REFERENCES

REFERENCES SECTION P

P1: RELATIVITY

P1-01: MICHELSON-MORLEY EXPERIMENT - MODEL
None.

P1-02: LOCAL INERTIAL FRAME OF REFERENCE
M. Kugler, Motion in Noninertial Systems: Teory and Demonstrations, AJP 57, 247-251, (1989).
Edward A. Desloge, Nonequivalence of a Uniformly Accelerating Reference Frame and A Frame at Rest in a Uniform Gravitational Field, AJP 57, 1121-1125, (1989).
R. E. Berg, Local Inertial Frame of Reference Demonstration, AJP 48, 310-312, (1980).
Art Huffman, Principle of Equivalence, AJP 48, 314, (1980).
Donna Berry, et al, An Inertial Box, TPT 16, 103-104, (1978).
Misner, Thorne, and Wheeler, Gravitation, 13-23.

P1-11: CURVATURE OF SPACE
Gary D. White and Michael Walker, The shape of "the Spandex" and orbits upon its surface, AJP 70, 48-52 (2002).
Con S. Lemons and T. C. Lipscombe, Comment on " The shape of "the Spandex" and orbits upon its surface," by Gary D. White and Michael Walker, AJP 70, 1056-1058 (2002).
Rafael Ferraro, The equivalence principle and the bending of light, AJP 71, 168-170 (2003).

P1-12: SPACETIME DIAGRAM IN 3D - EARTH ORBITING SUN
None.

P1-21: EINSTEIN'S RELATIVITY EXPERIMENT
Einstein, Lorentz, Minkowski, and Weyl, The Principle of Relativity, (1905).
Art Huffman, Special relativity demonstration, AJP 48, 780-781 (1980).
Lecture Demonstration Record Form.

P2: QUANTUM MECHANICS

P2-01: PHOTOELECTRIC EFFECT AND PLANCK'S CONSTANT
Selma B. Brody, Sophomore Laboratory Course in Modern Physics, AJP 28, 736-737 (1960).
Sumner P. Davis, Photoelectric Effect Experiment, AJP 29, 706-707 (1961).
G. P. Harnell and J. J. Livingood, Photoelectricity, Experimental Atomic Physics, 214-223, (1933)
Photocell for Determining h and Housing for the Photocell, Leybold, (1967).
B.N.Taylor, W.H. Parker, and D.N. Langenberg, Reviews of Modern Physics 41, 375,1969
Photocell for Determining Planck's Constant, J. Klinger Scientific App corp, (Leybold), prior to (1970).
Spectral Lamps with base p 28 s, Osram, (1971).
Electron Work Function of the Elements, CRC Handbook of Chemisty and Physics, E-69-70, (1972/73).
Harry H. Hall and Richard P. Tuttle, AJP 39, 50-54 (1971).
Kaye and Laby, Work Function, Tables of Physical and Chemical Constants, 263-264, (1973).
Thomas R. Carver and John O. Crawford, Useful lecture demonstration of photoelectric wavelength threshold, AJP 43, 370-371 (1975).
R. A. Powell, Photoelectric Effect: Back to Basics, AJP 46(10), 1046-1051, (Oct 1978).
Photocell for Determining h, Housing Photocell, Klinger Ed Prod Corp, (1983).
J. Dryzek and K. Ruebenbauer, Planck's constant determination from black-body radiation, AJP 60, 251-253 (1992).
Robert Q. Stanley, Question #45: What (if anything) does the photoelectric effect teach us?, AJP 64, 839 (1996).
P. W. Milonni, Answer to Question #45 ["What (if anything) does the photoelectric effect teach us?," R. Q. Stanley, Am. J. Phys 64 (7), 839 (1996)], AJP 65, 11-12 (1997).
Gas Discharge Lamps and Auxiliary Equipment for Spectroscopic Work, J. Klinger Scientific App Corp, (Leybold).
T. M. Donovan and A. D. Baer, Work Function, Encyclopedia of Physics, edited by Rita G. Lerner and George L. Trigg.
R. J. Maurer, Chapter 5: Photoelectric Effect, Handbook of Physics, E. U. Condon and Hugh Odishaw, editors.
Lecture Demonstration Test Data and Graphs.
Catalog Description: Equipment for Measuring Planck's Constant, Klinger Scientific.
Lerner and Trigg, Work Function, Encyclopedia of Physics, 1112.
F. Herrmann and D. Schätzle, Question #53. Measuring Planck's constant by means of an LED, AJP 64, 1448 (1996).
L. Nieves, G. Spavieri, B, Fernandez, and R. A. Guevara, Measuring the Planck Constant with LED's, TPT 35, 108-109 (1997).
Adolf Cortel, Demonstrating the relationship between the energy and frequency of light, TPT 38, 152 (2000).

