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How do microwave ovens work?
In a microwave oven, food is cooked by exposing it to microwave radiation. Most household microwave ovens operate on a frequency of 2450 megahertz (MHz or million cycles per second) in a continuous wave (cw) mode. Larger ovens used for industrial applications sometimes operate at 915 MHz.
The source of the radiation in a microwave oven is the magnetron tube. The magnetron, basically, converts 60 Hz powerline electric current to electromagnetic radiation of 2450 MHz. The high voltage (typically 3,000 to 4,000 volts) which powers the magnetron tube is produced by a step-up transformer rectifier, and filter which converts the 120V AC (alternating current or 60 Hz line voltage) to 4 kV DC (direct current).
The microwave energy from the magnetron is transferred to the oven cavity through a waveguide section. A mode stirrer spreads the microwave energy more or less evenly throughout the oven.
The microwave radiation produces heat inside the food in the oven. Heat is produced when the water molecules in the food vibrate (at a rate of 2,450,000,000 times per second) when the food absorbs the microwave radiation. The movement of the molecules produce friction which causes heat. This heat cooks or warms up the food.
Originally posted by Mdv2
Prestigious doctor: US nuclear 'Baby valley of death,' Millions to die
4 weeks ending March 19, 2011 – 37 deaths (avg. 9.25 per week)
10 weeks ending May 28, 2011 – 125 deaths (avg.12.50 per week)
This amounts to an increase of 35% (the total for the entire U.S. rose about 2.3%), and is statistically significant. Of further significance is that those dates include the four weeks before and the ten weeks after the Fukushima Nuclear Power Plant disaster. In 2001 the infant mortality was 6.834 per 1000 live births, increasing to 6.845 in 2007.
What I have been reading indicates that the Fukushima disaster has surpassed the Chernobyl disaster in amounts of radiation released, and it is not over by a long shot. Add the plutonium from the MOX fuel used and stored there and it seems that is a whole different ballgame.
Originally posted by Gazrok
I'm betting we are subjected to more radiation daily from our surroundings (microwave ovens, cell phones, power lines, etc.) than any of us will EVER get from that Japanese plant (even if you're in Japan or Hawaii).... Sounds like alarmist BS to me. We do have a benchmark, just look at the area affected by Chernobyl, etc. and recall it was a worse disaster.
Originally posted by butcherguy
What I have been reading indicates that the Fukushima disaster has surpassed the Chernobyl disaster in amounts of radiation released, and it is not over by a long shot. Add the plutonium from the MOX fuel used and stored there and it seems that is a whole different ballgame.
Originally posted by undo
Originally posted by butcherguy
What I have been reading indicates that the Fukushima disaster has surpassed the Chernobyl disaster in amounts of radiation released, and it is not over by a long shot. Add the plutonium from the MOX fuel used and stored there and it seems that is a whole different ballgame.
wouldn't our own above ground tests be a clearer indicator? i mean we were blowing up nuclear bombs on a regular basis, above ground in nevada, for quite some time.
anybody?
edit on 21-6-2011 by undo because: (no reason given)
Originally posted by GogoVicMorrow
That said I doubt most of this story is true. I would say if you are in Japan or relatively close to Japan you should be concerned, but probably not so much in the US.
Originally posted by undo
reply to post by Aeons
well didn't they use more than one kind of nuclear bomb in their tests?
One of the most controversial test series, release more radiation to continental U.S. than any series. Close proximity of troop exercises to shot "Smoky" produced significantly increased levels of leukemia among exposed soldiers.
Originally posted by butcherguy
reply to post by Byrd
The 'Fat Man' bomb used at Nagasaki, Japan at the end of WWII was an implosion-type plutonium bomb.
I believe that there were a lot of above ground tests done with plutonium fission bombs, not to mention hydrogen (fusion) type bombs tested later.
Source: wiki- United States nuclear tests