askscience

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Since the perceived gravitational force at the center of the Earth is nearly nothing, is the center of the Earth experiencing time flowing faster relative to the surface of the Earth?	22
If I put a book into a chamber and removed all the air and brought the chamber up to a couple thousand degrees Fahrenheit, what would happen to the book? Can a book "burn" without oxygen?	16
Why does vertigo (such as is experienced in seasickness or after being spun around many times) make some people nauseous?	4
Why are green bananas slightly sour but they become sweet as they ripen over the next few days?	3
Why is it when I wear polarized sunglasses, all the side and rear windows to my car have a checkered pattern of dark splotches on them?	3
Are there any substances manufactured today that, when made into a sword, would be both stronger and significantly lighter than steel swords?	1
I have read that Ebola is not transmissible until a patient begins showing symptoms. Does this include sexual transmission or blood-borne transmission from sharing needles? Because I have also read that Ebola is sexually transmittable for up to 3 weeks after a patient has recovered.	1
How deterministic is weather? Is our inability to forecast a massive hurricane 50 year before it forms due to technological and observational limitations, or are weather systems literally not determined by physics that far in advance?	1
If future events are not considered certain and are instead seen as a set of probabilities, are past events fundamentally certain, or are they just a set of probabilities that lead to the present moment?	1
If future events are not considered certain and are instead seen as a set of probabilities, are past events fundamentally certain, or are they just a set of probabilities that could result in the present moment?	1

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