「足跡錯視」(クレーター錯視の一種) http://www.psy.ritsumei.ac.jp/~akitaoka/footprint.html …pic.twitter.com/2J4PPAzDaA
6:17 PM - 23 Apr 2015
0 replies
7 retweets
5 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.