João Duarte brings us rocket science to the Faire.
Ion thrusters are used in spacecrafts for interplanetary propulsion. They work by accelerating ions using an electric field and have the particularity of not having moving parts or using combustion. João created his version from 3d printed parts, nails, some copper tubbing and a 9kV transformer showing how simple working with advance physics principles can be.
João Duarte is an electrical engineer and one of the eLab Hackerspace founder. He is passionate about inventing and building specially in the electronics, high voltage and chemistry areas. If you attended in 2014 you might remember his Tesla Coil.