Ask an Explainer - Gravity & Air

Displaying records 191 to 200 of 304
Q: Why is it that when a jet flies overhead, its sound changes right after it passes me?
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Gravity & Air
Q: When I run, I feel wind in my face. Where is that wind coming from?
Categories:
Gravity & Air
Q: Why do rockets curve when they fly into space instead of going straight up?
Categories:
Gravity & Air
Q: How does gravity hold an object up in the air? How much can it hold?
Categories:
Gravity & Air
Q: What is an atmosphere?
Categories:
Gravity & Air
Q: What does heavier than air and lighter than air mean?
Categories:
Gravity & Air
Q: Could you really lift a house if you had enough balloons like in "Up"?
Categories:
Gravity & Air
Q: How do engineers select an appropriate place in space for orbiting satellite?
Categories:
Gravity & Air
Q: If there are currents in water, and air is a fluid like water, are there air currents as well?
Categories:
Gravity & Air
Q: Where does air pressure come from?
Categories:
Gravity & Air