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

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Is the expansion of space driven by classical or quantum physics rules?

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Is gravity an additive force? Or is it irrelevant to a powered object shot at the ground?

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Why did astronauts traveling to the moon experience microgravity?

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Is gravity "free energy"?

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Why does nuclear fusion release energy? If it's so hard to do, shouldn't the process consume energy?

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Do magnets give of constant fields or are there modulating frequencies?

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If space is expanding so quickly, what is happening to time?

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Why can a small air bubble in your IV kill you so easily? And if it can, why don't people die whenever a large cut exposes their artery to open air?

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This question has been weighing me down ;) What is the difference between warping spacing time, gravity wells, gravity fields, and gravitons?

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How close to the Earth would a large nuclear bomb detonation have to be in order to see it from the surface with the naked eye?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is the expansion of space driven by classical or quantum physics rules?	1
Is gravity an additive force? Or is it irrelevant to a powered object shot at the ground?	1
Why did astronauts traveling to the moon experience microgravity?	1
Is gravity "free energy"?	1
Why does nuclear fusion release energy? If it's so hard to do, shouldn't the process consume energy?	1
Do magnets give of constant fields or are there modulating frequencies?	1
If space is expanding so quickly, what is happening to time?	1
Why can a small air bubble in your IV kill you so easily? And if it can, why don't people die whenever a large cut exposes their artery to open air?	1
This question has been weighing me down ;) What is the difference between warping spacing time, gravity wells, gravity fields, and gravitons?	1
How close to the Earth would a large nuclear bomb detonation have to be in order to see it from the surface with the naked eye?	1