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Question 2: Which country invented the microwave oven? The inventor of the microwave oven is Percy Spencer of the United States. Percy Spencer was born in Atlanta, USA in 65438. 1939 joined the navy. Half a year later, he retired due to injury. He joined the submarine signal company in the United States and began to contact all kinds of electrical appliances. Later, he joined Raytheon Company, which specializes in manufacturing electron tubes. Because of his excellent work, he was promoted from inspector to technical director of new electron tube production on 1940. Thanks to his genius and diligence, he has successively completed a series of major inventions, which made many old scientists sit up and take notice. At that time, British scientists were actively engaged in the research of microwave energy of military radar. Two professors from Birmingham University designed a magnetron, which can effectively generate high-power microwave energy. But at that time, Britain and Germany were in the decisive battle stage, and German planes bombed the British Isles indiscriminately. Therefore, this new product cannot be produced in China, so we have to seek cooperation with the United States. 1940 In September, when British scientists visited Raytheon Company in the United States with samples of magnetrons, they hit it off with the talented Percy Spencer and met each other late. With his efforts, the magnetron developed by British Raytheon Company succeeded. By chance, Percy Spencer came up with the idea of inventing the microwave oven. 1945, he observed that microwaves can warm up the surrounding objects. Once, when he walked past a microwave transmitter, he felt very hot, and soon he found that the candy in his pocket was melted by microwave. Another time, he put a bag of corn kernels in front of the horn of the waveguide, and then observed the changes of corn kernels. He found that the corn kernels were the same as those placed in front of the fire. The next day, he put an egg in front of the bell mouth, and the egg suddenly exploded when heated, splashing all over him. This strengthened his? The argument that waves can heat objects. Inspired by Percy Spencer's experiment, Raytheon decided to cooperate with him to develop a stove that can be heated by microwave to cook. A few weeks later, a simple stove was finished. Percy Spencer experimented with gingerbread. He sliced the gingerbread first and then baked it in the oven. During the cooking process, he repeatedly changed the power of the magnetron to choose the most suitable temperature. After several experiments, the smell of food filled the whole room. 1947, Raytheon introduced the first household microwave oven. However, the cost of this kind of microwave oven is too high and its service life is too short, which affects its popularity. 1965, George? Foster boldly reformed the microwave oven and designed a durable and low-cost microwave oven with Percy Spencer. From 65438 to 0967, the press conference and fair of microwave oven was held in Chicago, which was very successful. Since then, microwave ovens have gradually entered thousands of households. Because cooking food in microwave oven is fast and convenient, not only delicious, but also distinctive, some people humorously call it "the liberator of women".
Question 3: When was the microwave oven invented? From 65438 to 0946, Spencer was a researcher at Raytheon Company in the United States. By chance, he found that the microwave oven melted the candy. Facts have proved that microwave radiation can cause molecular vibration inside food, thus generating heat. 1947, the first microwave oven came out.
Question 4: When was the first microwave oven invented in the world? From 65438 to 0946, Spencer was a researcher at Raytheon Company in the United States. By chance, he found that the microwave oven melted the candy. Facts have proved that microwave radiation can cause molecular vibration inside food, thus generating heat. 1947, the first microwave oven came out.
Question 5: Who invented the microwave oven? The inventor of microwave oven is Spencer in America. 1939 Joined Raytheon Company, which specializes in manufacturing electron tubes, and was quickly promoted to be the technical director of new electron tube production. At that time, British scientists actively engaged in the research of military radar microwave energy, and designed a magnetron that can generate high-power microwave energy efficiently. At that time, Britain and Germany were in the decisive battle stage, and this new product could not be produced in China, so we had to seek cooperation with the United States. Britain and Raytheon jointly developed and the magnetron was invented successfully. By chance, Spencer had the idea of inventing the microwave oven. Spencer found the chocolate in his pocket melted when he was testing the magnetron. Another time, he put an egg near the magnetron, and the egg suddenly exploded when heated, splashing all over him. This reinforces his argument that microwaves can make objects heat up. Inspired by Spencer's experiment, Raytheon decided to cooperate with him to develop a stove that can be cooked by microwave. A few weeks later, a simple stove was finished. 1947, Raytheon introduced the first household microwave oven. However, the cost of this kind of microwave oven is too high and its service life is too short, which affects its popularity. 1965, George? Foster boldly reformed the microwave oven and designed a durable and low-cost microwave oven with Spencer. From 65438 to 0967, the press conference and fair of microwave oven was held in Chicago, which was very successful. Since then, microwave ovens have gradually entered thousands of households.
