Tom came in and talked to us about different inventions and tools and how they have progressed over time. He started with Robert Sterling who designed the Sterling engine which was supposed to replace the steam engine but failed because it couldn’t be made big enough and if the water gets too low the heat causes the steam to flash boil resulting in explosions. The steam engine risked the same thing if the water got to low. I don’t remember the name of it but he also showed us how they powered the fans in submarines and even some cars by using two different metals (bismuth and copper) and putting one in cold water and the other in warm water creating an electric current. The Medicino Motor is solar powered and was designed as a stating point and meant to be altered. Thomas Paige designed the rocking armature motor. Overall it was a really interesting class to sit through we talked about how electric currents are created and activate different gases. It was nice because I hadn’t stopped to think about how electric currents are create.