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

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Without friction, would a ball still spin when going down a slope?

3188 upvotes

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How do we consistently measure air pressure at sea for the weather charts?

6 upvotes

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Why does reflecting off a surface of greater refractive index causes a phase shift?

1 upvotes

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In my e-card, what's the point of the big metal ring? How does it work?

1 upvotes

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How feasible is it to generate electricity beyond earth and transport it back?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Without friction, would a ball still spin when going down a slope?	3188
How do we consistently measure air pressure at sea for the weather charts?	6
Why does reflecting off a surface of greater refractive index causes a phase shift?	1
In my e-card, what's the point of the big metal ring? How does it work?	1
How feasible is it to generate electricity beyond earth and transport it back?	1