Oven gas stove included the AGA cooker invented in 1922 by Gustaf Dalén. The first electric ovens were invented in the very late 19th century, however, like many electrical inventions destined for commercial use, mass ownership of electrical ovens could not be a reality until better and more efficient use of electricity was available. More recently, ovens have become slightly more high-tech in terms of cooking strategy. The microwave as a cooking tool was discovered by Percy Spencer in 1946, and with the help from engineers, the microwave oven was patented. The microwave oven uses microwave radiation to excite the molecules
Gadget & the Gadgetinis for it, when he had no idea what happened. Dr. Claw appears less frequently and there are new villains for the group to contend with. While Brain and Chief Quimby are mainly absent from the show, they do appear in pictures in Gadget's house. Each also appears as a special guest in one episode. Brain appears in episode 36, "No Brainer", which reveals that, having been traumatized after years of pain while saving Gadget and Gadget mistaking him for MAD Agents, he retired from crime-fighting to live in a riverside house, which only Penny knows about. The mere mention of