(SOUNDBITE OF FANS WHIRRING) BAIR: And finally... MAY: Then the third phase is hot inflation, where we actually light the burners and we heat the air inside. And that's what causes the balloon to ...
Soon, hundreds of hot air balloons will fill the Albuquerque sky as part of the Albuquerque International Balloon Fiesta, but what goes into making a balloon fly? The answer is rooted in science. Hot ...
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