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

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how long does it take for the brain to go from asleep to "awake?" How does the brain do this so quickly?

757 upvotes

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Le Chatelier's principle - How do the reactants "know" that the concentration of products has changed?

16 upvotes

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Is the universe deterministic on a macro-scale? Does quantum probability mean that our large-scale universe is also non-deterministic?

12 upvotes

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If water is a liquid at room temperature, why does it still "dry up"?

10 upvotes

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Why are phase changes discrete?

9 upvotes

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Can someone help me understand the underpinnings of Heisenberg's Uncertainty Principle?

8 upvotes

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If i were to launch a copper coil across the earth's upper atmosphere, how fast would it have to go to generate a usable current?

6 upvotes

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How do we know that radioactive decay is truly random?

5 upvotes

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Can someone explain to me why it is that when you travel around the world going west, you are always going west, but if you travel going north, at some point you will be travelling south?

4 upvotes

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When a rocket motor fires, what surface is it applying force to on the rocket?

4 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
how long does it take for the brain to go from asleep to "awake?" How does the brain do this so quickly?	757
Le Chatelier's principle - How do the reactants "know" that the concentration of products has changed?	16
Is the universe deterministic on a macro-scale? Does quantum probability mean that our large-scale universe is also non-deterministic?	12
If water is a liquid at room temperature, why does it still "dry up"?	10
Why are phase changes discrete?	9
Can someone help me understand the underpinnings of Heisenberg's Uncertainty Principle?	8
If i were to launch a copper coil across the earth's upper atmosphere, how fast would it have to go to generate a usable current?	6
How do we know that radioactive decay is truly random?	5
Can someone explain to me why it is that when you travel around the world going west, you are always going west, but if you travel going north, at some point you will be travelling south?	4
When a rocket motor fires, what surface is it applying force to on the rocket?	4