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... Read more »

Hovercraft Shop Vac


I have owned several shop vacuum cleaners, but regardless of the make, I never liked the way the casters worked. They never rolled where I wanted them to. When I recently had to replace a worn-out shop vacuum, I looked for a way to improve the mobility of the new... Read more »

Scary Ticket Booth Build


At the last minute this Halloween we decided to decorate in a creepy carnival theme with the goal of not spending too much money on decorations to save more for candy. One of the many ideas we had was to build a creepy ticket booth to welcome visitors to our... Read more »

Dodecahedron Lamp


People appear symmetrical, but even the most perfect human face shows irregularities if we compare the left side with the right. Perhaps this is why the absolute, rigid symmetry of crystals seems beautiful yet alien to us. Unlike DNA’s soft spiral, a crystal’s molecular bonds align themselves to form regular... Read more »

The Wimshurst Influence Machine

When assembling a proper laboratory, the gentleman or lady experimenter should be sure to include a Wimshurst electrostatic generating machine. This device will serve tirelessly in investigations into the field of natural philosophy, and provide interesting parlor games such as the “electric kiss.” Herein we will demonstrate the construction of... Read more »