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
Henry Percy, 6th Earl of Northumberland abroad, and died about 1540. Henry Percy, 6th Earl of Northumberland Henry Percy, 6th Earl of Northumberland, KG (c. 1502 – 1537) was an English nobleman, active as a military officer in the north. He is now primarily remembered as the betrothed of Anne Boleyn, whom he was forced to give up before she became involved with King Henry VIII. Henry Percy was born about 1502, the eldest son of Henry Algernon Percy, 5th Earl of Northumberland, by Catherine, daughter of Sir Robert Spencer. Through his mother he was a first cousin of William Carey who was the brother-in-law to