askscience

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Why does jerking a table cloth quickly from a table not disturb the plates but if you do it slow they all come off? Shouldn't there be the same amount of friction whether you pull it fast or slow?	51
Let's say that twice per month I find a random playing card on the sidewalk. After 5 years of this, what is the probability that I've found all 52 cards needed for a complete set? What about after 30 years?	2
Are there definite “basic” concepts that we know demonstratively that some very intelligent humans are capable of understanding but not others? Things on the limit of our intelligence that, no matter how much effort is given, most people are incapable of understanding?	2
What do we REALLY know about the difference between the brains of left handed people vs. right handed people?	1
What's the volume of water in a contrail compared to a naturally formed cloud?	1
How is it that one solar year is exactly 365.25 days? Is there a relationship between the Earth's rotation and its path around the sun?	1
I'm boiling some water. My water heater keeps water at 160 degrees. I start filling the pot from a standstill so the first bit of water (before the hot water gets there) is cold. If I keep adding more hot water, it will boil faster or slower?	1
Why did the "blue screen" in movies become the "green screen"?	1
When scientists theorize that their are an infinite number of universe, does that really mean there is a universe where the Germans that won WWII, or a universe where horses ride people? [serious question]	1
What are the biological advantages of different noses? Why do some peoples have pug noses, others have "Roman" noses, and yet others have hawkish noses?	1

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