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Презентация, доклад по английскому языку на тему Microwave Oven
Содержание
The History of Creation8 October 1945, Percy Spencer patented a device for cooking food by electromagnetic waves. After 2 years the company Raytheon began producing the world's first microwave oven.
Слайд 2The History of Creation
8 October 1945, Percy Spencer patented a device
for cooking food by electromagnetic waves. After 2 years the company Raytheon began producing the world's first microwave oven.
Слайд 3How Does It Work?
For microwave radiation the surface will be almost
transparent, and the electromagnetic waves penetrate inside and heat up food.
Слайд 4The Impact on Human Health
Long-term scientific studies of the radiation from
a microwave oven mounted level harmful effects on human health. It turned out that the food cooked in them has a negative impact on health
Слайд 5Conclusion
Microwave oven is a vital part of our daily life. And
we can’t imagine our lives without this device.