P2-02: PHOTOELECTRIC EFFECT IN ZINC - ARC LAMP
J. E. Miller, A. R. Reed, and D. P. Miller, Photoelectric Charging of an Electroscope, AJP 34(2), 172, (1966).
G. F. Robinson, Photoelectric Charging of an Electroscope, AJP 33, 746, (1965).
Lecture Demonstrations: Dr. R. E. Berg, Photoelectric Charging of An Electroscope (manuscript).
Instructions: Photoelectric Effect in Zinc-Arc Lamp.

P2-03: PHOTOELECTRIC EFFECT IN ZINC - UV LAMP
Michael Grote and William Heinmiller, Sunscreens and the Photoelectric Effect, TPT 34, 549 (1996).

P2-04: PHOTOELECTRIC PROPELLER
Catalog Description, Energy From the Sun: Solar Conversion Unit, Edmund Scientific, Barrington, NJ.
Description of Stansi Energy Cell Model No. 41800.

P2-05: PHOTO-RESISTOR RELAY
Lecture Demonstrations Circuit Diagram, Photo-Resistor Relay.
David L. Mott, A simple transistor demonstration, TPT 18, 460 (1980).
Lawrence Ruby and John Hunt, Investigating the Automatic Night-Light, TPT 34, 478-479 (1996).

P2-06: PHOTOELECTRIC TRUCK
None.

P2-11: INTERFERENCE OF PHOTONS
Roy H. Biser, Undergraduate Research Project, Photon Diffraction, AJP 31, 29-31, (1963).
Sherwood Parker, A Single-Photon Double-Slit Interference Experiment, AJP 39, 420-424, (1971).
Sherwood Parker, Single-Photon Double-Slit Interence - A Demonstration, AJP 40, 310-314, (1972).
Greenberger, et al, Multiparticle Interferometry and The Superposition Principle, Physics Today, (Aug 1993).
Wolfgang Rueckner and Paul Titcomb, A lecture demonstration of single photon interference, AJP 64, 184-188 (1996).
P. Koczyk, P. Wiewior, and C. Radziwicz, Photon counting statistics - Undergraduat experiment, AJP 64, 240-245 (1996). Jose L. Cereceda, An apparent paradox at the heart of quantum mechanics, AJP 64, 459-466 (1996).
Lecture Demonstrations Formulas for Calculations and Graphs.
Lecture Demonstrations Circuit Diagram: Laser Diode Driver ( handwritten).
Data Sheet, Laser Diode NDL3200, NEC.
Hamamatsu, Photomultiplier Tube Final Test Sheet.
John H. Marburger, III, What is a Photon?, TPT 34, 482-486 (1996).
Kurt Gottfried, Two-particle interference, AJP 68, 143-147 (2000).
Stephan Dürr and Gerhard Rempe, Can wave-particle duality be based on the uncertainty relation?, AJP 68, 1021-1024 (2000).

P2-12: X-RAY DIFFRACTION MODEL
None.

P2-13: ELECTRON DIFFRACTION
C. J. Calbick, The Discovery of Electron Diffraction by Davisson and Germer, TPT 1, 63-69, 91, (1963).
Richard Schlegel, Wave and Inertial Properites of Matter, AJP 22, 77-82, (1954).
Catalog Sheet, BP 117 Diffraction Tube System, Kickok Science.
Instructions Manual, Electron Diffraction Tube TEL 555, Teltron Limited.
Olaf Nairz, Markus Arndt, and Anton Zeilinger, Quantum interference experiments with large molecules, AJP 71, 319-325 (2003).

P2-14: ELECTRON DIFFRACTION MODEL
None.

P2-15: WAVE PACKETS - OSCILLATORS
Ayra, Elem. Mod. Physics, Wave-Packet Description of Material Particles, page 93.
Charles A. Sawicki, Simple uncertainty-principle experiment, TPT 41, 84-89 (2003).

