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

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How do the Voyager spacecraft keep their hydrazine propellant liquid?

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What's the latest news on wind power for large ships like tankers? Are rotor sails now energy-efficient? How do they stack up to turbosails?

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When birds take the train, do they know where they are going? Are they actively incorporating the train ride into whichever method(s) or model(s) they use to navigate?

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Could having a grain of rice stuck in a strange place affect the acoustics of your singing / speaking voice? To what extent would a well-placed grain of rice be able to affect your timbre?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How do the Voyager spacecraft keep their hydrazine propellant liquid?	1
What's the latest news on wind power for large ships like tankers? Are rotor sails now energy-efficient? How do they stack up to turbosails?	1
When birds take the train, do they know where they are going? Are they actively incorporating the train ride into whichever method(s) or model(s) they use to navigate?	1
Could having a grain of rice stuck in a strange place affect the acoustics of your singing / speaking voice? To what extent would a well-placed grain of rice be able to affect your timbre?	1