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= = ** Microwave ovens **

A micro oven is a machine that uses electromagnetic radiation to cook food. Microwave ovens use microwaves. Microwaves are part of the electromagnetic waves. Microwaves have the shortest wavelength and the highest frequencies. The reason for microwaves having a higher frequency is because waves use energy. Microwaves are produced inside ovens by an electron called magnetron. The wavelength of a microwave is about one millimeter to thirty centimeters that is about 12 inches. In a microwave oven, the radio waves created are tuned to frequencies that the food absorbs. Whiles the food absorbs the energy the food gets warmer. Unlike the food the dish does not absorb a remarkable amount of energy that allows the dish to stay much cooler then the meal.



= **__ How do micro ovens use electromagnetic radiations? __** = = = Have you ever wondered how do microwave oven works? A microwave oven produces microwaves that tend to spread all over, across, up, and down, left and right and they finally reach to the food to be cooked.

Microwaves have waves these waves cause the water molecules in the food to vibrate. The vibration in the food is going really fast that the food is rubbing against each other which then makes it hot and that’s how your food becomes warm to eat.

There are five main parts to a microwave oven and how it works. The first place is the exact center of the oven where the food is placed.

The second place is the door, the door is supposed to be very tightly closed so that the microwaves will not escape and let the heat out.

The third part to it is the magnetron that produces microwaves. Electrons are moving particles that exist in matter, they contain magnetic fields and they also include radio waves. Electrons that have magnetic fields are called magnetrons.

The fourth part is a tube that microwaves travel through to get into the oven. From that tube it leads into a rotating paddle that helps the rotating paddle work faster.

The last important part of a microwave oven and how it works is the rotating paddle. A rotating paddle scatters the microwaves throughout the oven. Those are five main parts that makes a microwave oven work.

How do Microwave ovens affect human’s health?

There are quite a number of affects microwave ovens have on humans. Microwave ovens are dangerous machines to be using, if one day the door is not closed tightly and your standing right by the door the microwave oven can release some electromagnetic radiation. Electromagnetic radiation is still not proven to be harmful in any direct way, but a large quantity of electromagnetic radiation can cause cancer.

One thing to do whiles heating food is to AVOID plastic! If you heat plastic in the oven there are health risks because plastic has toxic in it and when you heat the plastic (toxic) it becomes very dangerous for people around the micro ovens or people eating the food.

Another material or well thing you should avoid putting in the micro oven is water! If you want to boil a cup of water, do not ever put the cup in the microwave oven to be heated, that’s the worst thing to do. Obviously the glass contains plain water you put it in the microwave oven to heat your water. Your water can become over heated, way past its boiling point and start to form huge bubbles which then begin to shake the cup really fast and then BOOM your glass cup explodes.

Microwave ovens don't cook food evenly. When your cooking a meal for instant meat and rice, the micro oven will cook some bits of the meal it may forget some other bits and leave those bits to be raw. The raw bits can contain bacteria that can make people very sick.

"It's true any type of cooking changes the chemistry of life" Microwave ovens can alter which means change the properties of food. They can increase some parts of the food that aren’t the healthiest thing and they can decrease nutrition switching the food to contain bacteria and may be poisonous. This problem only happens in small amount but still a lot of small amounts may turn into a big amount and it might affect your health.

Metals reflect of electromagnetic which causes them to heat up, if a human has any contact with it they can suffer sever burns or worse. Micro ovens can also be very sensitive towards the eyes. If you want to check how your food is doing in the micro oven and you go and check you peek in the oven to see how it’s doing and boom. The heat is all over the micro oven so it also hits your face and that affects your eyes, your eyes may become watery or very d

= = **Almost everyone uses microwave oven on a daily bases including me. Microwave ovens do have a lot of affects on a human but that does not mean you cannot ever use it. I answered two questions on my page “How it affects us human’s?” and “How do microwave ovens use a electromagnetic spectrum?” I answered those questions to complete my assignment, I answered it because I wanted to show us humans how microwave ovens have an affect on us human’s and how it uses electromagnetic spectrum. I hope this Wiki page didn’t scare you from using microwave ovens the purpose of this was to just tell people**.

**__ ﻿ Citation ﻿ __**

"Electromagnetic Spectrum stretches from radio waves to gamma rays." //Electromagnetic Spectrum//. N.p., n.d. Web. 13 Apr 2011. .

"11 Surprising Facts and Myths About Microwave Ovens." //MSN//. N.p., n.d. Web. 13 Apr 2011. .

"Use Your Microwave Safely." //FDA u.s food and drug administration//. N.p., November 12, 2008. Web. 13 Apr 2011. .

Jay M., Pasachoff. //Technology and Society: Microwave ovens//. Boston, Massachusetts, Upper Saddle River, New jersey: Pearson education, 2008. 82-83. Print

__**Pictures**__

[] Microwave oven picture

[]: electromagnetic spectrum

[] : Waves

[] Inside a micro oven

[] Magnetron

[] Rice