P2-20: FLUORESCENCE
None.

P2-21: BLACK BODY MODEL
Martin Gardner, Physics Trick of the Month: Blacker than Black, TPT 31, 94 (1993).

P2-22: BICHSEL BOXES - BLACK BODY RADIATION
Martin Gardner, Physics Trick of the Month: Blacker than Black, TPT 31, 94 (1993).

p2-24: GIANT LIGHT BULB
None.

P2-31: E/M OF ELECTRON APPARATUS
Lecture Demonstration Instructions Sheet.
William J. Thompson, Determining e/m with a Bainbridge tube: Less data, more physics, AJP 58, 1019-1020 (1990).
Lawrence A. Ferrari and Kenneth E. Jesse, Experiment to Measure e/m for an Electron, TPT 34, 434-437 (1996).

P2-41: POTENTIAL WELL - HILL TRACK MODEL
None.

P2-42: PARTICLE IN A BOX - 1D, CLASSICAL - Q.M. INTRO
None.

P2-43: CLASSICAL HARMONIC OSCILLATOR - Q.M. INTRO
None.

P2-51: OPTICAL ANALOG OF QM STATES AND OPERATORS
William S. Bickel and Wilbur M. Bailey, Stokes Vectors, Mueller Matrices, and Polarized Scattered Light, AJP 53, 468-478, (1985).
J. S. Levinger and R. M. Lichtenstein, Intuitive Understanding of Pauli's [sigma] Matrices, AJP 47, 744, (1979).
Terry S. Carlton, Quantum Mechanical Demonstrations with Polarized Light, AJP 42, 408, (1974).
B. R. Russel, An Optical Demonstration of Noncommuting Operators, AJP 41, 418-419, (1973).
Edward Collett, The Description of Polarization in Classical Physics, AJP 36, 713-725, (1968).
William H. McMaster, Polarization and the Stokes Parameters, AJP 22, 351-362, (1954).
Feynman: Lectures on Physics, 11-1 The Pauli Spin Matrices, 11-1 to 11-12.
Physics Lecture-Demonstration: List of QM States, Operators, and Their Optical Equivalents.

P2-61: DIRAC STRING TRICK
Edgar Rieflin, Some mechanisms related to Dirac's strings, AJP47(4), 379-380 (1979).
C. W. Misner, K. S. Thorne, and J. A. Wheeler, Gravitation (Freeman, San Francisco, 1973), 1148-1149.

P3: ATOMS AND MOLECULES

P3-01: PERIODIC CHART
None.

P3-02: ATOMIC ELECTRON ORBITAL MODELS
Veríssimo M. de Aquino, Valdir C. Aguilera-Navarro, Mario Goto, and Hiromi Iwamoto, Monto Carlo image representation, AJP 69, 788-792 (2001).

P3-11: LANGMUIR EXPERIMENT
P. Joseph Garcia, and Stephen G. Wukovitz, Before the Molecular Monolayer Experiment, TPT 16, 390, (1978).
Elmer L. Galley, Apparatus-Lecture Demonstration and Laboratory. Classroom Techniques, TPT 4, 34-35, (1966).
Lecture Demonstrations Description of the Langmuir Experiment (handwritten).

P3-21: CATHODE-RAY TUBE - SHADOW EFFECT - MALTESE CROSS
Lecture Demonstrations, Bill Norwood, Radiation Safety Check of the Maltese Cross (Jan 1985).

P3-22: CATHODE-RAY TUBE - CANAL RAYS
None.

P3-23: CATHODE-RAY TUBE - FLUORESCENCE EFFECT
None.

P3-24: CATHODE-RAY TUBES - MISCELLANEOUS
Karl Parsons, X-Ray Dosage From a Crookes' Tube, AJP 35, 890, (1967).
Clifford Bettis, Crookes Tubes: How Safe Are They?, Physics Instructional Resource Assn., Vol 3, 1, (Jan 20, 1988).

P3-25: CATHODE-RAY TUBE - CONCAVE CATHODE
None.

P3-31: X-RAY TUBE
Marilyn E. Noz, Ph. D. and Gerald Q. Maguire, Jr., Ph. D., RADIATION PROTECTION in the Radiologic and Health Sciences, second edition, Lea & Febiger, 1985, pages 50-51 and 226-227.
Transparency of tube operating parts.
Central Scientific Company, Directions for operation of Cat. No. 71735 x-ray tube.
Results of radiation check for our tube.

