Monday, February 20, 2012
blog #3
THe machine on the left is a plain also known as a ramp or hill etc.This is udeful for making going goin down slops easier.The machine on the rightis a wedge also known as a knife, axe etc.These make cutting easier or splitting easier.The machine on the bottom right is a screw.These machines help tighten thing down ro hold things together.
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Your post is good but i would check spelling and typing errors next time.
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