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

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I was taught in PE that improving your fitness requires an elevated heart rate for at least 15 minutes. Is this true?

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Do housecats suffer any hearing damage from having a bell on their collar?

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Why doesn't milk look yellow/orange after adding vitamin A?

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If there were an inter-species Olympics on Earth, at what distance would humans start to dominate the running events?

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At what point in human ancestry did women lose their facial hair?

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How does my 100% orange juice have no vitamin C in it?

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Why do I get airplane ear on the descent but not on the ascent?

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Why does a team of rowers row in unison?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
I was taught in PE that improving your fitness requires an elevated heart rate for at least 15 minutes. Is this true?	1
Do housecats suffer any hearing damage from having a bell on their collar?	1
Why doesn't milk look yellow/orange after adding vitamin A?	1
If there were an inter-species Olympics on Earth, at what distance would humans start to dominate the running events?	1
At what point in human ancestry did women lose their facial hair?	1
How does my 100% orange juice have no vitamin C in it?	1
Why do I get airplane ear on the descent but not on the ascent?	1
Why does a team of rowers row in unison?	0