What is the name of the burner system that heats air inside a modern hot-air balloon?
Answer
A propane burner
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What is the name of the burner system that heats air inside a modern hot-air balloon?
Answer
A propane burner
On what date did the Montgolfier brothers stage the first public hot-air balloon flight?
Answer
4 June 1783
Which atmospheric layer contains most hot-air balloon flights near Earth’s surface?
Answer
Troposphere
What is the name of the hot-air balloon festival held annually in Albuquerque, New Mexico?
Answer
Albuquerque International Balloon Fiesta
Which French king witnessed the Montgolfier brothers’ animal-carrying balloon flight in 1783?
Answer
Louis XVI
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What is the name of the hot-air balloon festival held annually in Albuquerque, New Mexico?
Answer
Albuquerque International Balloon Fiesta
Which Montgolfier brother was the elder inventor of the 1783 hot-air balloon?
Answer
Joseph-Michel Montgolfier
Which gas law explains why heating air makes a hot-air balloon’s envelope expand?
Answer
Charles’s law
Who were the Montgolfier brothers who pioneered the first practical hot-air balloons?
Answer
Joseph-Michel and Jacques-Étienne Montgolfier
What is a balloon that uses sunlight to heat its internal air called?
Answer
Solar balloon