P3-41: FRANCK-HERTZ EXPERIMENT
Kenneth H. Carpenter, An Automated Franck-Hertz Experiment using an X-Y Recorder, AJP 43, 190-191, (1975).
Physics 395 Experiment 3, The Franck-Hertz Experiment.
Blueprint, Board Design for Components of Franck-Hertz Experiment.
Transparency, Circuit for the Franck-Hertz Tube.
Meiners, Demonstration Experiments in Physics, 1210, 39-3 Franck-Hertz Experiment.
Instructions for Use: Cat No. KA6040 Franck-Hertz Tube, Klinger Scientific.
Catalog Description, Franck-Hertz Experiment, Leybold.
Catalog Descritption, Klinger Franck-Hertz Experiment.
B. Donnally and H. Jensen, guest editors, APPARATUS NOTES: Improved Franck-Hertz Apparatus, early short AJP article.

P3-51: BALMER SERIES
Donald F. Collins, Video spectroscopy--emission, absorption, and flash, TPT 38, 561-562 (2000).
Bruce C. Palmquist, Interactive Spectra Demonstration, TPT 40, 140-142 (2002).

P3-52: RESONANCE RADIATION
Simon George and N. Krishnamurthy, Absorption Spectrum of Iodine Vapor - An Experiment, AJP 57, 850-853, (1989).

P3-53: ATOMIC ENERGY LEVEL MODEL
None.

P3-54: ENERGY LEVELS - BALLS AND LADDER
None.

P3-61: FLUORESCENT LIQUIDS
None.

P3-62: FLUORESCENT CHALK
None.

P3-63: WAVELENGTH SHIFTER BAR
Product Information with Sample, LISA polymers, Mobay Chemical Corporation.

P3-64: PHOSPHORESCENCE -- BLACK LIGHT AND OSCILLOSCOPE
None.

P3-65: WINTERGREEN MINTS
What causes Wint-o-Green LifeSavers to spark when you bite down on them?, Ask Popular Science, December 1996.

P3-66: FLUORESCENCE AT LN TEMPERATURE
None.

P3-67: FLUORESCENCE OF LAUNDRY SOAP
None.

P3-71: VISIBLE LASER
None.

P4: NUCLEI AND PARTICLES

P4-01: GEIGER COUNTER
Lecture Demonstrations List of Radiation Energy Levels for (207)Bi, (241)Am, and (228)Th.
Catalog Description, Alpha, Electron and Gamma Sources, ORTEC.
Instructions: Ionizing Unit or Bar, Nuclear Products Co., El Monte, CA.
F. Arqueros and G. D. Montesinos, A simple algorithm for the transport of gamma rays in a medium, AJP 71, 38-45 (2003).

P4-02: NUCLEAR SPECTRA
W. R. French, Jr., R. L. LaShure, and J. L. Curran, Lithium-Drifted Germanium Detectors, AJP 37, 11-22 (1969).
P. A. Mello and M. Moshinsky, Mechanical Models for Reactions Involving Isobaric Analog and Doorway States, AJP 39, 54-65 (1971).
F. T. Avignone III, Experiment to Demonstrate the Creation of Positron-Electron Pairs by Gamma Rays, AJP 41, 71-77 (1973).
F. T. Avignone III and S. M. Blankenship, Recent Improvements in the Experiment to Demonstrate the Creation of Positron-Electron Paris, AJP 42, 698-? (1974).
Dan Wilkins, A new angle on Compton scattering, AJP 60, 221-227 (1992).
Richard E. Stevens, Neutron activation analysis of a penny, AJP 68, 385-386 (2000).
R. M. Anjos, A Facure, E. L. N. Lima, P. R. S. Gomes, M. S. Santos, J. A. P. Brage, E. Okuno, E. M. Yoshimura, and N. K. Umisedo, Radioactivity teaching: Environmental consequences of the radiological accident in Goiânia (Brazil), AJP 69, 377-3810 (2001).
Randolph S. Peterson and Thomas A. Walkiewicz, An apparatus evaluation, TPT 38, 266-268 (2000).
Manufacturer's descriptive literature for our PM tubes.

