A man fills up on liquid nitrogen in a stable isotope laboratory in Boulder, Colorado.

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Scientist Jason Winokur fills up on liquid nitrogen at the Stable Isotope Laboratory at the Institute for Arctic and Alpine Research in Boulder, Colorado.

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Size: 5616px × 3744px
Location: Boulder,Colorado,USA
Photo credit: © Ethan Welty / Alamy / Afripics
License: Royalty Free
Model Released: No

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