NOVA Online | Balloon Race Around The World

Balloon Race Around The World menu (see bottom of page for text links)

Map of world, with balloon over India and jet streams marked

Correct! The cooler, denser air in the balloon has made you heavier. You've avoided the thunderstorm and caught the easterly current at 1,524 m (5000 ft). But there's no time for a nap now! If you stay on this course, you'll be heading right over Manila airport—not a good idea! You need to catch the southerly current at 2,286 m (7,500 ft), which will take you directly over Australia. What are you going to do?

I choose to turn the burner down so that the air will cool.
I choose to turn the burner up to heat the air.