True Mirror
See yourself as others see you with a true mirror.
Plywood
Fetch-O-Matic: Automatic Ball Launcher
Several years ago I watched a viral YouTube video that starred Jerry the Dachshund, whose engineer owner had built him his very own automated ball launcher. I had two dogs at the time, and was also unemployed with some time on my hands, so I decided to try my hand at building one. After a […]
Gravity Catapult
I have long been enamored of catapults. Invented around 400 B.C., they were used until nearly A.D. 1300. So for 1,700 years, catapults were arguably the largest, most expensive, and most powerful machines on the planet. Today, people build catapults for fun: Scout troops, historical reenactors, fathers and daughters, beer-stoked college students. Having built more […]
Lumia Lunchbox Laser
Back in the 1970s, my friend Wayne Gillis and I used to do light shows at science fiction conventions. We had the usual panoply of overhead, slide, and custom-made projectors, and a single, very expensive, helium-neon laser from Edmund Scientific. Calling ourselves Light Opera, and later, Illuminatus, we performed at ConFusion conventions in Ann Arbor, […]
PVC Two-Faced Clock
If you and a friend or relative live in different time zones, keep track with this two-faced clock.
PVC Floating Accent Light
This lamp adds a romantic glow to any room. Designed to provide good airflow around the bulb, it seems to float magically on a soft ring of light around its base.
PVC Kids’ Table and Stool
This small table fits young kids perfectly — and they can scribble to their hearts’ content on the dry-erase tabletop.
