From 1995 to 2000 I was a Lecturer and later a Visiting Assistant Professor (same job, different title) in the UM Physics department, where I was a full-time instructor for introductory physics classes, and in some case I was the Lecturer for introductory classes of 400 to 600 students.
While teaching an astronomy class at Marist College, I learned about the 100 yard model of the solar system. This is a scale model of the solar system which shows, at the same time and on a linear scale, both the sizes of the planets and the distances between them. At this scale the Sun is about the size of a soccer ball, the Earth is about the size of a peppercorn, and Pluto is a grain of salt a little over 1000 yards from the Sun. I've taken to calling it the "Peppercorn Model" and I've constructed portable stations (with solar lights) which can be put out at the appropriate distances. One of the best places to experience this model is on the Walkway Over the Hudson. For more details and maps for other locations, see this web page about the Peppercorn Model.
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Halloween 2015, with my daughter Amanda. |
While LIGO recently detected gravitational waves, these were from colliding black holes, not from continuous wave (CW) sources. Einstein@Home has not yet made a detection of gravitational waves, but they have also been searching through radio data from the Arecibo observatory, which has resulted in the "re-discovery " of over 100 known radio pulsars, and the discovery of over 50 new radio pulsars never before detected. I was not involved with this part of the project, but I'm proud of the progress it's made since I helped get the whole thing started.
Some of the teaching materials I've prepared over the years which others might find useful include:
![]() | on an Oregon beach. |
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