Question 6: When was the microwave oven invented? Who invented it? Please write it down in English! Dear Jiang, don't you listen in class?
Look, the answer of the man above is wrong! ! ! !
When was the microwave oven invented? Who invented it?
Question 7: How was the microwave oven invented? Although the food heated by microwave oven is not delicious, it is hard to prevent microwave oven from becoming the standard configuration in modern kitchens. Products always contain a certain amount of water, and water is composed of polar molecules. When microwave is radiated to food, the orientation of this polar molecule will change with the microwave field. Because of this movement of polar molecules in food and the interaction between adjacent molecules, a phenomenon similar to friction is produced, which makes the water temperature rise, so the temperature of food also rises. The earliest name of microwave oven is "popcorn and hot mass heater". Its invention was purely accidental and originated from a weapon research and development project. The inventor of the microwave oven is Percy, an American self-taught engineer? LeBron? Percy Spencer and Percy Spencer were born in Atlanta, USA. 1939 joined the navy. Half a year later, he retired due to injury. He joined the submarine signal company in the United States and began to contact all kinds of electrical appliances. Later, he joined Raytheon Company, which specializes in manufacturing electron tubes. Because of his excellent work, he was promoted from inspector to technical director of new electron tube production on 1940. Thanks to his genius and diligence, he has successively completed a series of major inventions, which made many old scientists sit up and take notice. By chance, Percy Spencer came up with the idea of inventing the microwave oven. 1945, he observed that microwaves can warm up the surrounding objects. Once, when he walked past a microwave transmitter, he felt very hot, and soon he found that the candy in his pocket was melted by microwave. Another time, he put a bag of corn kernels in front of the horn of the waveguide, and then observed the changes of corn kernels. He found that the corn kernels were the same as those placed in front of the fire. The next day, he put an egg in front of the bell mouth, and the egg suddenly exploded when heated, splashing all over him. This reinforces his argument that microwaves can make objects heat up. Inspired by Percy Spencer's experiment, Raytheon decided to cooperate with him to develop a stove that can be heated by microwave to cook. A few weeks later, a simple stove was finished. Percy Spencer experimented with gingerbread. He sliced the gingerbread first and then baked it in the oven. During the cooking process, he repeatedly changed the power of the magnetron to choose the most suitable temperature. After several experiments, the smell of food filled the whole room. 1947, Raytheon introduced the first household microwave oven. However, the cost of this kind of microwave oven is too high and its service life is too short, which affects its popularity. 1965, George? Foster boldly reformed the microwave oven and designed a durable and low-cost microwave oven with Percy Spencer. From 65438 to 0967, the press conference and fair of microwave oven was held in Chicago, which was very successful. Since then, microwave ovens have gradually entered thousands of households.
Question 8: Who invented the first microwave oven? What is the general product background? 1945 The inventor of the microwave oven is Percy Spencer of the United States. 1946, Raytheon Company of the United States and Percy Spencer jointly developed a microwave oven for special cooking, and obtained a patent application for cooking objects with microwaves, and obtained the first patent for microwave ovens the following year. 1947, the world's first household microwave oven came out. There is a water-cooled magnetron with a weight of 1700W, more than 340 kilograms and a height of 6 meters. The finished product can only be put in Boston Hotel when it is inspected, and its price is very expensive-3000 dollars. Because its invention was inspired by radar equipment, it was first called ""