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

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[Astronomy] Why is a parsec defined as 3.13 light years instead of a more rounded number?

1285 upvotes

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[Biology] Is there any advantage to having a slitted pupil over a round pupil?

39 upvotes

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[Geology] Is it possible to determine the concentration of CO2 in the atmosphere during a long-passed volcanic event? If so, how would it be done?

10 upvotes

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When charging a battery, what is the best time to charge the battery to ensure total battery longevity?

5 upvotes

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[Physics] If we could precisely control speed of re-entry, would heat shielding be required on a spaceship?

1 upvotes

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[Physics] Why does Nuclear Fusion only occur at such high heat?

1 upvotes

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[Geology] If an asteroid were to strike the Earth, how would the shockwave translate into seismic tremors? How large would the rock have to be to be felt worldwide?

1 upvotes

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Question on the Kardashev scale: How ironclad is the scale's measurements?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
[Astronomy] Why is a parsec defined as 3.13 light years instead of a more rounded number?	1285
[Biology] Is there any advantage to having a slitted pupil over a round pupil?	39
[Geology] Is it possible to determine the concentration of CO2 in the atmosphere during a long-passed volcanic event? If so, how would it be done?	10
When charging a battery, what is the best time to charge the battery to ensure total battery longevity?	5
[Physics] If we could precisely control speed of re-entry, would heat shielding be required on a spaceship?	1
[Physics] Why does Nuclear Fusion only occur at such high heat?	1
[Geology] If an asteroid were to strike the Earth, how would the shockwave translate into seismic tremors? How large would the rock have to be to be felt worldwide?	1
Question on the Kardashev scale: How ironclad is the scale's measurements?	1