/u/[deleted]'s posts in /r/askscience

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What physically changes when you tune your radio to get different stations?

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Can a dog count objects with their sense of smell?

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Could a fellow redditor with access to a lab confirm theddman's cigarette butt radioactivity measurements?

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If humans have been burying their dead for a long time, and there have been 100 billion people believed to have existed - Why so hard to find graves of ancient people?

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What is a mathematical proof? How is something "proven"?

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Why do some people handle spicy foods better than others?

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Is there a limit to the size of the wavelength of an electromagnetic wave, both large and small?

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As a reformed creationist I am now thoroughly convinced that evolution is true. I do have one question though.

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When we have nightmares or stressful dreams, does our brain release the same chemicals (cortisol, norepinephrine, adrenaline, etc.) that it would if the scenarios of these dreams were actually happening in real life?

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Did the bodies of all early arthropods (sea scorpions, etc.) use hemocyanin as opposed to hemoglobin? If not, then where did hemocyanin come along?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What physically changes when you tune your radio to get different stations?	54
Can a dog count objects with their sense of smell?	54
Could a fellow redditor with access to a lab confirm theddman's cigarette butt radioactivity measurements?	54
If humans have been burying their dead for a long time, and there have been 100 billion people believed to have existed - Why so hard to find graves of ancient people?	54
What is a mathematical proof? How is something "proven"?	54
Why do some people handle spicy foods better than others?	54
Is there a limit to the size of the wavelength of an electromagnetic wave, both large and small?	54
As a reformed creationist I am now thoroughly convinced that evolution is true. I do have one question though.	54
When we have nightmares or stressful dreams, does our brain release the same chemicals (cortisol, norepinephrine, adrenaline, etc.) that it would if the scenarios of these dreams were actually happening in real life?	54
Did the bodies of all early arthropods (sea scorpions, etc.) use hemocyanin as opposed to hemoglobin? If not, then where did hemocyanin come along?	54