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Issues

Volume 59, Issue 6
June 1991
American Journal of Physics Cover Image for Volume 59, Issue 6
All Issues
ISSN 0002-9505
EISSN 1943-2909

Guest Comment

Guest Comment: The teacher/researcher: An endangered species?
Thomas D. Rossing
Am. J. Phys. 59, 487–488 (1991) https://doi.org/10.1119/1.16803
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Editorial

Editorial: An acknowledgment to AJP’s 1990 reviewers
Steven K. Blau; Robert H. Romer
Am. J. Phys. 59, 489 (1991) https://doi.org/10.1119/1.16804
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Awards

American Association of Physics Teachers 1991 Oersted Medalist: Freeman J. Dyson
Gerald F. Wheeler
Am. J. Phys. 59, 490 (1991) https://doi.org/10.1119/1.16805
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‘‘To teach or not to teach,’’ Freeman J. Dyson’s acceptance speech for the 1991 Oersted Medal presented by the American Association of Physics Teachers, 22 January 1991
Freeman J. Dyson
Am. J. Phys. 59, 491–495 (1991) https://doi.org/10.1119/1.16806
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American Association of Physics Teachers: Citations for Distinguished Service for 1991
Am. J. Phys. 59, 496 (1991) https://doi.org/10.1119/1.16807
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Papers

Demonstration of helicity conservation during magnetic reconnection using Christmas ribbons
Hans Pfister; Walter Gekelman
Am. J. Phys. 59, 497–502 (1991) https://doi.org/10.1119/1.16808
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Two‐level quantum systems: States, phases, and holonomy
H. Urbantke
Am. J. Phys. 59, 503–509 (1991) https://doi.org/10.1119/1.16809
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Improved numerical solutions of Laplace’s equation
Philip W. Gash
Am. J. Phys. 59, 509–515 (1991) https://doi.org/10.1119/1.16810
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The Doppler interpretation of Ro/mer’s method
V. M. Babović; D. M. Davidović; B. A. Aničin
Am. J. Phys. 59, 515–519 (1991) https://doi.org/10.1119/1.16811
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On the time‐dependent, generalized Coulomb and Biot–Savart laws
Tran‐Cong Ton
Am. J. Phys. 59, 520–528 (1991) https://doi.org/10.1119/1.16812
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Physics and roller coasters—The Blue Streak at Cedar Point
Robert R. Speers
Am. J. Phys. 59, 528–533 (1991) https://doi.org/10.1119/1.16813
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Fluid uptake by a blotter
Charles P. Bean; Jeffrey I. Bubb; Dominick F. Fanelli
Am. J. Phys. 59, 533–535 (1991) https://doi.org/10.1119/1.16814
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A computer model of laser action in the teaching of computational physics
D. G. H. Andrews; D. R. Tilley
Am. J. Phys. 59, 536–541 (1991) https://doi.org/10.1119/1.16815
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Laboratory studies of air flow visualization using holographic interferometry
K.‐E. Peiponen; R. M. K. Hämäläinen; Toshimitsu Asakura
Am. J. Phys. 59, 541–544 (1991) https://doi.org/10.1119/1.16816
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A simple system for radon‐in‐air concentration determinations
A. J. Howard; S. E. Carroll; W. P. Strange
Am. J. Phys. 59, 544–550 (1991) https://doi.org/10.1119/1.16817
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Generalized power versus efficiency characteristics of heat engines: The thermoelectric generator as an instructive illustration
J. M. Gordon
Am. J. Phys. 59, 551–555 (1991) https://doi.org/10.1119/1.16818
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The mean field entropy for an ensemble of identical spins with arbitrary magnitude
J. A. Tuszyński; W. Wierzbicki
Am. J. Phys. 59, 555–561 (1991) https://doi.org/10.1119/1.16819
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Notes and Discussions

Comments on ‘‘Illustration of resonances and the law of exponential decay in a simple quantum mechanical problem,’’ by Herbert Massmann [Am. J. Phys. 53, 679–683 (1985)]
David Onley; Anita Kumar
Am. J. Phys. 59, 562–563 (1991) https://doi.org/10.1119/1.16820
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Traveling, vibrating strings
Ronald F. Bruner
Am. J. Phys. 59, 564–565 (1991) https://doi.org/10.1119/1.16821
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A charge contribution to (pseudo‐) Newtonian gravity
John H. Young
Am. J. Phys. 59, 565–567 (1991) https://doi.org/10.1119/1.16822
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Erratum: ‘‘Oscillations of a dipole in a magnetic field: An experiment’’ [Am. J. Phys. 58, 838–843 (1990)]
Juan Bisquert; Emilia Hurtado; Salvador Mafé; José Pina
Am. J. Phys. 59, 567 (1991) https://doi.org/10.1119/1.16844
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Apparatus and Demonstration Notes

A low‐cost timer for free‐fall experiments
A. Edgar
Am. J. Phys. 59, 568–569 (1991) https://doi.org/10.1119/1.16823
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The lock‐in amplifier: A student experiment
Richard Wolfson
Am. J. Phys. 59, 569–572 (1991) https://doi.org/10.1119/1.16824
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Book Reviews

Theory Construction and Selection in Modern Physics: The S‐Matrix
James T. Cushing; Sam B. Treiman
Am. J. Phys. 59, 573–574 (1991) https://doi.org/10.1119/1.16794
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The Elements Beyond Uranium
Glenn T. Seaborg; Walter D. Loveland; Ralph Baierlein
Am. J. Phys. 59, 574–575 (1991) https://doi.org/10.1119/1.16795
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All objects and some questions
Charles H. Lineweaver, Vihan M. Patel
Ergodic Lagrangian dynamics in a superhero universe
I. L. Tregillis, George R. R. Martin
Quantum fields from dimensional analysis: Applications in condensed matter systems
Richard Robinett
Interplay between Airy and Coriolis precessions in a real Foucault pendulum
N. N. Salva, H. R. Salva
Temperature as joules per bit
Charles Alexandre Bédard, Sophie Berthelette, et al.
Solving introductory physics problems recursively using iterated maps
L. Q. English, D. P. Jackson, et al.
  • Online ISSN 1943-2909
  • Print ISSN 0002-9505

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