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Published online 2 December 2003 | Nature | doi:10.1038/news031201-1
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Envelope physics sheds light on ice sheets
Stick and slip leads to jagged edges, show ripping experiments
Two physicists in Britain have been investigating why you can open an envelope cleanly with a paper knife but not with your finger. Similar ripping processes could explain the formation of jagged edges that sometimes interleave on adjacent ice sheets.
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