Microwave idea

Microwave A modern invention that we can find in almost every home, and we use it to heat and cook many dishes. It is usually sold at a reasonable price, in many sizes, and in different colors, due to its ease of use and the speed of its operation, which only takes a few minutes. Here is a quick overview of the inventor of the microwave oven, how he invented it, the principle of its operation, and some general information about it and its impact on health:

A little background on the inventor of the microwave, Percy Spencer:

The microwave oven was invented during World War II, by inventor Percy Spencer, using magnetic radar (electromagnetic radiation) with a wavelength ranging between 1 mm and 30 cm. In 1946, engineer Dr. Percy LeBaron Spencer, who was working at Raytheon Company, found that some candy that was in his pocket was affected and completely melted when exposed to magnetic radiation. Raytheon then produced the first microwave oven in 1954, despite its large size and high cost.

The wave usually used in microwave ovens is (2.45 GHz), as these waves heat water, fats and sugars by absorbing them, giving them energy that fluctuates greatly, until they begin to collide with each other to produce the heating heat necessary for cooking, knowing that the cooking processes take place from the inside. Abroad.

When the electrical current from the power source passes through the wires of the microwave oven, the resulting voltage is doubled, then high-power wave oscillations (electromagnetic waves) are generated to pass through the food particles until they stop working and the food comes out hot. Both glass, plastic and pottery It has no ability to absorb microwave radiation and is not affected by it, so its temperature will not rise, while metallic materials reflect it.

Some radiation may leak from the microwave oven when it is old, broken, or its door does not close well. It may also affect the regulation of the heartbeat. It is usually recommended to keep children and children away from the microwave while it is running. Some types of plastic manufactured specifically for the purpose of cooking or heating can be used. Using the microwave, but you must pay attention to whether these dishes contain a reference to this or not, and it has been noted that the microwave helps preserve the nutritional content when cooking compared to cooking using cooking gas or charcoal, such as minerals, vitamins and salts.

In general, there is no danger in using a microwave oven, whether for cooking or heating purposes, but caution must be taken while using it.