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

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Can lasers be generated naturally, or are they a strictly technological creation?

3448 upvotes

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If petroleum is left untouched/unexploited underneath Earth's surface, does it eventually turn into something else or does it stay petroleum indefinitely?

14 upvotes

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Does sunblock lotion with a high FPS inhibit the body's production of Vitamin D?

9 upvotes

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In the male population, has any correlation been found or implied between active sex life / frequent masturbation and a lower incidence of prostate cancer?

3 upvotes

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When atoms form molecules, is it via electron wave functions? One atom's probabilities binding with another atom's probabilities, or is it more concrete in the physical sense?

1 upvotes

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Since photons move at the speed of light - their emission at one point in space and absorption at another point being simultaneous from their vantage point - does this mean that in the field they inhabit, neither time nor space actually exist?

1 upvotes

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Two black holes are spiraling around each other. What happens when their event horizons meet? What goes on at the intersection?

1 upvotes

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Particles in the LHC are crashed against each other at over 99% the speed of light. From our perspective, new particles exist for an instant. From the particles' perspective, for how long do they exist?

1 upvotes

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There is strong evidence that atmospheric perturbations caused by the Ethiopian highlands generate Atlantic hurricanes. What causes typhoons in the western Pacific and cyclones in the Indian Ocean?

1 upvotes

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I cannot move back and forth in time. Can I move back and forth in space?

0 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Can lasers be generated naturally, or are they a strictly technological creation?	3448
If petroleum is left untouched/unexploited underneath Earth's surface, does it eventually turn into something else or does it stay petroleum indefinitely?	14
Does sunblock lotion with a high FPS inhibit the body's production of Vitamin D?	9
In the male population, has any correlation been found or implied between active sex life / frequent masturbation and a lower incidence of prostate cancer?	3
When atoms form molecules, is it via electron wave functions? One atom's probabilities binding with another atom's probabilities, or is it more concrete in the physical sense?	1
Since photons move at the speed of light - their emission at one point in space and absorption at another point being simultaneous from their vantage point - does this mean that in the field they inhabit, neither time nor space actually exist?	1
Two black holes are spiraling around each other. What happens when their event horizons meet? What goes on at the intersection?	1
Particles in the LHC are crashed against each other at over 99% the speed of light. From our perspective, new particles exist for an instant. From the particles' perspective, for how long do they exist?	1
There is strong evidence that atmospheric perturbations caused by the Ethiopian highlands generate Atlantic hurricanes. What causes typhoons in the western Pacific and cyclones in the Indian Ocean?	1
I cannot move back and forth in time. Can I move back and forth in space?	0