... green color on several species of African butterflies is caused by the nanoscale ... The butterfly wings' Distributed Bragg reflectors are not perfect. ...
... barbarians, in South especially waiguo emo (foreign devil) was used ... Red hair, a usual feature in all descriptions also in Japan and Korea, may have ...
... between far-flung societies was a key characteristic ... A thing out of its time (ana chronos) ... then 'Why did Rome fall?' is not a very good question ...