..., suggesting areas for new/revised content development. These individuals include Peter Sheldon, Woody Weed, Bridget Rogers, Dick Brundle, Harland Thompkins, Jack Singleton, Howard Patton, Ron Outlaw, Paul Holloway, and Kimo Welch. I would also like to thank former managers at NREL for encouraging...

... changes. Esteemed long-time GE colleagues, now retired—Rolf Bergman, Mark Duffy, Dick Hansler, Terry McGowan, Kemp Smith, and Tom Soules—provided helpful inputs. Collectively, they reviewed later drafts, suggested additional aspects of light to include, and expanded my list of references. Ken Kowalski...

... and some examples Cliff began this editorial by citing the work of icons of The Physics Teacher. Ron Edge, Earl Zwicker, and Dick Krane have made enormous contributions to physics teaching through their descriptions and investigations of everyday physics. Cliff wrote of junior high school...

....200301017 Che , F. , Gray , J. T. , Ha , S. , Kruse , N. , Scott , S. L. , and McEwen , J.-S. , “ Elucidating the roles of electric fields in catalysis: a perspective ,” ACS Catal.   8 , 5153 – 5174 ( 2018 ). 10.1021/acscatal.7b02899 Dicks , A. L. , “ The role...

... conductivity, tunable graphitization, and porous structure ( Dicks, 2006 ). Furthermore, changing the underlying support can greatly influence the associated electronic properties of surface catalysts, which in turn can significantly affect the catalytic activity. The role of the support has been extensively...

...Acknowledgments The authors are indebted to the many PTRAs who contributed to this resource. They include George Amann, Dwain Desbien, Carl Duzen, Nancy Easterly, Bill Franklin, Dick Heckathorn, Paul Hewitt, Jan Mader, Karen Jo Matsler, John Roeder, Tom Senior, Emma Smith and many others who we do...

..., Bill Franklin, Dick Heckathorn, Paul Hewitt, Jan Mader, Karen Jo Matsler, John Roeder, Tom Senior, Emma Smith and many others who we do not recall. Their willingness to share their expertise, creativity, and time exemplifies the spirit of the AAPT/PTRA Program. ...

... a “Zip Lock Bag” Accelerometer¹ rewritten by Dick Heckathorn, PTRA Ohio Use Hold the accelerometer perfectly still and in an upright position. What is the orientation of the liquid relative to the rubber band? Since...

... University—were the Operation Physics principal investigators. We believe the main author of the materials on magnets was Gayle Adair Kirwan, who was also Operation Physics director. Many of the Operation Physics materials were scanned and made computer worthy by Richard (Dick) Heckathorn, who is an adjunct...

... of the demonstrations from their book, The Dick and Rae Physics Demo Notebook. Hundreds of teachers who were trained by Dick and Rae, and thousands of people who were entertained by the demo shows they gave to children of all ages can attest to the dedication and expertise of these two wonderful teachers. We...

... at the Virginia Military Institute, Lexington, Va. We thank them for inspiring us to love demonstrations, teaching us how to do demonstrations and use them in our classrooms, and allowing us to reproduce some of the demonstrations from their book, The Dick and Rae Physics Demo Notebook. Hundreds...

...Acknowledgments The authors are indebted to the many PTRAs who contributed to this resource. They include George Amann, Dwain Desbien, Carl Duzen, Nancy Easterly, Bill Franklin, Dick Heckathorn, Paul Hewitt, Jan Mader, Karen Jo Matsler, John Roeder, Tom Senior, Emma Smith and many others who we do...

..., Dick Heckathorn, Paul Hewitt, Jan Mader, Karen Jo Matsler, John Roeder, Tom Senior, Emma Smith and many others who we do not recall. Their willingness to share their expertise, creativity, and time exemplifies the spirit of the AAPT/PTRA Program. ...