“9·11”事件发生后,凯文·斯通(Kevin Stone)一直追看电视直播,看着那些悲惨的画面,一个念头萦绕在他脑际,挥之不去:为何困在世贸中心里的人无法安然返回地面?“我告诉自己,这太荒唐了,”斯通回忆说。他是圣弗朗西斯科一名整形医生,也是成果累累的发明狂人。“应该有种更好的方法,帮助人们在灾难时刻成功逃离摩天大楼。”斯通发现,已有的高楼逃生设备不是有缺陷,就是不实用,于是他受渔线轮启发,设计了一种简单的新装置,依靠足够坚固的长绳,将 “9.11 ” incident, Kevin Stone has been chasing the television broadcast, watching those tragic pictures, a thought lingering in his mind, lingering: why trapped in the World Trade Center The people inside can not safely return to the ground? “” I tell myself, this is ridiculous, “Stone recalled. He is a plastic surgeon in San Francisco and also a fruitful mad inventor. ”There should be a better way to help people successfully escape the skyscraper in times of disaster." Stone found that existing high-rise escape devices were not flawed or impractical, so he was inspired by the reel A simple new device, relying on a long enough strong rope, will