Why does a microwave radiation warms foods without heating the containers?
477927
my containers are hot
460793
microwaves cause water molecules to vibrate which heats the food contained.  So heating things in microwave does not destroy the nutritional value.  For your protein power it may cause it to denature...but that would happen in your stomach anyways. so i would say you are OK microwaving your protein.
1079905
Microwaves cause the water molecules in the food to vibrate rapidly making heat from the friction.  No harm if you don't tamper with the oven's seals etc.
277213
The phenomenon that the ants and cockroaches take advantage of is that microwaves form standing waves within the oven cavity.\n\nSo in some places in the oven space, the energy density is very high, whereas in others it is very low. This is why most ovens have turntables to ensure that cooking food is heated evenly throughout.\n\nThis standing wave pattern can be observed by putting a static tray of marshmallows in the microwave, and heating for a while. The result will be a pattern of cooked and uncooked marshmallows. The standing wave pattern, however, varies according to the properties and position of any material within the oven, such as a cup of water.\n\nThe ant will experience this pattern as hot or cold regions within the oven and can thus locate the low-energy volumes. If the ant is in a high-field region, its high surface area to volume ratio allows it to cool down more quickly than a larger object while it searches for a cold spot.\n\nIt is a common myth that microwaves are too big to heat small objects. The fallacy of this has been demonstrated by chemists who employ microwave heating in their work. Certain types of catalyst consist of microwave-absorbing particles--typically of submicron size--dispersed throughout an inert support material. There is convincing evidence that microwaves are capable of heating only the tiny catalyst particles. \n\nThere is very little microwave energy near the metallic floor or walls of the oven. The electromagnetic fields of microwaves are "shorted" by the conducting metal, just as the amplitudes of waves in a skipping rope, swung by a child at one end but tied to a post at the other, are reduced to nothing at the post.\n\nAn ant crawling on the rope could ride out the motion near the post, but might be thrown off nearer the middle.\n\nFor a quick demonstration of this, place two pats of butter in a microwave in two polystyrene coffee cup bottoms, one resting on the floor, the other raised on an inverted glass tumbler. Be sure to place a cup of water in the microwave as well. On heating, the raised butter will melt long before the butter on the floor.
704854
Microwaves are set at a certain frequency that matches that of water molecules, so when you put an egg in the microwave, the water inside the egg heats up (fast!) and hot things expand and create PRESSURE :) especially if it gets hot enough to reach a gaseous state.\n\nEgg shells, however, do not contain as much water as the inside of the egg, so they do not expand.\n\nSo when the inside of the egg is pushing outwards and the eggshell is stubbornly sitting there, it EXPLODES!
822916
heating distilled water for about 10 minutes and then dropping a skittles or something about that size in it...it is \n!!!VERY DANGEROUS!!!DONT TAKE IT OUT OF THE MICROWAVE UNTIL ITS COOLED OFF!!!
1092882
I've never heard any evidence to lead me to believe that is true, but that does not mean it isn't of course.\n\nI do know that it is a really bad idea to eat in a microwave oven. Very uncomfortable, and if anyone turns it on, you can be seriously injured. Avoid doing so whenever possible.
863405
To get the water in a microwave to go above 100C, you need to prevent it from boiling. The process of boiling takes up the heat required to raise its temperature.\n\nTo do this, you need distilled or deionized water (removing impurities/particles makes it harder for water to boil). When you microwave the water, it is possible to get it past 100C without causing the water to boil.\n\nBe careful when you do this however, the slightest agitation to the superheated water will cause it to EXPLODE and scald whatever it touches.
242893
Hmm, I'm sitting here thinking about how microwaves work (yes, I do know how). If the pills have moisture in them (which I'm sure they do), then the electons in the pills can get energized by the microwaves and change the substance of the pills completely. The heat from the outside of the microwave itself though can alter the chemicals in the pills. It might be unlikely that anything happened to yours, but I'd just be on the safe side about it.
1886
If you're talking about microwave ovens, the microwave heats up the water molecules in an egg, creating steam which builds up enough pressure to cause it to explode.
733150
No, but you are liable to ruin the microwave by putting metal items inside and turning it on!
495856
not that i know of, in fact my microwave puts additional flavor in my food, but i haven't cleaned it ever nor have i put a lid on anything, and i don't use a plate, i put my lasagna on the rotating tray, then remove it with my paws, then i cook macaroni in the microwave, i put the noodles and water and cheese powder and milk on the rotating tray, then i pour my cereal on it too, just fo kicks, all my friends love it, only kidding, i can't believe you fell for that, i don't really have friends, wahhhhh!!!
593820
If the radiation increases the energy level of the molecule (like boiling water in a microwave oven) heat is transferred.
131162
At the heart of a microwave oven is a device called a magnetron which generates electromagnetic waves at extremely high frequencies. The magnetron is also used in radar systems. When the high-frequency radiation interacts with various materials, particularly materials containing moisture, their molecules vibrate at frequencies close to that of the radiation, thus heating the material.
37612
the short answer is no. \n\nA microwave does not pass heat to the food the way an oven does, instead a microwave utilizes the principle of dielectric heating. basically what this means is that the microwave (which is an invisible form of everyday light) is made of an electromagnetic wave. This electromagnetic wave is passed throughout the cooking chamber where it interacts with the food. Heres the thing...most molecules are dipoles which means that they have a negative and a positive side to them.....the electromagnetic microwave interacts with the molecules and makes them dance to line up with the feild. Its this motion of the molecules that creates the heat. Microwaves have been designed to interact primarily with water molecules because most food has some water in it. This doesn not mean that other dipolar molecules in plates, cups or utensiles would not try to align themselves with wave. If they did then they would have been heated by the microwave. In fact, any molecular movement caused by the microwave could be considered heat and I'm sure that this movement is not limited to water.
29427
Because the microwave is actually a time machine. Set it for 24 hours and crawl inside.
917582
Not very well. Biscuits need time to rise while they cook. With a microwave you just get hot biscuit dough.