Packing up the balloon, Alice Springs, Northern Territory, Australia.
Taken with Canon EOS550D. EFS 18-55MM Lens.
Hot air balloons are aircraft that gain their lift by heating a large contained envelope of air above ambient temperature. The envelope containing the warmer, less dense air rises and is used to lift the payload of basket, fuel tanks and passengers. The air in a typical balloon may be heated approximately 90 to 100 degrees C above ambient temperature. The balloon will then float at whatever altitude the mass of cold air it displaces equals the combined mass of the warmer contained air, balloon system and payload.