Which of the following is not a product that has been made with Kevlar?
When was the first bulletproof vest invented?
For which of the following characteristics is Kevlar known?
Who is credited with inventing Kevlar?
Which of the following caused the search for a fabric like Kevlar?
A vest made of 15 layers of Kevlar with no steel plates could stop all but which of the following rounds?
Why did people begin using asbestos in buildings?
According to the article, how many American police officers are estimated to wear bulletproof vests daily?
How much stronger is Kevlar than steel?
What product was Kwolek trying to improve when she invented Kevlar?