Ask an Explainer - Structures & Materials

Displaying records 21 to 30 of 285
Q: Why does a spacecraft become very hot when it enters the Earth's atmosphere and how are the astronauts protected?
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Structures & Materials
Q: How many rotor blades does a helicopter require for it to be able to fly effectively?
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Structures & Materials
Q: What kind of metal is the ISS made of? Every answer I find says aluminum alloys, but aluminum has a melting point of 2,000 degrees F, and the thermosphere has an average temperature of 4,000 degrees F?
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Structures & Materials
Q: How and when is the cabin of a plane pressurized?
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Structures & Materials
Q: Why are titanium materials and composite materials used in aeroplane construction?
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Structures & Materials
Q: How do insects reduce or create drag?
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Structures & Materials
Q: Can wood be used to build spacecraft?
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Structures & Materials
Q: Did any of the Moon landings include experiments growing anything on the Moon or in space?
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Structures & Materials
Q: What is the difference between a piston engine and a gas turbine engine?
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Structures & Materials
Q: What are the uses for gyroscopes?
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Structures & Materials