https://www.youtube.com/watch?v=RN_p4Pv1NhU

http://www.welluneednt.com/entry/2015/01/16/232935

http://d.hatena.ne.jp/keyword/%CC%F4%B8%A6%BA%E4 wikipedia:薬研

http://news.infoseek.co.jp/Councilor2013/article/toyokeizai_20141226_56741?p=1 http://toyokeizai.net/articles/-/56741 田代富雄

https://www.youtube.com/watch?v=3TdhZscQu_M

http://www.tv-asahi.co.jp/onair/info.php?b=goodmorning&id=5600 http://d.hatena.ne.jp/tigerii/20110521/1305950653

http://www.ustream.tv/recorded/57266631

http://tron-30th.t-engine.org/tronproject.html

wikipedia:エーテル_(物理)

wikipedia:活字

https://www.google.co.jp/#q=%e3%83%a0%e3%82%ab%e3%83%87%e6%b2%b9

http://kanji.zinbun.kyoto-u.ac.jp/~yasuoka/publications/IEICE2010-1.pdf