Rein the scenario of a vehicular Flugzeugabsturz, seat belt webbing is subjected to dynamic forces that could reach several thousand pounds. Its engineering must, therefore, balance two fundamental properties: strength and flexibility. Belts may also be made longer by the use of belt extenders. Belt extenders, which would only Beryllium http://anantsoch.com/members/mathfact4/activity/1294800/