If you don't understand Danish, skip to 1:13
We were filling a balloon with helium to measure some things. When we were done we attached a phone to the balloon and started recording while it flew up and down again.
The string was 240meters, with a ~50degree angle at the end.
You can't hear it, but the balloon blew up at the end.
Google maps eat your heart out...
micktaylorbrighton 3 years ago
Spying on your town?
emptyangel 3 years ago