translation.en: The academics who were overseeing this work thought that that was too frivolous, so we built deadly serious applications like this optics prototyping workbench in which a toothpaste cap on a cardboard box becomes a laser.
translation.zh: 认为它太没份量， 所以我们后来做了一些非常严肃的应用， 比如这个光学试验台， 把牙膏帽放在纸箱子上 做成激光器，