/u/delvis401's posts in /r/askscience

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Growing up, it seemed like all my science teachers said something along the lines of "well, we're not even sure black holes exist..." Was this standard early education rhetoric or are black holes only now starting to be accepted as fact?

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If we had a heads-up that a discovery-like craft filled with artifacts from a distant galaxy was going to pass Earth, would it be possible to go up and "catch" it as it passes?

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Is it possible to sneeze while sleeping?

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If we could bore a hole straight through to the other side of the earth, how wide a diameter would it need to see sunlight through the other side when it's our night time?

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Laptop and phone batteries last longer now than they did two-three years ago. What has changed?

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Ridiculous question, but something my friend and I have wondered for six years now. Raindrops or grains of sand?

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Ignoring religion. When we die, do we become "free agents," of sort?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Growing up, it seemed like all my science teachers said something along the lines of "well, we're not even sure black holes exist..." Was this standard early education rhetoric or are black holes only now starting to be accepted as fact?	1
If we had a heads-up that a discovery-like craft filled with artifacts from a distant galaxy was going to pass Earth, would it be possible to go up and "catch" it as it passes?	1
Is it possible to sneeze while sleeping?	1
If we could bore a hole straight through to the other side of the earth, how wide a diameter would it need to see sunlight through the other side when it's our night time?	1
Laptop and phone batteries last longer now than they did two-three years ago. What has changed?	0
Ridiculous question, but something my friend and I have wondered for six years now. Raindrops or grains of sand?	0
Ignoring religion. When we die, do we become "free agents," of sort?	0