Inflating a Paper Balloon...
Have you ever seen a paper balloon? The Japanese t... ...ver seen a paper balloon? The Japanese toy called kamifusen has been around for over 100 years. Japanese math... ...up, but that's not the only way you can make your kamifusen round. The other way is surprising.[https://youtu... ...ist Ichiro Fukumori w...
https://www.neatorama.com/2017/11/23/Inflating-a-Paper-Balloon/
