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

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If all plant life suddenly died, how long would it take for humans to "suffocate" due to lack of oxygen?

1058 upvotes

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Is is true that in the past 150 years earth magnetism has depleted 6%?

35 upvotes

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If the universe has been around for 13.7 billion years, why does anything still have radioactivity?

20 upvotes

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What is actually happening when you get dizzy?

7 upvotes

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How does our hair "know" when it needs to grow in order to reach its "maximum" length?

7 upvotes

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Does an increase in muscle mass affect your ability to accurately predict the weight of an object by holding it?

6 upvotes

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What speed is the universe expanding at, and how can we measure it?

4 upvotes

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Why can't humans artificially recreate life?

2 upvotes

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How does the C14 in minerals and rocks in the ground get replenished? (do they?)

2 upvotes

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How much of a genetic difference does it require to change someones skin color?

2 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If all plant life suddenly died, how long would it take for humans to "suffocate" due to lack of oxygen?	1058
Is is true that in the past 150 years earth magnetism has depleted 6%?	35
If the universe has been around for 13.7 billion years, why does anything still have radioactivity?	20
What is actually happening when you get dizzy?	7
How does our hair "know" when it needs to grow in order to reach its "maximum" length?	7
Does an increase in muscle mass affect your ability to accurately predict the weight of an object by holding it?	6
What speed is the universe expanding at, and how can we measure it?	4
Why can't humans artificially recreate life?	2
How does the C14 in minerals and rocks in the ground get replenished? (do they?)	2
How much of a genetic difference does it require to change someones skin color?	2