A catheter used to transfer vital fluids splits during surgery.A wheel detaches from a moving car on the highway.A small gear tooth breaks from a chisel and flies into a mechanic's eye.How did these accidents occur and were they preventable? Peter Lewis, Ken Reynolds, and Colin Gagg are seasoned forensic engineers who have been commissioned by insurance companies, lawyers, and private clients to investigate a variety of mechanical accidents that allegedly involved faulty equipment. The causes of these failures have varied - from manufacturing defects to user negligence to a combination of...