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

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We often hear about the fastest land animal on Earth being the cheetah. But what would the fastest land animal be over a distance of a marathon? How high would the top human runners rank?

14 upvotes

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Why do quarries have such clean and translucent water years after water bodies start appearing in them, while a swimming pool will turn into a nasty green swamp full of algae in a single summer if it isn't treated?

2 upvotes

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Why do quarries have such clean and translucent water years after water bodies start appearing in them, while a swimming pool will turn into the nasty green colour of the algae infesting it in a single summer if it isn't treated?

1 upvotes

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Why do quarries have such clean and translucent water years after water bodies start appearing in them, while a swimming pool will turn into a nasty green swamp full of algae in a single summer if it isn't treated?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
We often hear about the fastest land animal on Earth being the cheetah. But what would the fastest land animal be over a distance of a marathon? How high would the top human runners rank?	14
Why do quarries have such clean and translucent water years after water bodies start appearing in them, while a swimming pool will turn into a nasty green swamp full of algae in a single summer if it isn't treated?	2
Why do quarries have such clean and translucent water years after water bodies start appearing in them, while a swimming pool will turn into the nasty green colour of the algae infesting it in a single summer if it isn't treated?	1
Why do quarries have such clean and translucent water years after water bodies start appearing in them, while a swimming pool will turn into a nasty green swamp full of algae in a single summer if it isn't treated?	1