Natural Science

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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604November 13, 2007
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Media Contact:Karen Kreeger | Karen.kreeger@uphs.upenn.edu | 215-349-5658
Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604November 7, 2007
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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604November 1, 2007
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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604November 1, 2007

“Heftier” Atoms Reduce Friction at the Nanoscale, Study Led By Penn Researcher Reveals

PHILADELPHIA - A research team led by a University of Pennsylvania mechanical engineer has discovered that friction between two sliding bodies can be reduced at the molecular, or nanoscale, level by changing the mass of the atoms at the surface.  Heavier atoms vibrate at a lower frequency, reducing energy lost during sliding.

The study appears in the November issue of the journal Science.

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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604October 23, 2007
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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604October 23, 2007
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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604October 18, 2007
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Media Contact:Jordan Reese | jreese@upenn.edu | 215-573-6604October 17, 2007
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Media Contact:Jordan Reese | jreese@pobox.upenn.edu | 215-573-6604October 15, 2007
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Media Contact:Jordan Reese | jreese@pobox.upenn.edu | 215-573-6604October 11, 2007