I was specifically talking about novelty balloons. Personally I think the danger is overblown in most situations, small rising pop (perhaps of flame), but if you have a problem with that, use air… with the goal of saving it for more important uses, like some of your examples. Blimps are another egregious waste, especially if usage scales up they need to be engineered for sustainable hydrogen.
I was specifically talking about novelty balloons. Personally I think the danger is overblown in most situations, small rising pop (perhaps of flame), but if you have a problem with that, use air… with the goal of saving it for more important uses, like some of your examples. Blimps are another egregious waste, especially if usage scales up they need to be engineered for sustainable hydrogen.
Someone needs to make a “balloon” you fill with normal air and then has a rechargable battery and 4 drone propellers to make it float up.
The balloon lasts much longer than a helium balloon, only downside is you have to charge it and it’s noisy.