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For those of you who think they’ll one day go back in time, accidentally or not, here’s a handy cheat sheet you might want to consider bringing along with you.

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Thanks Chris!
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For those of you who think they’ll one day go back in time, accidentally or not, here’s a handy cheat sheet you might want to consider bringing along with you.

Thanks Chris!
this is actually a shirt design from ryan north/dinosaur comics.
http://www.topatoco.com/merchant.mvc?Screen=PROD&…
this is actually a shirt design from ryan north/dinosaur comics.
http://www.topatoco.com/merchant.mvc?Screen=PROD&…
In all honestly, that is absolute genius!
In all honestly, that is absolute genius!
In all honestly, that is absolute genius!
So… the point is that you should be the first to invent everything?… cool.
Good idea, but i stop reading when i got to the "…such that air above them progresses faster than air moving beneath them…", THAT'S FALSE