January, Volume 52, Number 1
This Month’s Cover...represents the balance of “modern” and classical physics as expressed by about 450 TPT readers in a recent poll. (See editorial, p. 8.) The blue spheres in free fall correspond to the topics to be omitted or curtailed from the traditional introductory physics sequence in order to make room for the four largest vibrantly colored balls, topics most often selected by the survey respondents for inclusion.Two of the balls appear to have much greater density than the others – which two?
January, Volume 51, Number 1
This Month’s Cover...
Jukka O. Mattila's amusing article, "Reindeer Diode," appears on p. 12 of this issue.
February, Volume 51, Number 2
This Month’s Cover...Katrina Hay's paper beginning on p. 83 describes a physics course designed for students to learn about energy while traveling by train from Tacoma, WA, to Los Angeles, CA.
March, Volume 51, Number 3
This Month’s Cover...This tree represents the current situation in dark matter. Several experimental observations are the root of the problem while the branches represent possible solutions, including modifications of the theories of gravity and inertia, as well possible sources of unobserved mass. Don Lincoln’s paper on dark matter begins on p. 134 of the current issue. (Figure courtesy Stacy McGaugh.)
April, Volume 51, Number 4
This month's cover:includes a representation of the April 1963 inaugural cover of The Physics Teacher. See Steve Iona's paper beginning on p. 203 for one reader's thoughts and observations on how the journal has evolved over the last 50 years.
May, Volume 51, Number 5
This Month’s Cover...David Kagan discusses the physics behind stealing bases in his paper beginning on p. 269 of this issue.
September, Volume 51, Number 6 This month’s cover combines both the cosmos and a multidimensional Calabi-Yau manifold. If our universe contains dimensions beyond the familiar three, this will leave an indelible signature on the cosmos. The article by Don Lincoln beginning on p. 334 of this issue describes some current searches for these possible extra dimensions.
October, Volume 51, Number 7
This month’s cover explores the aftermath of piercing a suspended water balloon. Michael Vollmer and Klaus-Peter Möllmann’s paper beginning on p. 400 of this issue discusses several factors that govern the maximum size of water drops in nature.
November, Volume 51, Number 8
This month's cover shows a stylized rendition of a carbon nanotube cable for a space elevator. Zdenek Bochnícek’s article (p. 462) examines the plausibility of such a construct on mechanical grounds and other considerations. (Carbon nanotube image by Chip Nyman, Nyman Digital Arts, © 2008 Karl G. Nyman, used with permission.)
December, Volume 51, Number 9
This Month’s Cover...The showy spiral aurora featured on this month’s cover is a close cousin to the helical electron trajectories highlighted in Thomas Greenslade’s “The Shapes of Physics” on pp. 524–527 (photo by Nori Sakamoto, used with permission).
January, Volume 50, Number 1
This Month's cover is the frontispiece of Amagestum Novum, depicting Riccioli's assessment of the debate over whether the Earth moved. In his paper beginning on p. 8, Christopher Graney discusses how he uses Riccioli's "wrong answers" to teach students about science. (Image courtesy of History of Science Collections, University of Oklahoma Libraries)
February, Volume 50, Number 2
This Month’s Cover...In their paper beginning on p. 103, Ed van den Berg and coauthors describe a physics lesson on heating milk for cappuccino.
March, Volume 50, Number 3
This Month’s Cover...In this photo, water droplets are produced by dew condensing onto the fibers of a spider's web. There are relatively few droplets, and so the rainbow being produced by the Sun's rays is not continuous. The picture was taken on the western shore of Yellowstone Lake just after sunrise by Tom Greenslade.
April, Volume 50, Number 4
This Month's cover...shows a view of a shot tower in Baltimore, MD, looking up from its base. The paper beginning on p. 218 of this issue discusses the physics behind how lead shot was made in the 18th and 19th centuries. (Photo taken by Carl Mungan.)
May, Volume 50, Number 5
This Month’s Cover...In his paper beginning on p. 292, Xian-Sheng Cao describes a simple method for measuring the moment of inertia of a Ping-Pong ball.
September, Volume 50, Number 6
This month's cover...shows a particle collision recorded by the CERN Compact Muon Solenoid collaboration in which two photons were produced. Events like these are a powerful probe in searches for the Higgs boson. The paper by Don Lincoln, beginning on p. 332, details this summer's exciting advance in our understanding of the physics of the Higgs field. (Figure courtesy of CERN and the CMS Collaboration)
October, Volume 50, Number 7
This month's cover...This acoustic image was created by scanning yogurt bottles with a sound probe. Manfred Euler's paper beginning on p. 414 of this issue discusses how two-dimensional acoustic mapping can be used in the physics classroom as an analogue to scanning tunneling microscopy.
November, Volume 50, Number 8
This month's cover... is the third place winner in the Contrived Category in AAPT’s 2012 High School Physics Photo Contest. Titled "Rose Drops," the photo was taken by Angela Qiu of Lynbrook High School, San Jose, CA. Her teacher is Darryl Haywood. View the top 100 photos and winners at the AAPT website.
December, Volume 50, Number 9
This Month’s Cover...is a photo of the June 5, 2012, Transit of Venus as seen from Davidson, NC. The image was taken by Emmy Belloni, Nancy Bondurant, and Mario Belloni with an iPhone, an iPhone adapter for afocal astrophotography, and a small telescope with a solar filter. Belloni’s paper beginning on p. 520 discusses the use of astrophotography in the introductory astronomy class. (Cover design: Matthew Payne)