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

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A friend of mine doesn't recycle because (he claims) it takes more energy to recycle and thus is more harmful to the environment than the harm in simply throwing recyclables, e.g. glass bottles, in the trash, and recycling is largely tokenism capitalized. Is this true???

1401 upvotes

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For millions of years we didn't brush our teeth, floss, or use mouthwash. Why is it so important then?

48 upvotes

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Walking barefoot in the library at my college, I was just told by a janitor that I shouldn't do that because of all the chemicals they spray on the floor (to remove stains, etc.). In truth, how susceptible are my bare feet?

30 upvotes

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Wouldn't biking with your heel be more efficient than using the balls/toes of your feet?

4 upvotes

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Given that many of earth's non-sustainable resources will be gone within a century, how reasonable is it to assume we can easily mine landfills and garbage dumps for used materials?

3 upvotes

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The Earth's magnetosphere flips its axis every several hundred thousand years or so, temporarily shutting off itself. How does our atmosphere keep from being blown away due to solar wind? How does life survive?

2 upvotes

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At lunch, my mom and I tasted hot soup. I got my tongue burnt but she did not. Why?

2 upvotes

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How important is it to sleep horizontally?

1 upvotes

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Warning: NSFW! Biologists of r/science, how is this possible? NSFW

1 upvotes

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How universal are depression rates? More specifically, how does the prevalence of depression in contemporary US compare with the prevalence of depression in other cultures, present and past?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
A friend of mine doesn't recycle because (he claims) it takes more energy to recycle and thus is more harmful to the environment than the harm in simply throwing recyclables, e.g. glass bottles, in the trash, and recycling is largely tokenism capitalized. Is this true???	1401
For millions of years we didn't brush our teeth, floss, or use mouthwash. Why is it so important then?	48
Walking barefoot in the library at my college, I was just told by a janitor that I shouldn't do that because of all the chemicals they spray on the floor (to remove stains, etc.). In truth, how susceptible are my bare feet?	30
Wouldn't biking with your heel be more efficient than using the balls/toes of your feet?	4
Given that many of earth's non-sustainable resources will be gone within a century, how reasonable is it to assume we can easily mine landfills and garbage dumps for used materials?	3
The Earth's magnetosphere flips its axis every several hundred thousand years or so, temporarily shutting off itself. How does our atmosphere keep from being blown away due to solar wind? How does life survive?	2
At lunch, my mom and I tasted hot soup. I got my tongue burnt but she did not. Why?	2
How important is it to sleep horizontally?	1
Warning: NSFW! Biologists of r/science, how is this possible? NSFW	1
How universal are depression rates? More specifically, how does the prevalence of depression in contemporary US compare with the prevalence of depression in other cultures, present and past?	1