About 2 months ago, after years of begging and pleading from my family, I reluctantly agreed to get another cat from the local shelter. We already have a menagerie of beasts that share our home, but for some reason they felt we needed another. I admit, I do like our new addition to the family. […]
I had the chance to run visuals for a unique DJ act called The Hard Sell, a collaboration of turntablists DJ Shadow and Cut Chemist. The art of spinning and cutting records is usually not visible to dance club audiences. Cut and Shadow wanted to let everyone see, up close and personal, all the action […]
The TurtleBot mobile robot is designed for both academic and hobbyist researchers. The open-source hardware design provides excellent documentation for adding modifications and extending the capabilities of the robot in hardware or software. The robot is available for purchase as a kit or, if your research budget is limited, this guide will help you extend […]
If you have an old computer speakers, you can turn them into speakers for phone or MP4.
Although the V90 is an entry-level machine, it’s decidedly not a toy. The way it functions is complicated — a platform carries the tool holder; a larger gantry moves the tool back and forth; the frame positions the gantry; and it’s all driven by a motor turning the screw interposed between two shafts. Indeed, this […]
The TurtleBot mobile robot is designed for both academic and hobbyist researchers. The open source hardware design provides excellent documentation for adding modifications and extending the capabilities of the robot in hardware or software. The robot is available for purchase as a kit or, if your research budget is limited, this guide will help you […]
About 13 years ago I learned of some military research into a satellite- and missile-defense device that would propel projectiles using Lenz’s law, which governs the direction of electrical current induced by a changing magnetic field. I decided to make a little gadget based on the same principle for my kids, to get them interested […]
