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
The Gadget Show the 17th series, Jason Bradbury and Pollyanna Woodward were joined by "Countdown" co-presenter Rachel Riley and former Gadget Show presenter Jon Bentley who re-joined the show as chief gadget tester. It was announced that "The Gadget Show" would return to its more traditional format, with a new studio. On 30 January 2014, it was announced that Ortis Deley would be returning to the show, replacing Pollyanna Woodward. On 25 April 2014, it was announced that Riley would be leaving the show and would be replaced by Olympic skeleton gold medallist, Amy Williams. From the 22nd series, in-studio presenter links were