P4-03: RADON DETECTION
Wallace A. Hilton and Roger C. Crawford, Measurements of Half-Life, AJP 28, 743-744, (1960).
Patton H. Mcginley, Half-Life of Dust, TPT 6, 323-324, (1968).
Nicholas Lumb, Radon in Buildings: A Simple Detection Method, Physics Education 24, 175-177, (1989).
Warren Brookes, Killer or Minimal Risk?, [Radon Gas], (1990).
A. J. Howard, S. E. Carroll, and W. P. Strange, A simple system for radon-in-air concentration determinations, AJP 59, 544-550 (1991).
Clifford Bettis and Carl Throckmorton, What Teachers Should Know About Radon, TPT 29, 338-343 (1991).
Jack G. Couch and Kelly L. Vaughn, Radioactive Consumere Products in the Classroom, TPT 33, 18-22 (1995).
Thomas A. Walkiewicz, The Hot Balloon (Not Air), TPT 33, 344-345 (1995).
Howard C. Hayden, High-Level Radioactive Waste, TPT 33, 450-454 (1995).
Carson A. Riland, Environmental Radioactivity, Temperature, and Precipitation, TPT 34, 234-235 (1996).
Patton H. McGinley, Half-Life of Dust, Apparatus for Teaching Physics.
Lecture Demonstration: Reaction Equations and Data for Radon Decay.
J. R. Cussenot and M. Fabry, Undergraduate experiment: Half-lifes Thorium 232 and Radon 220, AJP 48, 776-777 (1980).
Trevor M. Willey and Jill A. Marshall, Radioactive Balloon Measurements in Utah, TPT 35, 478-479 (1997).

P4-04: COSMIC RAYS
James W. Cronin, Thomas K. Gaisser and Simon P. Swordy, Cosmic Rays at the Energy Frontier, Scientific American Volume 276 Number 1, January 1997.
Lecture Demonstrations Note on Epoxy Used to Connect the Phototube to the Paddle.
David P. Jackson and Matthew T. Welker, Measuring and modeling cosmic ray showers with an MBL system: An undergraduate project, AJP 69, 896-900 (2001).
Demonstration Uses Phototube, RCA 8575, Serial No. Z23551.
Henry Muhry and Patrick Ritter, Muons in the classroom, TPT 40, 294-300 (2002).

P4-05: PHOTOMULTIPLIER TUBE - LARGE
John H. Moore, Christopher C. Davis, and Michael A. Coolan, Building Scientific Apparatus, A Practical Guide to Design and Construction, Second Edition, Section 4.8.2 Photoemissive Detectors, pages 260-264.

P4-06: RADIOACTIVE CONSUMER PRODUCTS
Cliff Bettis, University of Nebraska, Lincoln: Comparison of radioactivity of No-Salt product with that of radon gas.
Douglas E. Peplow, Fiestaware radiography, TPT 37, 316-318 (1999).

P4-07: SHRINK TUBE - IRRADIATED POLYMER
None.

P4-08: IONIZATION SMOKE ALARM
None.

P4-11: RADIOACTIVE DECAY - DICE
Earl V. Edris, Simulated Radioactive Decay Experiment, AJP 32, 240-241 (1964).
Seynour Charas, Radioactivity Demonstration, AJP 37, 331 (1969).
Ludwik Kowalski, Simulating radioactive decay with dice, TPT 19, 113 (1981).
Joseph Priest and James Poth, Demonstrations for teaching nuclear energy, AJP 51, 185-187 (1983).
L. Moral and A.F. Pacheco, Algebraic approach to the radioactive decay equations, AJP 71, 684-686 (2003).

P4-12: EXPONENTIAL DECAY - WATER MODEL
Richard M. Sutton, ed., Demonstration Experiments in Physics, 503 (1938).
Lawrence Ruby, If You Understand Leaky Buckets, You Understand a Lot of Physics, TPT 29, 44-46, (1991).
Henry S. Badeer and James W. Hicks, Role of Viscous Resistance in Siphon Flow, TPT 28, 558-559, (1990).
John F. Yegge, A Buret Model of Exponential Decay, TPT 6, 41, (1968).
J. R. Smithson and E. R. Pinkston, Half-Life of a Water Column as a Laboratory Exercise in Exponential Dacay, AJP 28 , 740-742, (1960).
Harold P. Knauss, Hydrodynamic Models of Radioactive Decay, AJP 22, 130-131, (1954).
Lecture Demonstrations Test Data and Graph.
Thomas B. Greenslade, Jr., Simulated secular equilibrium, TPT 40, 21-23 (2002).
Stephen J. Fairman, Joseph A. Johnson, and Thomas A. Walkiewicz, Fluid Flow with Logger Pro, TPT 41, 345-350 (2003).

