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
Web edition: November 26, 2012
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
R. Ehrenberg. Plastic fantastic seals in speeding projectiles. Science News Online, October 30, 2012. [Go to]