Microwave only turns on when door is opened

Page 4 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

patentman

Golden Member
Apr 8, 2005
1,035
1
0
Originally posted by: Cattlegod
a microwave is just a lightbulb at a different frequency range. if your hand or any other part of you starts to heat up, you are too close. You will feel the heat before it does any burning damage to you.

Are you sure of this. I think the bulb and fans are just spinning when the door is openned, not nessisarily the part that generates microwaves.[/quote]

there are two bulbs in the microwave, one for light and one for generating the microwaves. I agree with what you said that it probably is the light and fat on, and it is not emitting any microwaves.

A simple way to test this is stick a bowl of water in the microwave while it is open and you think it is running. if it is releasing microwaves, it will heat up.[/quote]

Sorry, try again. A microwave oven does have a light bulb, but the actual component that emits microwaves is called a magnetron. Microwave ovens are deisgned to impart a high wattage of power at a specific frequency (~2.45 GHz). While it may be possible to design a bulb that would emit a broad spectrum of microwave frequencies, it would be exceedingly difficult to get that bulb to emit high power at a single frequency.
 

patentman

Golden Member
Apr 8, 2005
1,035
1
0
Originally posted by: b0mbrman
Wait, so that crappy little door to the microwave protects me from the dangerous radiation inside?

What's it made of? Asbestos?

Actually, microwave doors can be made from a wide variety of plastics, but typically they consist of an aluminum or stainless steel mesh embedded in polycarbonate




 

patentman

Golden Member
Apr 8, 2005
1,035
1
0
Originally posted by: Smartazz
Originally posted by: mordantmonkey
how hard would it be to make a microwave gun, parabolic reflector ray-gun style? it'd be pretty sweet to cook hotdogs from across the room.

Great idea for an invention. I wonder how dangerous this would be though.

U.S. Military already has one. It was developed for crowd control. They want to use it in Iraq but a bunch of people got pissed. I think some senator actually indicated that it should be tried out on U.S. citizens before we use it somewhere else. I'm not joking, this was on the news recently.
 

patentman

Golden Member
Apr 8, 2005
1,035
1
0
Originally posted by: Rock Hydra
Originally posted by: Baked
Originally posted by: NanoStuff
Originally posted by: virtualgames0
The stark percentage of ATOTers that are ignorant enough to think that microwaves are radioactive is shocking. :laugh:

What the hell are you on about? Everything's radioactive; my router is radioactive, so are my testicles believe it or not.

You have glow in the dark balls?

Heat is a form of radiation.

Dear lord :roll: While I agree that heat is a form of radiation, and the various particles and waves emitted from radioactive materials are a form of radiation, radiation and radioactivity are NOT the same thing.

ra·di·o·ac·tiv·i·ty (rd--k-tv-t)
n.
1. Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction.
2. The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.

ra·di·a·tion (rd-shn)
n.
1. The act or process of radiating: the radiation of heat and light from a fire.
2. Physics
a. Emission and propagation and emission of energy in the form of rays or waves.
b. Energy radiated or transmitted as rays, waves, in the form of particles.
c. A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
3.
a. The act of exposing or the condition of being exposed to such energy.
b. The application of such energy, as in medical treatment.
4. Anatomy Radial arrangement of parts, as of a group of nerve fibers connecting different areas of the brain.
5.
a. The spread of a group of organisms into new habitats.
b. Adaptive radiation.
 

Smartazz

Diamond Member
Dec 29, 2005
6,128
0
76
Originally posted by: mordantmonkey
how hard would it be to make a microwave gun, parabolic reflector ray-gun style? it'd be pretty sweet to cook hotdogs from across the room.

Too late.
Text
edit: I just read someone's post about the military using this. It might be a good invention for police though.