DuPont Kevlar, one of the most widely used high performance materials turns 40 this fall. Although most famous for its use in "bullet-proof" vests, it is widely used commercially and within industry.
__________________
Off to take on other challenges. Good luck everybody! See you around the Interwebs.
My first exposure to Kevlar was in the summer of 75 when one of my fellow camp counselors showed up with a Kevlar racing canoe. At less than half the weight of the camp's Grumman canoes, we were quite amazed.