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

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How strong is the science about an anthropogenic global warming "tipping point" where runaway processes could continue heating the planet without human intervention?

73 upvotes

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Would an island at the north pole be submerged if the earth (slowly) stopped rotating?

51 upvotes

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If none of the primordial nuclides (Uranium etc.) had a long half life's would we be able to make power plants or bombs?

38 upvotes

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Are the absorption spectra of different metals in stars equally easy to detect?

33 upvotes

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What the smallest movement that the human eye can detect? Could a human eye perceive 1.5 arc seconds of movement under ideal conditions? What could it detect?

33 upvotes

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With a big enough optical telescope could the human eye perceive an "astronomy picture of the day" deep space object in full technicolor glory?

27 upvotes

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Can we faithfully emulate a single neuron using a computer?

27 upvotes

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How does the energy required to enrich fissile material compare to the energy released in reactors and bombs?

20 upvotes

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Is there any way science can determine from physical evidence the country of origin of a nuclear weapon after it has exploded?

17 upvotes

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Could an advanced civilization "salt" a star with a transuranic element to signal their existence? (Astronomers discovered 1 ppm lead in a star 1000 ly away)

14 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How strong is the science about an anthropogenic global warming "tipping point" where runaway processes could continue heating the planet without human intervention?	73
Would an island at the north pole be submerged if the earth (slowly) stopped rotating?	51
If none of the primordial nuclides (Uranium etc.) had a long half life's would we be able to make power plants or bombs?	38
Are the absorption spectra of different metals in stars equally easy to detect?	33
What the smallest movement that the human eye can detect? Could a human eye perceive 1.5 arc seconds of movement under ideal conditions? What could it detect?	33
With a big enough optical telescope could the human eye perceive an "astronomy picture of the day" deep space object in full technicolor glory?	27
Can we faithfully emulate a single neuron using a computer?	27
How does the energy required to enrich fissile material compare to the energy released in reactors and bombs?	20
Is there any way science can determine from physical evidence the country of origin of a nuclear weapon after it has exploded?	17
Could an advanced civilization "salt" a star with a transuranic element to signal their existence? (Astronomers discovered 1 ppm lead in a star 1000 ly away)	14