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Issues

Volume 58, Issue 8
August 1990
American Journal of Physics Cover Image for Volume 58, Issue 8
All Issues
ISSN 0002-9505
EISSN 1943-2909

Letters To The Editor

The 1990 Oersted medal
Lawrence Cranberg
Am. J. Phys. 58, 711 (1990) https://doi.org/10.1119/1.16387
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Tilings and patterns−Omitted credit
Christian Janot
Am. J. Phys. 58, 711 (1990) https://doi.org/10.1119/1.16388
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Is quantum mechanics crazy?
Elden C. Whipple
Am. J. Phys. 58, 711–713 (1990) https://doi.org/10.1119/1.16389
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Symmetry considerations
Joe Rosen
Am. J. Phys. 58, 713 (1990) https://doi.org/10.1119/1.16390
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Early works on dynamical equilibrium between bosons and fermions
Guy Mayer
Am. J. Phys. 58, 713 (1990) https://doi.org/10.1119/1.16391
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Less is more
Hans C. von Baeyer
Am. J. Phys. 58, 713–715 (1990) https://doi.org/10.1119/1.16493
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Guest Comment

Guest Comment: How shall we teach physics in the 21st century?
Eugen Merzbacher
Am. J. Phys. 58, 717–718 (1990) https://doi.org/10.1119/1.16392
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Papers

American Association of Physics Teachers 1990 Oersted Medalist: Carl Sagan
Robert Resnick
Am. J. Phys. 58, 720 (1990) https://doi.org/10.1119/1.16393
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‘‘Croesus and Cassandra: Policy response to global warming,’’ Carl Sagan’s acceptance speech for the 1990 Oersted Medal presented by the American Association of Physics Teachers, 23 January 1990
Carl Sagan
Am. J. Phys. 58, 721–730 (1990) https://doi.org/10.1119/1.16394
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Quantum mysteries revisited
N. David Mermin
Am. J. Phys. 58, 731–734 (1990) https://doi.org/10.1119/1.16503
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A perspective on teacher preparation in physics and other sciences: The need for special science courses for teachers
Lillian C. McDermott
Am. J. Phys. 58, 734–742 (1990) https://doi.org/10.1119/1.16395
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The motion of wave packets through their expectation values and uncertainties
Daniel F. Styer
Am. J. Phys. 58, 742–744 (1990) https://doi.org/10.1119/1.16396
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About the statistical meaning of group velocity
Wen‐Cheng Wang; Cheng‐Ming Chen
Am. J. Phys. 58, 744–747 (1990) https://doi.org/10.1119/1.16397
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Physical holonomy, Thomas precession, and Clifford algebra
H. Urbantke
Am. J. Phys. 58, 747–750 (1990) https://doi.org/10.1119/1.16401
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The influence of distant boundaries on quantum mechanical energy levels
G. Barton; A. J. Bray; A. J. McKane
Am. J. Phys. 58, 751–755 (1990) https://doi.org/10.1119/1.16402
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Models of baseball bats
Howard Brody
Am. J. Phys. 58, 756–758 (1990) https://doi.org/10.1119/1.16378
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The Hall effect in copper: An undergraduate experiment
Charles E. Armentrout
Am. J. Phys. 58, 758–762 (1990) https://doi.org/10.1119/1.16379
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The fields of a bounded electromagnetic beam propagating through an air gap between two dielectrics for frustrated total reflection
Francisco Pomer; Joaquin Navasquillo
Am. J. Phys. 58, 763–768 (1990) https://doi.org/10.1119/1.16380
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Collapse of wavefunctions and probability densities
Joseph B. Keller
Am. J. Phys. 58, 768–770 (1990) https://doi.org/10.1119/1.16355
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An alternative treatment of the problem of image formation of an object through plane or spherical interfaces
K. Eftaxias; C. A. Londos; F. Vallianatos
Am. J. Phys. 58, 771–773 (1990) https://doi.org/10.1119/1.16356
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Simple forms for equations of rays in gradient‐index lenses
James Evans
Am. J. Phys. 58, 773–778 (1990) https://doi.org/10.1119/1.16357
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On heat conduction in one‐dimensional solids
Albert Díaz‐Guilera
Am. J. Phys. 58, 779–780 (1990) https://doi.org/10.1119/1.16358
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Oscillation of a gas balloon due to a temperature gradient
Walter Roy Mellen
Am. J. Phys. 58, 781–782 (1990) https://doi.org/10.1119/1.16359
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Force‐free magnetic fields
H. Zaghloul; O. Barajas
Am. J. Phys. 58, 783–788 (1990) https://doi.org/10.1119/1.16360
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Notes and Discussions

The field strength and the Lagrangian of a gauge theory
Palash B. Pal; K. S. Sateesh
Am. J. Phys. 58, 789–790 (1990) https://doi.org/10.1119/1.16361
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The measurement of surface tension by the method of direct pull
S. Y. Mak; K. Y. Wong
Am. J. Phys. 58, 791–792 (1990) https://doi.org/10.1119/1.16362
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Comment on ‘‘Heat experiment with a microwave oven,’’ by W. P. Lonc [Am. J. Phys. 57, 51–52 (1989]
Jonathan Mitschele
Am. J. Phys. 58, 793 (1990) https://doi.org/10.1119/1.16363
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Apparatus

Circuit for displaying hysteresis loop of two‐terminal inductors
Edward M. Kiess
Am. J. Phys. 58, 794–795 (1990) https://doi.org/10.1119/1.16364
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A computer‐based system for measurement and control of liquid level
L. Victoria; R. M. Barzanallana; J. A. Ibáñez
Am. J. Phys. 58, 795–796 (1990) https://doi.org/10.1119/1.16365
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Book Reviews

Quantum Paradoxes and Physical Reality
Franco Selleri; James T. Cushing
Am. J. Phys. 58, 797–798 (1990) https://doi.org/10.1119/1.16492
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The Physical Basis of the Direction of Time
H.‐Dieter Zeh; Don N. Page
Am. J. Phys. 58, 798–799 (1990) https://doi.org/10.1119/1.16366
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Temperature as joules per bit
Charles Alexandre Bédard, Sophie Berthelette, et al.
All objects and some questions
Charles H. Lineweaver, Vihan M. Patel
Internal ballistics of the sling
Mark Denny
Ergodic Lagrangian dynamics in a superhero universe
I. L. Tregillis, George R. R. Martin
The right way to introduce complex numbers in damped harmonic oscillators
Jason Tran, Leanne Doughty, et al.
A first encounter with exceptional points in a quantum model
C. A. Downing, V. A. Saroka
  • Online ISSN 1943-2909
  • Print ISSN 0002-9505

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