Skip Nav Destination
Issues
December 2001
ISSN 0031-921X
EISSN 1943-4928
Letters to the Editor
Editorial
Notes
Figuring Physics
Articles
From Our Files
Physics Challenges
In My Opinion
Apparatus for Teaching Physics
WebSights
For the New Teacher
Physics Trick of the Month
Book Reviews
A “Perpetual Motion Machine” Powered by Electromagnetism
Hollis Williams
Sauntering Sauropods: The Preferred Walking Speeds of the Largest Land Animals That Ever Lived
Scott A. Lee, Justyna Slowiak
Jack Reacher and the Deployment of an Airbag
Gregory A. DiLisi, Richard A. Rarick