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

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What is the best method to chemically remove corrosion from aluminum?

2 upvotes

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I know true north is different than magnetic north. Does the magnetic north change over time? If so, how do we calibrate instrumentation to account for this phenomenon?

2 upvotes

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Is there any scientific evidence that the human body releases it's own pain medication upon death?

1 upvotes

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Is it possible that Mars may have been the first planet humans lived on and destroyed like we are currently doing to Earth?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What is the best method to chemically remove corrosion from aluminum?	2
I know true north is different than magnetic north. Does the magnetic north change over time? If so, how do we calibrate instrumentation to account for this phenomenon?	2
Is there any scientific evidence that the human body releases it's own pain medication upon death?	1
Is it possible that Mars may have been the first planet humans lived on and destroyed like we are currently doing to Earth?	0