title: 你知道的最冷的冷知识是什么？
desc: 你知道哪些冷知识？<br>类似问题：
topic: 生活
content: 在辐射Fallout系列游戏里，人见人爱的避难所小人，这个标志性的动作是在干嘛？ As pointed out on Reddit ， Fallout's Vault Boy might not be giving us a cheerful thumbs-up at all， but rather might be checking to see how close he is to a nuclear explosion and the dangerous radiation it would bring.Apparently， if you see a nuclear explosion on the horizon， holding out your thumb at arms length could help
answerer_tags: 我一定是哪里疯了，为什么快乐成这样