By Anupum Pant
Professor Yutaka Nishiyama, a mathematician from the Osaka University of Economics has devised a perfect way for you to create your own indoor paper boomerang. No longer would you have to get those relatively heavy wooden ones and find a huge open place to try and get them to return.
All you have to do is to download the appropriate PDF from his page here, print it out on a B4 paper and follow the instructions. If done right, you’ll have some thing that would go around in a 3-4 meter circle and come back to you. All of it indoors! Playing with it, you’d be doing something like this…
At first it looks like it would be tough to make it work. But trust me, it’s too easy to get it right.
via [FutilityCloset]