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Issues
October 2009
ISSN 0002-9505
EISSN 1943-2909
LETTERS TO THE EDITOR
AWARDS
PAPERS
A pedagogical discussion of the gravitational energy radiated by Keplerian systems
Am. J. Phys. 77, 886–889 (2009)
https://doi.org/10.1119/1.3159610
Alternative derivation of the relativistic contribution to perihelic precession
Am. J. Phys. 77, 890–893 (2009)
https://doi.org/10.1119/1.3159611
PHYSICS EDUCATION RESEARCH
NOTES AND DISCUSSIONS
APPARATUS AND DEMONSTRATION NOTES
Tabletop demonstration of multiple source interference using ultrasonic transducers
Am. J. Phys. 77, 938–942 (2009)
https://doi.org/10.1119/1.3168976
Measurement of electrical conductivity in nonferromagnetic tubes and rods at low frequencies
Am. J. Phys. 77, 949–953 (2009)
https://doi.org/10.1119/1.3184154
BOOK REVIEWS
Ergodic Lagrangian dynamics in a superhero universe
I. L. Tregillis, George R. R. Martin
All objects and some questions
Charles H. Lineweaver, Vihan M. Patel
The most efficient thermodynamic cycle under general engine constraints
Christopher Ong, Shaun Quek
A story with twists and turns: How to control the rotation of the notched stick
Martin Luttmann, Michel Luttmann
The spinorial ball: A macroscopic object of spin-1/2
Samuel Bernard-Bernardet, Emily Dumas, et al.