http://en.wikipedia.org/wiki/August_Ferdinand_Mobius http://www.encyclopedia.com/doc/1G2-3407500199.html＿AlgTop6c: Non-orientable surfaces--the Mobius band (cont.) https://www.youtube.com/watch?v=kVwwhThrCaI&feature=fvsrhttp://www.dilbert…

TOKYO_SUNRISE-06:19 SUNSET-16:33 MOON-03.2DAYS_ Paradise Found http://ngm.nationalgeographic.com/2012/12/birds-of-paradise/laman-photography?source=hp_dl1_ngm_paradise_found201320121119将棋の日, ドラフト記念日, 蓮根の日, 国際学生の日(Inter…