Question

so i need help.. this has to do something with Kevlar. when was the first bulletproof vest invented? A) 1975 B) 1964 C) 1990 D) 2006

Answer 1

Answer: In the 1960s, new fibers were discovered that made truly bullet resistant vests possible. In the early 1970s, DuPont's Kevlar ballistic fabric was invented. In 1975-1976, scientists came to the conclusion that Kevlar was bullet-resistant, wearable and light enough for police officers to wear full-time. Hope this helps!