/u/donrhummy's posts

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Is there a gradient at which bicycles become less efficient than walking?

340 upvotes • r/askscience

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If you could fill a 1-mile deep x 1-mile wide hole with Osmium (~4x as dense as Earth) would this noticeably increase gravity on that area?

16 upvotes • r/askscience

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[AMA Request] Libre Office Team

16 upvotes • r/IAmA

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Stuck almost a year pending renewal on expired Global Entry, who can I call?

3 upvotes • r/GlobalEntry

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Is Musk's Hyperloop feasible? Is there enough info to evaluate it?

2 upvotes • r/askscience

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What is the biggest horizontal distance a curve ball could possibly travel from a pitcher's mound to the plate?

1 upvotes • r/askscience

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Why is Newtonian gravity (objects attract) still taught in school when Relativity (objects warp spacetime and move on those curves) disproved it?

1 upvotes • r/askscience

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AMA Request: The kid who pulled a gun and almost shot Superman (George Reeves)

1 upvotes • r/IAmA

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How did they know space was cold?

1 upvotes • r/askscience

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Why do a human muscles atrophy with little use but a Lion's do not?

1 upvotes • r/askscience

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Title	Upvotes	Subreddit	Mark as read	Favorited	Rating	Add to a list
Is there a gradient at which bicycles become less efficient than walking?	340	askscience
If you could fill a 1-mile deep x 1-mile wide hole with Osmium (~4x as dense as Earth) would this noticeably increase gravity on that area?	16	askscience
[AMA Request] Libre Office Team	16	IAmA
Stuck almost a year pending renewal on expired Global Entry, who can I call?	3	GlobalEntry
Is Musk's Hyperloop feasible? Is there enough info to evaluate it?	2	askscience
What is the biggest horizontal distance a curve ball could possibly travel from a pitcher's mound to the plate?	1	askscience
Why is Newtonian gravity (objects attract) still taught in school when Relativity (objects warp spacetime and move on those curves) disproved it?	1	askscience
AMA Request: The kid who pulled a gun and almost shot Superman (George Reeves)	1	IAmA
How did they know space was cold?	1	askscience
Why do a human muscles atrophy with little use but a Lion's do not?	1	askscience