August 2007
Intermediate to advanced
190 pages
7h 38m
English
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1+2+3 Easy Motor
Make a spinning motor with a minimum of parts.
You will need: Two strong, metallic disc magnets approximately ¾" in diameter (larger in diameter than a AA battery), 6" length of stiff copper wire, AA battery, needlenose pliers
1. Make it.
First, if your copper wire is insulated, strip the insulation off. Bend the top of the wire into a hook shape. Press the tip into a sharp point with the pliers. Wrap the wire in a spiral form around the body of the battery, as shown in Figure 1. The wire should be just loose enough so it will not contact the battery case.
Next, place 2 metallic disc magnets on the battery’s negative terminal. Adjust the shape of the wire so the top rests on the center positive terminal and the bottom ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.