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

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What effect are we seeing with the top /r/awesome post showing what looks like smoke rings from a race truck exhaust igniting after traveling several meters?

14 upvotes

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2 questions about the triple alpha process: Why are Li-5 and Be-8 so unstable? What is difference between "regular" and "Hoyle State" C-12?

12 upvotes

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Do we know if transuranic elements get created in big supernovas?

11 upvotes

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Have humans been cooking food for long enough for evolution to effect change on our teeth or digestion or other physiology?

5 upvotes

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WSJ: "If 25 rem gives you a 1% chance of getting cancer, then a dose of 2,500 rem (25 rem times 100) implies that you will get cancer (a 100% chance)." Good statistics or bad?

4 upvotes

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How near/big would a supernova have to be to appear brighter than the sun in our sky?

4 upvotes

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Scientific American has an article about using supercritical CO2 instead of steam as the working fluid in power generation turbines. What property of CO2 delivers "50% gains in thermal efficiency" and 4 stages instead of 15?

3 upvotes

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A sniper spotter uses binoculars to follow the bullet trajectory - what exactly are they looking at?

3 upvotes

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How much do our larger brains "cost" compared to our ancestors other closely related species?

3 upvotes

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How viscous is the tar in the la brea tar pits?

3 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What effect are we seeing with the top /r/awesome post showing what looks like smoke rings from a race truck exhaust igniting after traveling several meters?	14
2 questions about the triple alpha process: Why are Li-5 and Be-8 so unstable? What is difference between "regular" and "Hoyle State" C-12?	12
Do we know if transuranic elements get created in big supernovas?	11
Have humans been cooking food for long enough for evolution to effect change on our teeth or digestion or other physiology?	5
WSJ: "If 25 rem gives you a 1% chance of getting cancer, then a dose of 2,500 rem (25 rem times 100) implies that you will get cancer (a 100% chance)." Good statistics or bad?	4
How near/big would a supernova have to be to appear brighter than the sun in our sky?	4
Scientific American has an article about using supercritical CO2 instead of steam as the working fluid in power generation turbines. What property of CO2 delivers "50% gains in thermal efficiency" and 4 stages instead of 15?	3
A sniper spotter uses binoculars to follow the bullet trajectory - what exactly are they looking at?	3
How much do our larger brains "cost" compared to our ancestors other closely related species?	3
How viscous is the tar in the la brea tar pits?	3