More info here: http://www.k2.phys.waseda.ac.jp/F1movies/F1Prop.htm and here https://plus.google.com/u/0/114601143134471609087/posts/g9pP...
More info here: http://www.k2.phys.waseda.ac.jp/F1movies/F1Prop.htm and here https://plus.google.com/u/0/114601143134471609087/posts/g9pP...