I put most of the technical papers I write on arxiv.org Some of them have been published in technical journals, some haven’t.

• https://arxiv.org/abs/2301.06637 How many acres of potatoes does a society need? Published in The Physics Teacher, 2024. Supplemental calculations for the paper and an ipython notbook about agricultural yields are both available online. MNCOSE 2023 Slides

• https://arxiv.org/abs/2301.00013 Don’t throw that video away! Reference Frames can fix Video Analysis with a Moving Camera. Published in Physics Education, Dec 2023. Here are: detailed calculations in Vernier LoggerPro, figure creation with ipython notebooks, and and a demonstration of how to grab and analyze youtube videos. The videos that motivated the paper are online: (Mark Holyoak captures a bear, bouncing off a trampoline](https://www.youtube.com/watch?v=jB47Vucoj2o) and Eugenia Etkina, wearing rollerblades, tosses a ball in the air.

• https://arxiv.org/abs/1807.04246 Notes on pulse-width modulation. Probably not that special or novel, but I don’t know where this is talked about at the intro level in Electrical Engineering or Physics textbooks.

• https://arxiv.org/abs/1712.04029 Inexpensive Student-fabricated Solar Panels

• https://arxiv.org/abs/1407.7613 Including Arduino microcontroller programming in the introductory physics lab

• https://arxiv.org/abs/1407.5243 Small Oscillations via Conservation of Energy. Published in Physics Education, 2017.

• https://arxiv.org/abs/1110.0772 Building Thinking Skills in Pre-service Elementary School Teachers

• https://arxiv.org/abs/0904.3960 Computational Physics and Reality: Looking for Some Overlap at the Blacksmith Shop

• https://arxiv.org/abs/0811.2133 Using Garlic As A Far-Transfer Problem of Proportional And Probabilistic Reasoning. Published in The Mathematics Teacher.

• https://arxiv.org/abs/0803.4142 Measuring the 2D Vector Aspect of Momentum Using Only One Dimension

• https://arxiv.org/abs/cond-mat/0604225 Abundance of unknots in various models of polymer loops

• https://arxiv.org/abs/cond-mat/0506786 On the Limits of Analogy Between Self-Avoidance and Topology-Driven Swelling of Polymer Loops

• https://arxiv.org/abs/cond-mat/0403457 Under-knotted and Over-knotted Polymers: Unrestricted Loops

• https://arxiv.org/abs/cond-mat/0403419 Topologically Driven Swelling of a Polymer Loop