The Icarus Trophy race is a 1000 mile, unsupported, cross-country paramotor race that starts in Montana and finishes in Nevada.
Trey is working on a Bluetooth connected device that fits in the wing of the paramotor. Using this he can get more flight information and data about pilot control input. It connects up to his phone which runs a custom app. See Figure 5.
Trey's paramotor motor causes RF interference that disrupts the Bluetooth connection. He is working on shielding the ignition system with should solve the problem.
The Scariac is a water based resistor built by Grant Thompson a.k.a. "The King of Random". Grant needed a way to adjust the power to this homemade stick welding system but couldn't find an easy or inexpensive way to control the voltage. The idea is to use water as the medium of the resistor and by adjusting the distance between the copper pipe conductors it will increase and decrease the resistance. Suggestion to listeners. Don't try this at home.
David Ramsay toured a wirebonding factory while he was in Shenzhen. Really cool pictures of the machines and the process. Parker points out that some of the workers are wearing wireless ESD straps.