Compressed Air Rocket Launchers

When it comes to making your own launcher, it’s hard for me to do much better than the Instructable I put together a few years back. If on the other…

Heron Fountains

Making Heron Fountains with 2 liter bottles at Imaginon. It was like magic.

Firebot

At RobotsConf in Florida Ben was struggling to find a way to make his bot competitive. All the bots started as identical laser cut kits. Whatever to do? Hairspray! Well…

Prosthetic LIghts

While working with a prosthetist (someone that designs, creates and fits artificial limbs) to record and analyze the behavior and performance of of amputees wearing prosthetics, we discovered that we…

Dry Ice Jenga

Jenga is a pretty simple game… that gets a wee bit trickier when you can’t use your hands. In particular playing with tongs to handle the dry ice means that…

Flip Flop

The basic flip-flop circuit or astable multivibrator (try telling a bunch of middle school kids that’s the name of this thing). This version was built after the Feltronics Flip Flop,…

Giant Jenga

Bored kids at home demanded something to do. 20 minutes in the shop yielded a few hours of fun. Shoes required, and your head must remain out of the fall…

Feltronics Radio

The first radio created with Feltronics, while functional, was a bit complicated. And as can be seen in photographs of our early days, we did not have a consistent product.…

Soldering Station

Soldering is often a challenge when you only have two hands. Having another person offer a third hand usually just results in someone getting burned. Ben decided to not only…

First Radio

The the magic they bring and the powerful way they forever changed the world, radios don’t have to be that complicated. Joshua Made his first radio with some wire, and…