4 ms·
The balloon has a loop underneath, you then let 2 kids (A and B), hold a thread between them, take a second thread, feed it through the loop, once around the th
by MindTwister 14y ago
The balloon has a loop underneath, you then let 2 kids (A and B), hold a thread between them, take a second thread, feed it through the loop, once around the thread between A and B, back through the loop and hands the ends to kid C and D. If any of the kids let go, the thread will unwind and the balloon is free.
- regularfry 14y agoAh, you beat me to it - that's exactly the arrangement I posted on the site.
- hdra 14y agoI don't really get it. Why would the AB thread go off if any one of the CD let go?
- regularfry 14y agoBecause the CD thread is the only thing stopping the AB thread from pulling back through the loop.