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

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When you see a flickering dim blue glow in a window, you know someone's watching TV in the dark. But it's ALWAYS bluish, even though the TV shows certainly are not. Why?

1095 upvotes

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Spectacular picture of a lightning strike on a cable; why is the shower of sparks wider on the right?

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Is semen a non-Newtonian fluid? What about ketchup?

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Why does hearing running water make me have to pee?

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Could a diesel car run on whale oil?

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Is graphite a crystal?

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Is graphite a crystal?

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How could helium kill kudzu?

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Why doesn't NASA use a wind turbine to power a Mars rover? [Curiosity uses a plutonium-based thermoelectric supply because Spirit and Opportunity's solar arrays got coated with dust from the persistent winds.]

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
When you see a flickering dim blue glow in a window, you know someone's watching TV in the dark. But it's ALWAYS bluish, even though the TV shows certainly are not. Why?	1095
Spectacular picture of a lightning strike on a cable; why is the shower of sparks wider on the right?	3
Is semen a non-Newtonian fluid? What about ketchup?	1
Why does hearing running water make me have to pee?	1
Could a diesel car run on whale oil?	1
Is graphite a crystal?	1
Is graphite a crystal?	1
How could helium kill kudzu?	1
Why doesn't NASA use a wind turbine to power a Mars rover? [Curiosity uses a plutonium-based thermoelectric supply because Spirit and Opportunity's solar arrays got coated with dust from the persistent winds.]	0