When HN users recommended it
1 HN user recommended this between 2021 and 2022, in 2 comments.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this between 2021 and 2022, in 2 comments.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
Here's a toy one, good reviews, but fragile (have tape) and prob use once -
https://www.amazon.com/TEDCO-Tedcotoys-Activity-50-foot-Ball...
Practically perhaps you could use the principal to manage buoyancy on lighter than air... unlikely though, to much added complexity.
The fact they are using solar balloons is pretty interesting.
Here's how they made it for ~$30 - https://journals.ametsoc.org/view/journals/atot/37/6/JTECH-D...
Fun version on Amazon for ~$30 - https://www.amazon.com/TEDCO-Tedcotoys-Activity-50-foot-Ball...