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You can do all of that using helium (or hydrogen…) plus it actually works. (China’s recent balloon shot down over Myrtle Beach didn’t use propellers, but others
by Robotbeat 4y ago
You can do all of that using helium (or hydrogen…) plus it actually works. (China’s recent balloon shot down over Myrtle Beach didn’t use propellers, but others have: https://twitter.com/mrjeffu/status/1621728807609843718?s=20&t=DZpOHCcaZbigSGz1FTTiBA https://twitter.com/mrjeffu/status/1621728807609843718?s=20&... )