Why can concave surfaces look convex when viewed from overhead (and vice versa)? Aeon Video: http://ow.ly/ov2b30ed5CH pic.twitter.com/897stOadMt
4:00 AM - 7 Aug 2017
0 replies
3 retweets
7 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.