[ELI5] how do hot air balloons even work? How do they know where they’re going without steering?

Question

[ELI5] how do hot air balloons even work? How do they know where they’re going without steering?

In: 846

Answer 1

I haven’t seen anyone mention this, but there are also thermal airships as well. You can think of them as a blimp but one that uses hot air instead of helium.

These are technically “hot air balloons” but they do have a fan that lets them steer themselves.