In this Numberphile video, Tadashi Tokeida, Japanese mathematician, explains the physics behind why paper balloon can be inflated just by tossing it around. The balloon he used in the video is kamifusen – a traditional Japanese paper balloon.
Source: Numberphile
ScienceSwitch 
Love it!
LikeLike
Thanks! 🙂
LikeLike
Fascinating and informative, great post.
LikeLike
Glad you liked it. Would have been better if there’s a way to inflate a rubber balloon the same way.
LikeLike
Great physics trick
LikeLike
Indeed 🙂
LikeLike