Added: Jul 25, 2008
From: michaelmoval
Duration: 1:2
Today on CONSIDER THE FOLLOWING we're gonna talk about wheels...and levers. So please...CONSIDER THE FOLLOWING. "Mira!" that means "look". If I push down on this side of the lever, this side goes up. You can lift the can we can do some work. See the lever and pivots about the fulcrum--about the place in the middle. This side down. This side up. Now suppose we took the lever and folded it. So it looked like this...same fulcrum...same lever. But now we get this end to go up. I push on this end sideways...this end sideways...this end up. Okay, suppose we hooked a few of these levers together. So it looked like this. See, it kinda looks like a wheel, doesn't it? See it's a bunch of levers all pivoting around one fulcrum like a wheel. Take a look. See?
Channel: Education
Tags: bill consider following guy machines mickey nye science simple the
Rating: ( ratings) Views: Comments: 0
