Quantum communication boasts ultra-high security as a quantum photon can neither be separated nor duplicated. It is hence impossible to wiretap, intercept or crack the information transmitted through it. Anton Zeilinger, an Austrian physicist at the

发表于:2019-01-19 / 阅读(71) / 评论(0) 分类 2016CRI中国国际广播电台

Random numbers are hugely important for modern computing. They're used to encrypt credit card numbers and emails. To inject randomness into online gaming. And to simulate super complex phenomena, like protein folding or nuclear fission. But here's th

发表于:2019-01-20 / 阅读(38) / 评论(0) 分类 2016年Scientific American(九)月

Books and Arts; Book Review; Fundamental physics; Big bang; 文艺;书评;基础物理学;宇宙大爆炸; Popular physics has enjoyed a new-found regard. Now comes a brave attempt to inject mathematics into an otherwise fashionable subject 科

发表于:2019-01-27 / 阅读(90) / 评论(0) 分类 经济学人文艺系列

Randy had received a robot for his last birthday. Hal had wheels and a cute face. He could talk. Randy adored Hal. He called Hal his baby brother. Hal could follow commands. If Randy said, Follow me, Hal followed him. Of course, Randy told Hal to fol

发表于:2019-02-15 / 阅读(33) / 评论(0) 分类 英文短篇故事(纽约)

It seemed as if there was no end of strangeness. For the first time, as James Trefil has put it, scientists had encountered an area of the universe that our brains just arent wired to understand. Or as Feynman expressed it, things on a small scale be

发表于:2019-02-17 / 阅读(31) / 评论(0) 分类 万物简史

Science and technology 科学技术 Cryptography 密码术 The solace of quantum 量子之慰 Eavesdropping on secret communications is about to get harder 现在想窃听秘密联系会越来越难 CRYPTOGRAPHY is an arms race between Alice and Bob,

发表于:2019-02-24 / 阅读(76) / 评论(0) 分类 经济学人科技系列