October 2008
Beginner to intermediate
328 pages
13h 54m
English
Content preview from The Best of Instructables Volume I
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3D Magnetic Field Viewer
A super-simple device that shows magnetic lines of force
Figure A: A 3D Magnetic Viewer ready to reveal invisible magnetic lines of force
My job takes me to various research labs where I install powerful magnetic systems and train technicians in how to use them. This time, I needed a magnetic field viewer to show lines of force. This Instructable shows how to construct such a device using nothing more than steel wool fibers and mineral oil. I built this one while at my hotel.
1. Get your supplies
I went to Wal-Mart and bought the following items:
Fine steel wool
Bottle of mineral oil in plastic bottle ...
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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.