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'''Supersonic''' is a term used to describe things which fly faster than the [[speed of sound]]. At 70 degrees Fahrenheit, for an object to fly faster than sound, it must travel 761 miles per hour.  

'''Supersonic''' is a term used to describe things which fly faster than the [[speed of sound]]. At 70 degrees Fahrenheit, for an object to fly faster than sound, it must travel 761 miles per hour (1224.71 kilometers per hour).  

American [[P-47 Thunderbolt]]s in World War II came close to supersonic speeds in a dive, but the first person to break the sound barrier in level flight was [[Charles Yeager|"Chuck" Yeager]] in the [[X-1]] experimental aircraft.

American [[P-47 Thunderbolt]]s in World War II came close to supersonic speeds in a dive, but the first person to break the sound barrier in level flight was [[Charles Yeager|"Chuck" Yeager]] in the [[X-1]] experimental aircraft.

[[Category: Science]]

[[Category: Science]]