P4-13: HALF LIFE OF BARIUM 137
Keith Ruddick, Determination of the half-life of Po212, AJP 63, 658-660 (1995).
Bob Weinberg, The Half-Lives of Silver, TPT 35, 456-460 (1997).
Thomas A. Walkiewicz, Alpha Problems, TPT 36, 131 (1998).
Roger Hanson, More on Alphas, TPT 36, 131-132 (1998).
Bob Weinberg, The Author Responds, TPT 36, 132 (1998).
Se-yuen Mak, Radioactivity experiments for project investigation, TPT 37, 536-539 (1999).
Christopher C. Deacon, A background to background radiation, TPT 41, 78-80 (2003).

P4-14: RADIOACTIVE DECAY CHAIN - WATER MODEL
John Satterly, Hydrodynamic Models of Radioactive Transformations, AJP 22, 491-492, (1954).
J. Lloyd Bohn and Francis H. Nadig, Hydrodynamic Model for Demonstrations in Radioactivity, AJP 6, 320-323, (1938).
J. Scobie, R. D. Scott, and J. F. Stewart, Use of the point of inflection on a radioactive decay curve, AJP 43, 1012-1013 (1975).
Lecture Demonstrations Sketch : Radioactive Decay Tower.
Dobromir S. Presyanov, Short solution of the radioactive decay chain equations, AJP 70, 444-445 (2002).

P4-21: NUCLIDES CHART
None.

P4-22: CHART OF FUNDAMENTAL PARTICLES AND INTERACTIONS
Taken from Lawrence Berkeley Labs' "Particle Adventure" web-site at www.particleadventure.org

P4-31: CLOUD CHAMBER - INDIVIDUAL VIEWING
Sargent-Welch Scientific Company Instructions for use of 2195 Cloud Chamber.
Cloud chamber descriptions from several elementary laboratories.

P4-32: CLOUD CHAMBER - TV
Sargent-Welch Scientific Company Instructions for use of 2195 Cloud Chamber.
Cloud chamber descriptions from several elementary laboratories.
Jason Cassidy, Video Analysis of Cloud Chamber Phenomena, TPT 32, 124-125 (1994).

P4-33: BUBBLE CHAMBER TRACKS - THREE DIMENSIONAL VIEWMASTER
None.

P4-41: RUTHERFORD SCATTERING MODEL
M. M. Gordon, Concerning The Rutherford Scattering Formula, AJP 23, 247-248, (1955).
Apparatus Notes - Another Simulated Scattering Experiment, AJP 32, 11, XXIII, (1964).
Gaylord T. Hageseth and Francis J. McCormack, The Poorman's Macroscopic Scattering Analyzer, AJP 37, 204-210 (1969).
Vincent Santarelli and Nicodemo Rinaldis, Hard-Sphere Scattering With A Light Beam, TPT 17, 609-611, (1979).
G. F. Bertsch and E. Kashy, Nuclear scattering, AJP 61, 858-859 (1993).

P4-42: ALPHA PARTICLE SCATTERING ANALOG
Instructions: Alpha Particle Scattering Analogue Apparatus, Griffin & George Ltd.

P4-51: MILLIKAN OIL DROP MODEL
None.

P4-61: CHAIN REACTION - DOMINOES MODEL
Lorne A. Whitehead, Domino "chain reaction," AJP 51, 182 (1983).

P4-62: CHAIN REACTION - MOUSE TRAP MODEL
H. D. Rathergeber, Mousetrap Model of Chain Reactions, AJP 31, 62, (1963).
J. H. Manley, The Mousetrap Bomb: Modification N+1, AJP 16, 119-120, (1948).
Hoff Lu, On The Physics of the Atomic Bomb, AJP 15, 513, (1947).
Richard M. Sutton, A Mousetrap Atomic Bomb, AJP 15, 427-428, (1947).
J. Higbie, The better mousetrap: A nuclear chain reaction demonstration, AJP 48, 86-88 (1980).
Albert A. Bartlett, Just sixty years ago, TPT 37, 30-31 (1999).