Take a paper bag, and a hair dryer and go outside in a chill morning....fill the paper bag with warm air from the hairdryer and release, it will fly away.
Do the same when its hot outside, it will not work....
The thing is that a Hot Air Baloon needs chill air to be able to fly since the hot air are working as thrust....
Winds are generally calm and favorable the first hours after sunrise and last hours before sunset
Hot air balloons use the fact that hot air rises as a way to make balloons fly. When the air inside the balloon is heated, it rises, and this creates lift which is used to make the balloon fly.
Hot air balloons can fly because hot air rises. When the air inside the balloon gets hot, it rises above the cooler air around it, and it lifts the balloon and any cargo and passengers with it.
a hot air balloons floats. something to do with buoyancy
Troposphere
Wind !... The balloons are filled with hot air, which causes them to rise. They are then at the mercy f the wind direction.
Buoyancy allows hot air balloons to fly.
air balloons or hot air balloons fly because they fill with a very light type of air. The air is hot air.
Hot air balloons use the fact that hot air rises as a way to make balloons fly. When the air inside the balloon is heated, it rises, and this creates lift which is used to make the balloon fly.
The hot air inside the balloon expands, making the hot air balloon fly.
Hot air balloons can fly because hot air rises. When the air inside the balloon gets hot, it rises above the cooler air around it, and it lifts the balloon and any cargo and passengers with it.
Hot air balloons
You can't physicly fly, but you can ride in air planes and hot air balloons.
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.
a hot air balloons floats. something to do with buoyancy
Troposphere
Wind !... The balloons are filled with hot air, which causes them to rise. They are then at the mercy f the wind direction.
neither..... they float with the wind! :-)