To fly
The hot air inside the balloon expands, making the hot air balloon fly.
Heat alone does not make things fly. However, heating air can affect the movement of objects in the air. For example, hot air balloons rise because the air inside the balloon is heated, making it less dense than the surrounding air, causing the balloon to float upwards.
air is heavier than balloon, air rises
The hot air inside the balloon expands, making the hot air balloon fly.
i think it takes a long time for a hot air balloon to fly
air is heavier than balloon, air rises
Yes they were first to fly the first hot air balloon
Hot air balloons can pick up and fly from just about anywhere. As long as the surface is flat a hot air balloon can fly from it.
An aeronaut flies a hot air balloon
hot air balloon
Hydrogen is less dense than air, so it creates a buoyant force that causes the balloon to rise. This is because the density of the hydrogen inside the balloon is lower than the surrounding air, making it lighter and causing it to float upwards.