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

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I recently saw a piece of data saying that 70-95% of beetle species are still undiscovered. How do scientists predict how much of something they don't know or haven't discovered yet?

67 upvotes

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Do noise canceling headphones protect your hearing?

7 upvotes

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Assuming time travel is possible by exceeding the speed of light, how would the "direction" of travel be determined? In other words, how would we go ahead in time vs backward?

1 upvotes

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How do plants always know which way is up?

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What actually happens when the wind "blows out" a fire?

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Would it be possible for the wind to blow out a house fire like a person does to a birthday candle?

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Why are there so few large dogs in the wild, especially compared to big cats?

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What would happen if you threw a truckload of fireworks into an active volcano?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
I recently saw a piece of data saying that 70-95% of beetle species are still undiscovered. How do scientists predict how much of something they don't know or haven't discovered yet?	67
Do noise canceling headphones protect your hearing?	7
Assuming time travel is possible by exceeding the speed of light, how would the "direction" of travel be determined? In other words, how would we go ahead in time vs backward?	1
How do plants always know which way is up?	1
What actually happens when the wind "blows out" a fire?	1
Would it be possible for the wind to blow out a house fire like a person does to a birthday candle?	1
Why are there so few large dogs in the wild, especially compared to big cats?	1
What would happen if you threw a truckload of fireworks into an active volcano?	1