/u/Frostiken's posts in /r/askscience
Why is a Chihuahua and Mastiff the same species but a different 'breed', while a bird with a slightly differently shaped beak from another is a different 'species'?
1595 upvotes
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Why does cholesterol block arteries in the heart, instead of blocking capillaries all over the body and subsequently causing necrosis?
22 upvotes
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How does the body control urination and hydration? What determines whether water gets left in the body or turned to urine?
16 upvotes
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I am in space. I have a 'syringe' with a sealed plunger pushed down. I cap the end of the syringe. Would I be able to pull the plunger and 'create a vacuum' within the syringe without much effort?
9 upvotes
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Science fiction in movies and video games show brilliant nebulae in the night sky of alien worlds. If we were actually within such a structure, would the night sky actually look like that?
1 upvotes
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Based on what we know, and what we think we could know, would it ever be feasible to produce an antimatter 'generator'?
1 upvotes
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Every few years, the 'science' of health and nutrition changes radically, and almost everything we were told before ends up being completely wrong. Why should anyone listen to anything anyone in these fields has to say?
1 upvotes
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1 upvotes
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