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

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Why is it possible for vehicles to have gasoline and temperature gauges, but not for oil and coolant levels?

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How severe is the risk of damaging your liver with NyQuil or related products? And why?

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Why do we need Iodine, and why is it so scarce in our diet?

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Why do some liquids have more of a gradient viscosity (like alcohol and honey), getting more viscous the colder they get, but others have no gradient and go straight to solid (like water)?

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How do some microorganisms become resistant to things like hand-sanitizer and antibiotics, and why don’t they become resistant to soap?

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If solids are more heat-conducive than gases, why are materials like fiberglass and foam used for home insulation, and not just simple air gaps?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why is it possible for vehicles to have gasoline and temperature gauges, but not for oil and coolant levels?	1
How severe is the risk of damaging your liver with NyQuil or related products? And why?	1
Why do we need Iodine, and why is it so scarce in our diet?	1
Why do some liquids have more of a gradient viscosity (like alcohol and honey), getting more viscous the colder they get, but others have no gradient and go straight to solid (like water)?	1
How do some microorganisms become resistant to things like hand-sanitizer and antibiotics, and why don’t they become resistant to soap?	1
If solids are more heat-conducive than gases, why are materials like fiberglass and foam used for home insulation, and not just simple air gaps?	1