Microwave Ovens

No, a microwave is not an example of conduction. Conduction is the transfer of heat through direct contact between two objects, while a microwave heats food through electromagnetic radiation.

Microwaves are produced by electronic devices called magnetrons, which convert electrical energy into microwave radiation. This radiation heats and cooks food by exciting the water molecules within it.

Microwave ovens emit non-ionizing radiation, in the form of microwaves, that heats food. Standing at a distance recommended by the manufacturer poses no significant health risk as the radiation decreases quickly with distance. Following safety guidelines and using a properly functioning microwave typically results in minimal exposure to radiation.

Most microwaves are made of stainless steel, which is a corrosion-resistant alloy that is durable and easy to clean. The interior cavity of a microwave is typically coated with a special heat-reflective material to help distribute and contain the microwaves.

Most people would think that microwaves use heat to warm up the food, but that isn't true. As you know almost every food has traces of water. What a microwave does is it send waves of electricity which "excites" the water inside the food. When water is "Excited" it produces heat which warms up the food. So basically the food warms it's self up. For example have you seen when lightining strikes a tree?. The tree sets on fire because the lightining " Excites " the water in the tree. So then the tree produces heat and sets it self on fire because it produced too much

Hope this helped

Claudia :D

Microwaves heat up food by exciting water molecules within whatever you put ino the microwaves path. This causes them to vibrate, this vibration heats the food up via conduction. Although remember that the water itself is "heated via the radiation of the microwaves.

The primary use of microwave radiation is for communication. Short wavelength (high frequency) electromagnetic energy is used in all the places we look. Certainly we're familiar with it as it's used to heat up things like a cold cup of coffee. But microwaves, those higher energy "radio" waves, are used to make cell phones work, as well as to link up satellites with ground stations. Many folks encounter and use microwaves every day.

The development of the microwave oven isn't really an extension of quantum mechanics. It's more an extension of the work of Faraday, Maxwell and Hertz, and that work was done in the late 1800's. The microwave oven applies electromagnetic radiation (emr) to the heating of stuff. And emr has everything to do with electricity and moving electrons. It really doesn't have that much to do with anything relating to the nucleus of the atom. That's generally where quantum mechanics is at its best. Though quantum mechanics gave us a much better "look" at the electron, its basic nature as regards what we can do with it to generate emr doesn't really require knowledge of, say, an electron's quantum mechanical property of spin. We build a magnetron and generate microwaves to pop popcorn and (re)heat coffee without any help from giants like Werner Heisenberg, Max Planck, Louis de Broglie, Niels Bohr, Erwin Schrödinger, Max Born, John von Neumann, Paul Dirac, Wolfgang Pauli, Richard Feynman and others who spent the largest portion of their lives - their lives - contemplating and defining the quantum mechanical nature of the world in which we live.

Many molecules (such as those of water) are electric dipoles, meaning that they have a positive charge at one end and a negative charge at the other, and therefore rotate as they try to align themselves with the alternating electric field induced by the microwaves. This molecular movement creates heat as the rotating molecules hit other molecules and put them into motion. Microwave heating is most efficient on liquid water, and much less so on fats and sugars (which have less molecular dipole moment), and frozen water (where the molecules are not free to rotate).

You simply put in your plate (or bowl) of food (without any silver or gold lining of course) ,then enter the amount of time you need to warm or defrost the food. Warning:do not put in microwave with any silverware

Microwave radiation is used in a microwave oven. Microwaves are a form of electromagnetic radiation - radio waves - and the oven operates right at about 2.45 gigahertz. That's 2,450,000,000 hertz or cycles per second, if that makes more sense. This non-ionizing radiation works directly on molecules that have an electric dipole, and it will cause them to try and align themselves with the incoming radiation. This is called dielectric heating, and the increased energy appears as increased molecular motion, which is expressed as heat.

no, an onomatopoeia is a word which sounds like what it is. for example, "bang" is the name of it as well as the sound it makes

No, a microwave doesn't have to spin to cook popcorn. While some microwave models have a turntable that rotates to ensure even cooking, it's not a requirement for cooking popcorn. Additionally, some advanced microwaves with sensor cooking technology can detect when the popcorn is ready based on humidity levels, providing optimal results without the need for rotation.

it leads to an increase in output

Coquere - to cook.

Rinse barley first using a strainer. Pick out any debris that might have made it through processing.

Allow barley to soak overnight in water if you want to reduce your cooking time. Use two cups of water for each cup of barley.

Decide whether you'll be using water or broth to boil your barley.

Use 2 1/2 to 3 cups liquid to 1 cup barley. Add your liquid to the pot.

Bring water or broth to a boil.

Add barley to boiling water or broth and stir together. Cover the pot with a lid and reduce the heat to low. Cook for 15 minutes if you pre-soaked your barley overnight. Otherwise, cook your barley for 35 to 40 minutes.

You can prepare turtle in a variety of ways, the easiest for survival means would be to lay the turtle on a bed of hot coals for about 20 min. Then just crack the shell and enjoy. Be sure to fully cook the turtle though, they can carry some nasty bugs, like salmonella

Leavi it out in the sun and keep away from water.

Microwaves cook (heat) the outsides of the food first. So stirring part way through the cooking time allows a more even heating.

You can, but you'd end up with some possibly flammable fumes. We would advise against it, unless you are just warming something that contains alcohol. You would not want to get it too hot.

You can't. Only if it's a microwave-oven

Yes you can. Place a large pot on the stove and turn the temperature to medium. Once the pot has heated up, cut the popcorn package and empty contents in to hot pan. Wait till you hear the first pops and then start moving the pan in circles over the burner, agitating to move around the kernels and prevent burning. You will know when it is done when the popping stops, remove from the stove and enjoy!

325 degrees for 16 to 19 minutes in a home oven. Here is the website http://www.spunkmeyer.com/products/products.aspx?mID=9&itcd=58327

A microwave convection oven is an appliance that combines the technology of a microwave oven and a convection oven. It uses microwaves to cook food quickly and evenly, and convection to evenly distribute heat throughout the oven.

When the oven is turned on, the microwaves are released from the walls of the oven and penetrate the food. The microwaves cause the molecules in the food to vibrate, which generates heat. This heat is then distributed evenly by the convection fan, which circulates heated air around the food, cooking it quickly and evenly.

The convection fan also helps to ensure a more even baking of cakes and other items, as it moves the hot air around to ensure a more even distribution of heat.

The combination of microwaves and convection allows for faster cooking times and more even cooking results than with either technology alone.

You don't have to reset the oven.