SEAT BELTS In every motor vehicle accident (MVA), there are actually two collisions. The first is the impact of the vehicle. The second is the "human collision." If a car travelling 40 MPH collides with a stationary object, the human collision will take place at the same velocity. This is why unbelted occupants are so much more seriously injured than belted occupants. Imagine what it feels like to bang your chest against a steering wheel, or …
showed first 75 words of 1060 total

showed last 75 words of 1060 total
…motor vehicles is to add oxygen-containing compounds to gasoline. This has the effect of "leaning out" the air-to-fuel ratio, thereby promoting complete fuel combustion. The most common oxygen additives are alcohols or their derivatives. Several Western U.S. cities have successfully employed wintertime oxygenated gasolines for many years. The 1990 Clean Air Act expands this concept and requires that oxygenated gasolines be used during the winter months in certain metropolitan areas with high carbon monoxide levels.