Tests to study effects on bodies of impact acceleration wave patterns were conducted. Embryos of fertilized hen's eggs were used as huge single cells, rats as vertebrates, and monkeys as an anthropoid close to man. The test was designed to find: the relationship between weight of test subject and tolerance to impact; the relationship of mortality to acceleration and duration time change, while impact speed is constant; and the difference (if any) in the degree of resultant injury between different acceleration wave patterns when under the same impact conditions. Effects were studied of both square and sawtooth impact wave patterns. It was found that for acceleration patterns under the same impact conditions (speed and absorption distance remaining constant), the square pattern is safer than the terminal peak sawtooth and symmetrical triangular stave patterns. As for injury to bodies inflicted at the same impact speed, acceleration acts as a greater factor than duration of time. And finally, for injury inflicted on bodies under the same impact conditions, the degree of injury increases as the body weight of the subject increases.
Abstract