More ideas from David
Law of conservation of energy. These could potentially make some amazing micro tats.

Law of conservation of energy. These could potentially make some amazing micro tats.

How to win Rock-paper-scissors every time. From http://topicfire.com/share/How-to-win-Rock-paper-scissors-every-time-15034128.html

How to win Rock-paper-scissors every time. From http://topicfire.com/share/How-to-win-Rock-paper-scissors-every-time-15034128.html