It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Recently, US scientists discovered that a commercially sold polymer - used to coat bowling pins, helmets, and golf balls - displays a curious property when shot at: it can immediately "pave over" the bullet holes.
www.newscientist.com...
That could lighten the loads of current military aircraft which use a heavy system in which bullets must pierce several different layers of material around a fuel tank. When pierced, rubber in one of the layers swells to plug up the bullet hole.