/u/Tio76's posts in /r/askscience

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What makes a gas a greenhouse gas? For example, what are the molecular properties of carbon dioxide (CO2) that allow it to retain heat, that nitrogen (N2) lacks?

2462 upvotes

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Why is the severity of the urge to urinate not always correlated with the subsequent volume of urine?

1068 upvotes

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Where is the human body’s thermostat, and what is its molecular mode of action, i.e. how does it recognize the body is too hot or too cold?

48 upvotes

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When there is mechanical impingement upon a nerve resulting in loss of sensation (foot falling asleep) what is the molecular cause of signal transduction failure?

19 upvotes

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Why is there atomic motion? i.e. why do atoms move?

10 upvotes

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Why does the face droop as a result of a stroke or Bell’s Palsy?

2 upvotes

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What is the current status of artificial photosynthesis? What are the obstacles that still need to be overcome for this technology to be a viable source of energy for the world?

1 upvotes

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Do the ice packs (gel packs) used in shipping cold products have different thermal transfer properties than pure water ice? i.e. do they stay colder longer than pure ice in a given environment? If so, how?

1 upvotes

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How does the addition of a salt (e.g. NaCl or MgCl) to pure water affect the compressibility of the solution?

1 upvotes

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Are their structural differences in artificial fructose derived from corn and fructose found naturally occurring in fruits and vegetables? If so, what impact do these differences have on the metabolic breakdown of these sugars for energy production?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What makes a gas a greenhouse gas? For example, what are the molecular properties of carbon dioxide (CO2) that allow it to retain heat, that nitrogen (N2) lacks?	2462
Why is the severity of the urge to urinate not always correlated with the subsequent volume of urine?	1068
Where is the human body’s thermostat, and what is its molecular mode of action, i.e. how does it recognize the body is too hot or too cold?	48
When there is mechanical impingement upon a nerve resulting in loss of sensation (foot falling asleep) what is the molecular cause of signal transduction failure?	19
Why is there atomic motion? i.e. why do atoms move?	10
Why does the face droop as a result of a stroke or Bell’s Palsy?	2
What is the current status of artificial photosynthesis? What are the obstacles that still need to be overcome for this technology to be a viable source of energy for the world?	1
Do the ice packs (gel packs) used in shipping cold products have different thermal transfer properties than pure water ice? i.e. do they stay colder longer than pure ice in a given environment? If so, how?	1
How does the addition of a salt (e.g. NaCl or MgCl) to pure water affect the compressibility of the solution?	1
Are their structural differences in artificial fructose derived from corn and fructose found naturally occurring in fruits and vegetables? If so, what impact do these differences have on the metabolic breakdown of these sugars for energy production?	1