Haaaalelujah
- Thread starter Cowgirl
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I don't wanna be a soccer mommy tomorrow...
I :heart: Otters and Burgers.
cattitude
My Sweetest Boy
kwillia said:Put a couple wintergreen lifesavers in your mouth. Go into the bathroom and turn off all the lights then while facing the mirror, crunch the mints between your teeth while keeping your mouth open and you will see sparks...
Ya ever tried that pop rocks trick under the covers...oh wait..wrong forum...
Otter
Nothing to see here
kwillia said:Put a couple wintergreen lifesavers in your mouth. Go into the bathroom and turn off all the lights then while facing the mirror, crunch the mints between your teeth while keeping your mouth open and you will see sparks...
haha, Kwillia..Glad I looked before I tried that..linkie...www.snopes.com/wintergreen_teeth
Pete
Repete
6 foot Grand Champion trophy TVMMMDad said:Be careful telling Pete he's wrong. He has a TKD trophy and all.
Anyway, I have researched this and there are several possible explanations.
1. The dish she used may have had a metal decorative edge.
2. The green beans might have been the same length and layed perfectly parallel acted as a dipole antenna.
3. The waveguide cover has dried food (from splatters) on it causing reflected RF. Explained here
Since a green bean is mostly water, the wavelength of a typical microwave is 8 meters, wouldn't the green bean have to be 8 meters, or a submultiple of 8? So in order to reach resonance that green bean would have to be pretty long even if it were a quarter wavelength of 2 meters.
Also since we are talking about a physical non metallic when we say "resonance" we are speaking about physical vibration which has little if anything to do with emitting sparks. If the water molecules in a green bean actually was excited to a "resonance" that matched the 2.5Ghz of the RF in, it would no doubt vaporize.
In any case RF is either reflected, refracted or absorbed. To spark the green bean must reflect the RF. Given it's high water content and that water is a great absorber of RF it would be highly unlikely a green bean alone would reflect RF.
MMDad
Lem Putt
When I first mentioned wavelength, I knew the topic was sooooo boring that nobody would really care. 8 meters is not 2.5 GHz.Pete said:6 foot Grand Champion trophy TVM
Anyway, I have researched this and there are several possible explanations.
1. The dish she used may have had a metal decorative edge.
2. The green beans might have been the same length and layed perfectly parallel acted as a dipole antenna.
3. The waveguide cover has dried food (from splatters) on it causing reflected RF. Explained here
Since a green bean is mostly water, the wavelength of a typical microwave is 8 meters, wouldn't the green bean have to be 8 meters, or a submultiple of 8? So in order to reach resonance that green bean would have to be pretty long even if it were a quarter wavelength of 2 meters.
Also since we are talking about a physical non metallic when we say "resonance" we are speaking about physical vibration which has little if anything to do with emitting sparks. If the water molecules in a green bean actually was excited to a "resonance" that matched the 2.5Ghz of the RF in, it would no doubt vaporize.
In any case RF is either reflected, refracted or absorbed. To spark the green bean must reflect the RF. Given it's high water content and that water is a great absorber of RF it would be highly unlikely a green bean alone would reflect RF.
Microwaves work at 2450 MHz, which is a wavelength of 12.24 cm, or almost 5 inches. it is very feasible for a 1.25 inch bean to act as a 1/4 wave dipole and cause some arcing.
Cowgirl
Well-Known Member
Sorry...I didn't even realize this thread had been posted. I thought it was obliterated when my computer froze, and I was too lazy to post again.
The plate didn't have a metal decorative edge. This is a possible explanation:
Microwave generate magnetoelectric wave that energise all dielectric
molecules, molecules that contain higher dielectric index will be energised
more those lower. For example, heating water is easiler than oil. Material
does not have dielectric index or very low index, will not be heated up
easily, such as glass. It is "transparrent" to microwave.
The heating of carrots is a localized boiling, or char because it contain
dielectric material at that particular part of carrot. So spark comes out as
it is over energised. Metal is not accepted to be used in microwave oven
unless the oven is specially made for that purpose.(It is available for
industrial or research purpose only.) This is why microwave heating is not
even as traditional heating that contains liquid as a media.
I found that here
But the greenbeans weren't frozen...they were canned. Next time I'll just use water. :shrug:
The plate didn't have a metal decorative edge. This is a possible explanation:
Microwave generate magnetoelectric wave that energise all dielectric
molecules, molecules that contain higher dielectric index will be energised
more those lower. For example, heating water is easiler than oil. Material
does not have dielectric index or very low index, will not be heated up
easily, such as glass. It is "transparrent" to microwave.
The heating of carrots is a localized boiling, or char because it contain
dielectric material at that particular part of carrot. So spark comes out as
it is over energised. Metal is not accepted to be used in microwave oven
unless the oven is specially made for that purpose.(It is available for
industrial or research purpose only.) This is why microwave heating is not
even as traditional heating that contains liquid as a media.
I found that here
But the greenbeans weren't frozen...they were canned. Next time I'll just use water. :shrug:
itsbob
I bowl overhand
There was something similar about Altoids.. what was it.. open mouth.. sparks flying..kwillia said:Put a couple wintergreen lifesavers in your mouth. Go into the bathroom and turn off all the lights then while facing the mirror, crunch the mints between your teeth while keeping your mouth open and you will see sparks...
Oh wait,, I remember what it was..
Nebbermind..