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

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What did early humans do in terms of oral hygiene?

20 upvotes

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What are the orbital mechanics involved with traveling to another star? Another galaxy?

1 upvotes

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If a 2-dimensional knife can slice a 3-dimensional object into 2-dimensional slices, could a 3-dimensional knife slice a 4-dimensional object into 3-dimensional slices? What would a 3-dimensional knife look like?

1 upvotes

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If you strapped a fan to your bike, pointed backwards, and powered it with the pedals, would your bike go faster because of the fan?

1 upvotes

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Are there primary colors in wavelengths we cannot see?

0 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What did early humans do in terms of oral hygiene?	20
What are the orbital mechanics involved with traveling to another star? Another galaxy?	1
If a 2-dimensional knife can slice a 3-dimensional object into 2-dimensional slices, could a 3-dimensional knife slice a 4-dimensional object into 3-dimensional slices? What would a 3-dimensional knife look like?	1
If you strapped a fan to your bike, pointed backwards, and powered it with the pedals, would your bike go faster because of the fan?	1
Are there primary colors in wavelengths we cannot see?	0