Top network posts

• 190 Why doesn't matter pass through other matter if atoms are 99.999% empty space?
• 32 Why doesn't the A380 use its outboard thrust reversers?
• 32 Why Didn't the USSR Build An X-15?
• 17 Proof of centripetal acceleration formula ($a_c = v^2/r$) for non-uniform circular motion
• 15 Why don't all aircraft use/need nacelle chines?
• 15 What aircraft has the highest suggested landing speed?
• 12 Why do co-rotating vortices coalesce, but not counter-rotating ones?
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