Occasionally, you will find musing here on the law, science, education, technology, design, and life. Also, I build things: furniture, software, reasoned arguments... To learn more about that, click a persona below for my eponymous website.

Electricity & Magnetism

How to build a simple electric motor, plus how it works.

by David Colarusso - March 3rd, 2007

A fast-paced time-laps demo of how to build your own electric motor, this segment was a lot of fun to make. I hope you enjoy it. Plus, you can now subscribe to the Tabletop Explainer via iTunes.

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Electricity & Magnetism Hand Rules (part one)

by David Colarusso - February 25th, 2007

Electricity and magnetism are intimately connected. Explore their relationship in this short explanation of hand rules.

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What is the magnetic field? (Introducing the Tabletop Explainer)

by David Colarusso - February 18th, 2007

On Friday I mentioned that I was at work on a video blog revolving around simple science questions. Well, here’s the inaugural episode. Right now I’m posting the videos on YouTube and embedding them here. However, I may look into hosting them from my site at some point seeing as how I still can’t access YouTube from school. The current YouTube description reads “Quasi-weekly answerers to science questions, along with brief lessons and ideas for teachers and students.”