FOR KIDS: How to stop a speeding bullet

FOR KIDS: How to stop a speeding bullet

Scientists take a close look at a plastic that has Superman?s ability to stop a speeding bullet

By Stephen Ornes

Web edition: November 26, 2012

Scientists take a close look at a plastic that has Superman?s ability to stop a speeding bullet

By Stephen Ornes

Web edition: November 26, 2012

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A new experiment showed how a popular plastic can stop a speeding bullet. The supersmall glass bead in the middle of this image is speeding through plastic at 1,500 meters per second (nearly 1 mile per second). Red areas show where the plastic compresses most on impact.

Credit: Thomas Lab/Rice University

A bullet fired into a disk of polyurethane ? a type of plastic ? may not burst out the other side. In some instances, the bullet will stop in its tracks, frozen by the plastic and sealed inside. How a simple plastic can do this had left researchers scratching their heads. Until now.

Visit the new?Science News for Kids?website?and read the full story:?How to stop a speeding bullet

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Citations

R. Ehrenberg. Plastic fantastic seals in speeding projectiles. Science News Online, October 30, 2012. [Go to]

Source: http://www.sciencenews.org/view/generic/id/346660/title/FOR_KIDS_How_to_stop_a_speeding_bullet

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