The quantum stickiness between very close surfaces produces no drag when they move, researchers claim.
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References
Munday, J. N., Capasso, F. & Parsegian, V. A. Nature 457, 170–173 (2009).
Philbin, T. G. & Leonhardt, U. New J. Phys. (in the press, 2009). Preprint at: http://arxiv.org/abs/0810.3750
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Ball, P. Could nanomachines give friction the slip?. Nature (2009). https://doi.org/10.1038/news.2009.169
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DOI: https://doi.org/10.1038/news.2009.169