A hospital autoclave sterilizes with pressurized steam heated up to 270 F (132 C), something your microwave simply cannot do. Microwave radiation and the associated heat may kill some bacterias and/or germs, but, no, microwaves do not sterilize food.
They produce waves of microwaves that heat the food from the inside out. The microwave was invented in military weaponry.
A microwave raises the temperature of food by subjecting it to a high-frequency electromagnetic field. The microwaves are absorbed by water, fats, sugars, and certain other molecules, whose resulting vibrations produce heat. The heating thus occurs inside the food, without warming the surrounding air
To elaborate a little further, the radiation that is generated is at a very specific frequency (in the microwave region) that hits the resonant frequency of water, causing the molecules of water to vibrate much more quickly than other substances at that wavelength and thus why the air is not heated as well.
Water molecules are dipolar molecules. This means that they organise their electrons in such a way as to make one side of the molecule positively charged and the other side negatively charged.
Microwaves are actually radio waves in a specific wavelength and frequency band. In microwave ovens this is usually around 12.2 cm and 2.45 GHz. Microwaves (and all other electromagnetic waves) form oscillating electric fields which go from positive to negative and back again in this case 2.45 billion times a second.
Because opposite charges attract and like charges repel and the electric field keeps changing from positive to negative and back again, this forces the water molecules to continuously realign themselves to try and keep up (or more technically to try and minimise the force on their positive and negative poles).
Now this rotational motion causes the molecules to bump into each other increasing their random (movement or) kinetic energy. The random kinetic energy of molecules is another way of decribing heat! So the more kinetic energy the molecules have the hotter the material becomes.
The microwave heats the food faster than other methods, it doesn't generate as much ambient heat so it doesn't heat up the kitchen as much as a stove or oven, and you can heat food in the same dish you serve in if it's microwave safe.
Microwaves heat up the water molecules in food, causing them to vibrate and generate heat. This thermal energy then cooks the food from the inside out.
vibrate ...... and the friction of the molecules vibrating causes heat, which cooks the food
they cause it to heat up and the molecules go wild because they are being heated and it causes them to bubble up
Microwaves emit electromagnetic radiation in the form of microwaves when they are turned on. This radiation is absorbed by food and causes water molecules in the food to vibrate, generating heat that cooks the food.
No, wood does not absorb microwaves as effectively as food or liquids do. Microwaves are designed to excite water molecules in food, causing them to heat up. Wood contains very little water, so it is not a good absorber of microwaves.
Microwaves cause water molecules to vibrate rapidly, generating heat through friction. This heat is what cooks or heats up food when placed in a microwave.
Substances like water, fats, and sugars absorb microwaves, causing them to heat up when placed in a microwave oven. This absorption of microwaves leads to the efficient and even heating of food items that contain these substances.
Mercury is not used in microwaves. Microwaves use magnetrons to generate microwave radiation, which heats food by causing water molecules to vibrate. Mercury is a toxic element and is not safe for use in consumer products like microwaves.
Microwaves emit electromagnetic radiation in the form of microwaves when they are turned on. This radiation is absorbed by food and causes water molecules in the food to vibrate, generating heat that cooks the food.
Microwaves can be used to send signals or to cook food.
Microwaves aren't safe, but microwaved food is.
No, wood does not absorb microwaves as effectively as food or liquids do. Microwaves are designed to excite water molecules in food, causing them to heat up. Wood contains very little water, so it is not a good absorber of microwaves.
Microwaves.
A convection microwave uses both microwaves and convection heating to cook the food. The convection cooking allows the food to be browned and cooks the outer part of the food while the microwaves cook the interior of the food.
No, sound waves cannot cook food the way microwaves do. Microwaves heat food by causing the water molecules inside to vibrate rapidly, generating heat. Sound waves do not have the same heating effect on food as microwaves.
Microwaves
To warm food.
the microwave makes the water molecules in the food move and bump around this causes friction in the food to be cooked.
no the microwave can not cook food from the inside out.
Water molecules in the food. Microwaves work by only vibrating the water molecules, in order to increase the temperature of the food without significantly altering the properties of the food itself.