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+ - Hypodermic Needles No Match for Porcupine Quills->

Submitted by sciencehabit
sciencehabit (1205606) writes "To pierce your skin, a porcupine quill needs only about half the force of a hypodermic needle, according to a new study. The work, which also explains why the quills are so hard to remove, could improve the design of a variety of medical instruments, from devices that poke us to those that help keep wounds shut."
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Hypodermic Needles No Match for Porcupine Quills

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