/u/datguy030's posts in /r/askscience

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What are the benefits/downsides of fasting, in terms of health?

304 upvotes

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When an animal is in trouble or needs something, and you help it out, does it feel any sense of gratefulness?

31 upvotes

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Why are recumbent bicycles faster than normal ones, and why aren't they used more commonly in races like the Tour de France?

24 upvotes

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Does the Earth ever have slight changes in rotation speed? If it does, why isn't there a massive amount of jerk causing objects to suddenly accelerate?

8 upvotes

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How do waves (like the radio waves used to communicate with the rover) move through space?

8 upvotes

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Why is electric potential the greatest when electric field is equal to zero, when considering two charges placed near each other?

6 upvotes

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Two auto-tech questions: 1) What physically happens when you press the accelerator to make the car move, somewhat detailed? 2) Can you briefly explain manual transmission?

5 upvotes

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What makes someone look like an adult (more info inside)?

5 upvotes

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What is capacitance? And when you solve an equation for it, what does this number represent?

5 upvotes

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What is the definition of musical pitch? Why don't things like snare drums have pitch (or do they, technically)?

4 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What are the benefits/downsides of fasting, in terms of health?	304
When an animal is in trouble or needs something, and you help it out, does it feel any sense of gratefulness?	31
Why are recumbent bicycles faster than normal ones, and why aren't they used more commonly in races like the Tour de France?	24
Does the Earth ever have slight changes in rotation speed? If it does, why isn't there a massive amount of jerk causing objects to suddenly accelerate?	8
How do waves (like the radio waves used to communicate with the rover) move through space?	8
Why is electric potential the greatest when electric field is equal to zero, when considering two charges placed near each other?	6
Two auto-tech questions: 1) What physically happens when you press the accelerator to make the car move, somewhat detailed? 2) Can you briefly explain manual transmission?	5
What makes someone look like an adult (more info inside)?	5
What is capacitance? And when you solve an equation for it, what does this number represent?	5
What is the definition of musical pitch? Why don't things like snare drums have pitch (or do they, technically)?	4