/u/Noclue55's posts in /r/askscience

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Why are some viruses airborne, and some are waterborne? If it's a structural property what is it?

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What does it mean by 'It takes 500 years for 1 inch of topsoil to form'? is that per mile or the entire earth or per meter squared?

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I've heard it takes a 100-500 years to make an inch of topsoil, what i've never heard is if its inch in a foot or an inch spread across the entire planet. What size of an area are they talking about when it comes to an inch of topsoil?

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Is it possible to theoretically make a flamethrower that runs on a battery/the air? How would it work?

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Is it possible to build a flamethrower that is battery powered or uses the air itself as fuel?

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Is it possible to weaponize liquid nitrogen? Such as make into a flamethrower-esque weapon or bombs/artillery delivery that could freeze large groups of people?

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Do animals talk to one another? I see a duck couple sitting next to eachother, do they converse like a couple would? Talking about random things like we would? Do cows in a field have discussions with one another?

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Is there any differences between birds that migrate south for the winter, and birds that stay active all seasons? (such as intelligence, feeding habits, behaviours)

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Why is the super guppy designed that the cargo hold is expanded upwards instead of it being expanded downwards.

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Why is the super guppy designed that the cargo hold is expanded upwards instead of it being expanded downwards?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why are some viruses airborne, and some are waterborne? If it's a structural property what is it?	1
What does it mean by 'It takes 500 years for 1 inch of topsoil to form'? is that per mile or the entire earth or per meter squared?	1
I've heard it takes a 100-500 years to make an inch of topsoil, what i've never heard is if its inch in a foot or an inch spread across the entire planet. What size of an area are they talking about when it comes to an inch of topsoil?	1
Is it possible to theoretically make a flamethrower that runs on a battery/the air? How would it work?	1
Is it possible to build a flamethrower that is battery powered or uses the air itself as fuel?	1
Is it possible to weaponize liquid nitrogen? Such as make into a flamethrower-esque weapon or bombs/artillery delivery that could freeze large groups of people?	1
Do animals talk to one another? I see a duck couple sitting next to eachother, do they converse like a couple would? Talking about random things like we would? Do cows in a field have discussions with one another?	1
Is there any differences between birds that migrate south for the winter, and birds that stay active all seasons? (such as intelligence, feeding habits, behaviours)	1
Why is the super guppy designed that the cargo hold is expanded upwards instead of it being expanded downwards.	1
Why is the super guppy designed that the cargo hold is expanded upwards instead of it being expanded downwards?	1