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

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Does the predatory strategy of picking off the sick and injured ever cause predators to spread disease or infection?

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Which releases more carbon: using human labor for a task (ex: laying bricks), or using machines to do so?

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What's the carbon footprint of riding a horse? How does it compare to an average car?

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Assuming shape shifting was possible (e.g. Mystique from X-Men, the Animorphs, John Carpenter's The Thing), how much energy would it take to dramatically rearrange the cells in a body to a totally different form?

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How do body hairs know when to stop growing?

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Why do humans (and many other animals) have external testes?

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Why do the scents of pine and citrus evoke cleanliness? Do they have natural antimicrobial properties? Have they been used as cleaning agents (rather than simply aromas) in the past?

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What would happen if two planets of roughly equal size passed very close to one another?

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Why do sexual acts seem to have such a high potential to generate psychological trauma?

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Sometimes when I get sick, something happens in my nose and suddenly everything smells terrible. Is my body playing tricks on me, or am I smelling my infection?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Does the predatory strategy of picking off the sick and injured ever cause predators to spread disease or infection?	2
Which releases more carbon: using human labor for a task (ex: laying bricks), or using machines to do so?	1
What's the carbon footprint of riding a horse? How does it compare to an average car?	1
Assuming shape shifting was possible (e.g. Mystique from X-Men, the Animorphs, John Carpenter's The Thing), how much energy would it take to dramatically rearrange the cells in a body to a totally different form?	1
How do body hairs know when to stop growing?	1
Why do humans (and many other animals) have external testes?	1
Why do the scents of pine and citrus evoke cleanliness? Do they have natural antimicrobial properties? Have they been used as cleaning agents (rather than simply aromas) in the past?	1
What would happen if two planets of roughly equal size passed very close to one another?	1
Why do sexual acts seem to have such a high potential to generate psychological trauma?	1
Sometimes when I get sick, something happens in my nose and suddenly everything smells terrible. Is my body playing tricks on me, or am I smelling my infection?	1