How many helium balloons does it take to get an tin-whistle in the air? – Rapalje Show #33

This episode is all about balloons and a flying experiment with a tin-whistle: how many helium balloons will it take to get an carbon fibre tin-whistle in the air?

http://www.youtube.com/watch?v=fjNxwP0Zk84

Continue reading “How many helium balloons does it take to get an tin-whistle in the air? – Rapalje Show #33”