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What is a hot air balloon?
The Montgolfier Brothers invented this machine, the first recorded technology to allow humans to fly!
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What is hydrogen?
This gas is very light, very abundant, and very flammable!
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What is China?
Miniature hot air balloons originated in this country and were used in warfare.
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What is helium?
Modern airships use this gas to float.
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What is the Archimedes Principle?
If an object is lighter than the amount of fluid it has displaced, it will float!
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Today, most airships are used for this purpose.
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What is a vent?
This flap lets hot air out, allowing a hot air balloon to descend.
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Where were airships invented?
In France.
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What is wicker?
Hot air balloons traditionally have this type of basket.
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What is New Jersey?
The Hindenburg crashed in this East Coast state in 1937 after the hydrogen gas caught fire.
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