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

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I live in an urban area. When I trim the edges of my lawn, is it more environmentally safe to sweep it into the gutter, or to put it in the trash for the city's incinerator?

1891 upvotes

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I can find info on how bumblebees fly. But nothing mentions how they can be so nimble. Without a tail, what mechanism allows them to manage such quick changes of direction?

425 upvotes

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Why does a bar of soap lose its lathering ability when it gets very small?

32 upvotes

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How can a digital clock drift in accuracy?

30 upvotes

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Why do we perceive violet as midway between blue and red if violet and red are at opposite ends of the visible spectrum?

20 upvotes

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Is chronic inflammation, and not cholesterol itself, the leading cause of heart disease?

15 upvotes

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What mechanism causes some farts to be hotter than others?

10 upvotes

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Does plate tectonic activity have a measurable effect on the weather?

7 upvotes

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I've only ever seen a lightbulb burn out at the moment someone switches it on. Why is that?

7 upvotes

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Why do earthquakes happen only in one place?

3 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
I live in an urban area. When I trim the edges of my lawn, is it more environmentally safe to sweep it into the gutter, or to put it in the trash for the city's incinerator?	1891
I can find info on how bumblebees fly. But nothing mentions how they can be so nimble. Without a tail, what mechanism allows them to manage such quick changes of direction?	425
Why does a bar of soap lose its lathering ability when it gets very small?	32
How can a digital clock drift in accuracy?	30
Why do we perceive violet as midway between blue and red if violet and red are at opposite ends of the visible spectrum?	20
Is chronic inflammation, and not cholesterol itself, the leading cause of heart disease?	15
What mechanism causes some farts to be hotter than others?	10
Does plate tectonic activity have a measurable effect on the weather?	7
I've only ever seen a lightbulb burn out at the moment someone switches it on. Why is that?	7
Why do earthquakes happen only in one place?	3