/u/autonova3's posts in /r/askscience

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Why are rocky planets spherical in shape and not irregular, like asteroids?

42 upvotes

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How exactly can computers be getting smaller, cheaper and more powerful - what specific breakthroughs are being made which are driving their rapid advancements?

3 upvotes

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Heavy elements are made in the cores of collapsing stars, in huge concentric shells, e.g. one shell for iron, one shell for carbon, etc. So how does the relatively tiny Earth have such a diverse mixture of elements? How do these huge element shells mix so thoroughly?

3 upvotes

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IPCC projections of global temperature which show us keeping temperature rise to 2C assume we develop technology to remove CO2 from the air. How realistic is this?

1 upvotes

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Why is body odour a product of puberty but is unattractive to the opposite sex? Shouldn't we have evolved to find it attractive?

1 upvotes

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What would happen if humanity stopped using pesticides?

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How did the female body evolve a menstrual cycle which is synchronised with the moon, and why?

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When you receive a mobile phone call in loudspeaker mode, how does the phone prevent feedback, i.e. the speaker outputting the caller’s voice and the mic receiving it and sending it back ad infinitum?

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What does the discovery of Proxima b do to the statistical estimate of total Earth-like habitable planets in our galaxy?

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There is now an awareness and effort to protect bees, due to their role as crop pollinators. Is there any other species which is crucial to our society and potentially vulnerable?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why are rocky planets spherical in shape and not irregular, like asteroids?	42
How exactly can computers be getting smaller, cheaper and more powerful - what specific breakthroughs are being made which are driving their rapid advancements?	3
Heavy elements are made in the cores of collapsing stars, in huge concentric shells, e.g. one shell for iron, one shell for carbon, etc. So how does the relatively tiny Earth have such a diverse mixture of elements? How do these huge element shells mix so thoroughly?	3
IPCC projections of global temperature which show us keeping temperature rise to 2C assume we develop technology to remove CO2 from the air. How realistic is this?	1
Why is body odour a product of puberty but is unattractive to the opposite sex? Shouldn't we have evolved to find it attractive?	1
What would happen if humanity stopped using pesticides?	1
How did the female body evolve a menstrual cycle which is synchronised with the moon, and why?	1
When you receive a mobile phone call in loudspeaker mode, how does the phone prevent feedback, i.e. the speaker outputting the caller’s voice and the mic receiving it and sending it back ad infinitum?	1
What does the discovery of Proxima b do to the statistical estimate of total Earth-like habitable planets in our galaxy?	1
There is now an awareness and effort to protect bees, due to their role as crop pollinators. Is there any other species which is crucial to our society and potentially vulnerable?	1