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Mathematics 15 Online
OpenStudy (anonymous):

#riddle 4 What invention lets you look right through a wall?

OpenStudy (alexandervonhumboldt2):

https://en.wikipedia.org/wiki/X-ray

OpenStudy (anonymous):

This isn't Math.

OpenStudy (anonymous):

no @AlexandervonHumboldt2

OpenStudy (scienceteen8):

give a hint plz lol

OpenStudy (darthvader2900):

Window!!

OpenStudy (darthvader2900):

Right?

OpenStudy (anonymous):

yep

OpenStudy (darthvader2900):

:)

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