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

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How did prehistoric cultures deal with non potty-trained babies/toddlers? Were there prehistoric diapers?

11 upvotes

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How accurate are breathalyzers and what is there error rate? Would random use of the breathalyzer results in a significant number of false positives?

11 upvotes

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If low temperatures slow down chemical reactions, why do things appear to rust more quickly when left in the cold?

9 upvotes

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I remember in first year biology we learned that blue eyes = recessive allele so two blue-eyed parents will have a blue-eyed child. Are there any exceptions to this?

8 upvotes

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Do Deer/Moose whistles actually make it less likely to hit a moose/deer?

6 upvotes

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Why is it so hard to develop an inexpensive synthetic alternative to down insulation ?

6 upvotes

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A few trainers and nutritionists I know say that milk is bad for you, especially because of the lactose and other sugars. Is this supported by science?

6 upvotes

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Why are there so few insects in the ocean?

6 upvotes

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Are marine mammals able to regulate their buoyancy the way that fish can with their swim bladders? How can a whale dive while holding a massive lung full of air?

4 upvotes

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If cats are so careful about where they urinate and defecate, why do they apparently not care where they vomit?

4 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How did prehistoric cultures deal with non potty-trained babies/toddlers? Were there prehistoric diapers?	11
How accurate are breathalyzers and what is there error rate? Would random use of the breathalyzer results in a significant number of false positives?	11
If low temperatures slow down chemical reactions, why do things appear to rust more quickly when left in the cold?	9
I remember in first year biology we learned that blue eyes = recessive allele so two blue-eyed parents will have a blue-eyed child. Are there any exceptions to this?	8
Do Deer/Moose whistles actually make it less likely to hit a moose/deer?	6
Why is it so hard to develop an inexpensive synthetic alternative to down insulation ?	6
A few trainers and nutritionists I know say that milk is bad for you, especially because of the lactose and other sugars. Is this supported by science?	6
Why are there so few insects in the ocean?	6
Are marine mammals able to regulate their buoyancy the way that fish can with their swim bladders? How can a whale dive while holding a massive lung full of air?	4
If cats are so careful about where they urinate and defecate, why do they apparently not care where they vomit?	4