Microwave ovens - created from Mind Map

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facts about microwaves

How it works

it was discovered in wwII on accident

Microwaves are reflected by metal.

The first microwave oven that was commercially available had 1.8 meters in height and weighed 340 kilograms.

The first commercial microwave oven was produced in 1947.

he heart of the microwave oven is the magnetron, a device that produces radio waves

The Slotted Choke Door Seal is the reason microwave ovens are safe and available for public and home use today.

According to a study by Harvard Medical School, “because microwave cooking times are shorter, cooking with a microwave does a better job of preserving vitamin C and other nutrients that break down when heated.”

To eliminate hot spots, advanced oven designs like ACP’s, agitate and reflect the microwaves instead of the rotating the food.

Different foods respond differently to microwaving. Balancing cooking power and cooking time is key to overcome the differences between food and ingredients and get a good result.

According to Energy Star, “Microwave ovens use less energy (up to 80% less) than conventional ovens.

Microwave cooking was first discovered in the U.S.A in 1945.

Microwave radiation can heat body tissue the same way it heats food. Exposure to high levels of microwaves can cause a painful burn

A popular yet imperfect “solution” to eliminate hot spots is to rotate food on a turntable.

Microwave oven is a direct descendant of radar.

electronic vacuum tube magnetron produces short radio waves called microwaves

These waves travel through a wave guide down a tunnel

it then travels to a stirrer where the waves are then spread through the interior go the oven

The waves bounce from wall to wall until they reach the food

water molecules have di-polar act as magnets

The waves make the molecules move back and fourth almost 2 million times a second

The causes friction and is what produces heat and cooks the food