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

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Has toothpaste improved over the years?

636 upvotes

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Hydrogen Fluoride Release Kills 5 - can someone explain how/why this is so deadly?

6 upvotes

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Why aren't all batteries rechargeable? Can they be?

3 upvotes

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Why do I sleep better in the cold?

1 upvotes

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If started at birth, could we somehow train our eyes to operate independently?

1 upvotes

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Is my hair always growing?

1 upvotes

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Do animals laugh?

1 upvotes

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is toothpaste actually getting better ALL the time?

1 upvotes

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If Beethoven were transported to the present day, would he be able to play electronic pianos/keyboards?

1 upvotes

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If I listen to a radio in another language long enough, will I eventually learn it?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Has toothpaste improved over the years?	636
Hydrogen Fluoride Release Kills 5 - can someone explain how/why this is so deadly?	6
Why aren't all batteries rechargeable? Can they be?	3
Why do I sleep better in the cold?	1
If started at birth, could we somehow train our eyes to operate independently?	1
Is my hair always growing?	1
Do animals laugh?	1
is toothpaste actually getting better ALL the time?	1
If Beethoven were transported to the present day, would he be able to play electronic pianos/keyboards?	1
If I listen to a radio in another language long enough, will I eventually learn it?	1