/u/CerealK's posts in /r/askscience

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The Boeing 747 was tested up to Mach 0.99. Could it fly above Mach 1 is safety wasn't a factor? If so, what would happen?

1650 upvotes

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On a motorway, what is the ideal speed for fuel economy when considering drag?

18 upvotes

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Wouldn't it make sense for airplane manufacturers to make the wheels spin either with a motor or the wind before a landing to preserve tires?

17 upvotes

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Would the fuel economy be noticeable if I would never have more than half a tank of fuel in my car?

4 upvotes

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We keep hearing about the demographic decline of Japan. Is there anything done to slow/stop it by the government or it's a lost cause?

3 upvotes

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Would my garden hose provide enough kerosene to a jet engine?

2 upvotes

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Is it possible to compress a liquid?

2 upvotes

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Why do high pitched sound hurt more than low pitched sounds, at the same decibel level?

1 upvotes

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Why do people don't always agree on what taste best. Is it physical or in the brain?

1 upvotes

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Why do I sometime feel like I'm hungover when I sleep too much?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
The Boeing 747 was tested up to Mach 0.99. Could it fly above Mach 1 is safety wasn't a factor? If so, what would happen?	1650
On a motorway, what is the ideal speed for fuel economy when considering drag?	18
Wouldn't it make sense for airplane manufacturers to make the wheels spin either with a motor or the wind before a landing to preserve tires?	17
Would the fuel economy be noticeable if I would never have more than half a tank of fuel in my car?	4
We keep hearing about the demographic decline of Japan. Is there anything done to slow/stop it by the government or it's a lost cause?	3
Would my garden hose provide enough kerosene to a jet engine?	2
Is it possible to compress a liquid?	2
Why do high pitched sound hurt more than low pitched sounds, at the same decibel level?	1
Why do people don't always agree on what taste best. Is it physical or in the brain?	1
Why do I sometime feel like I'm hungover when I sleep too much?	1