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PERPETUAL MOTION entries in Index to How To Do It Information
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.

PERPETUAL MOTION
xx   PHYSICS

The almost perpetual motion machine. Includes instructions on construction and "technical explanation" of how it works.
BOYS' LIFE Dec 1969 (v.59#12) pg. 54

Reader comments on a December 1971 idea for an osmotic fountain concludes that it violates the laws of thermodynamics and thus cannot function.
SCIENTIFIC AMERICAN Apr 1972 (v.226#4) pg. 110

Experiments with linear track motors in which magnets attract other magnets in apparent perpetual motion.
SCIENTIFIC AMERICAN Mar 1982 (v.246#3) pg. 142