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lis lab3

on 12 June 2013

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Transcript of chris

Washing machine
by Christopher Nevius
The first washing machine was made in 1760.
Befor they had these machines they used there hands.
you can relax and clean at the same time.
back then it took 2 hours to clean now 30 minutes.
they used rocks and sand to clean
ks for watching
Full transcript