Image:Homopolar Motor Large.jpg

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[edit] Summary

Description

Construction of a simple homopolar electric motor. A neodymium disk magnet is attched to a ferromagnetic screw that is suspended (by magnetic attraction) to one end of an alkaline cell. A wire connects the other terminal of the battery to the edge of the magnet, completing the circuit.
Source

Own work; uploaded to replace lower-resolution version taken from Flickr.
Date

July 15, 2006
Author

Windell H. Oskay , www.evilmadscientist.com
Permission

CC-By-SA-2.5

[edit] Licensing

I, the author of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

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Creative Commons License
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Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified image.

Camera manufacturer Canon
Camera model Canon PowerShot S2 IS
Orientation Normal
Horizontal resolution 72 dpi
Vertical resolution 72 dpi
Software used QuickTime 7.1.2
File change date and time 11:42, 7 August 2006
Y and C positioning 1
Exposure time 1/30 sec (0.033333333333333)
F-number f/3.5
Exif version 2.2
Date and time of data generation 13:40, 15 July 2006
Date and time of digitizing 13:40, 15 July 2006
Shutter speed 4.90625
Aperture 3.625
Exposure bias 0
Maximum land aperture 3.625
Metering mode CenterWeightedAverage
Flash 16
Lens focal length 54.9 mm
Color space sRGB
Sensing method One-chip color area sensor
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