the University of Illinois.
Credit: Brian DeMarco, University of Illinois
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![Photo of David McKay, graduate student in Brain DeMarco's lab.](https://webarchive.library.unt.edu/eot2008/20081107084833im_/http://nsf.gov/news/mmg/media/images/cold_temps3_f.jpg) |
David McKay, graduate student in Brain DeMarco's lab at the University of Illinois.
Credit: Brian DeMarco, University of Illinois |
Download the high-resolution JPG version of the image. (2 MB)
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