1905年的一天,美国伊得湖畔的公路上发生了一起车祸——两辆汽车相撞,而后又引起了一连串汽车相撞,现场一片狼籍,满地都是玻璃和金属碎片。事故发生后,和警察一同赶到现场的还有一位汽车厂的老板。这位老板一直被一个问题困扰着——当时生产汽车所用的钢材质量不好,容易折断,他一直想找到一种新的材料,能使钢材变硬 One day in 1905, a car accident occurred on the road along the Lake Ide in the United States. The two cars collided and then caused a series of car collisions. The scene was devastating and the ground was full of glass and metal fragments. After the accident, the owner of the car factory was rushed to the scene with the police. The boss has been plagued by a problem. At the time, the steel used to produce cars was of poor quality and was easily broken. He always wanted to find a new material that would harden the steel.