下次打 Wargame 帶番把先! So, for an umbrella’s fabric - TopicsExpress



          

下次打 Wargame 帶番把先! So, for an umbrella’s fabric to stop even a 9 mm handgun bullet, it would have to weigh at least 7 kg (15.4 lb), and that’s the weight of the bulletproof fabric alone. In addition, Kevlar® is weakened by water and by UV rays, so the Kevlar® would have to be covered by waterproof and UV-protective fabric. To support all that fabric, the umbrella’s frame would have to be stronger and accordingly heavier. In the end, the umbrella would be very heavy and very expensive. This will give you an idea how expensive it would be: Kevlar®-covered ParaPactum umbrella made for bodyguards of French president Nicolas Sarkozy weighs 2.2 kg (4.8 lb) and costs about USD$17,000.00 apiece—and it does not stop bullets. youtu.be/vMF2RAbXnRY
Posted on: Fri, 17 Oct 2014 07:56:23 +0000

Trending Topics



Recently Viewed Topics




© 2015