Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: Plasma made by grapes in microwave ovens

Learn more physics!

Most recent answer: 10/22/2007
Q:
a teacher told me that if you put grapes in the microwave they turn into "plasma balls". could you explain to me the details in how this could happen?
why people cheat marriage affairs how many people cheat
cheater read wifes who cheat
hillcrest abortion clinic stories of abortion live abortion video
finasteride lasix 40mg cialis 80mg
ventolin 2mg bistromc.org deltasone 40mg
free online coupons pharmacy coupon new prescription coupons
imitrex 50mg thepoliticalsword.com flagyl 200mg
manufacturer coupons for prescription drugs viagra 2016 coupon coupon prescription
cialis coupons from lilly prescription drug cards coupons for prescriptions
cialis manufacturer coupon link prescription drug coupons
coupons for prescriptions discount prescription coupons drug prescription card
discount prescription drug cards nationalautocare.com prescription discounts cards
champix alkohol go champix
diflucan 150 diflucan djelovanje diflucan sirup
proscar vs propecia for hair loss proscar pris proscar pris
cialis cialis discount cialis walgreen coupon
cialis driverblog.suddath.com cialis walgreen coupon
how expensive is an abortion link abortion clinics dallas tx

- Elisa McClain (age 16)
manteno, il usa
A:
Elisa- I had prepared a snotty answer about how your teacher was all wrong, since when Iíve burnt things up in the microwave no plasma formed. However, my colleague Tim referred me to two sites describing how to use grapes to generate a plasma in a microwave oven: and .

The key idea is this. In ordinary use, the electric fields inside a microwave are too low to generate plasmas, which are made when electric fields tear apart molecules into electrically charged ions. However, if you violate the manufacturerís instructions and run the oven with almost nothing in it to absorb energy, the microwave energy density and hence the electric fields build up far above the usual levels. In the process they may damage or destroy the microwave oven, so, unless youíre rich, this is not a good experiment to try.

Now it turns out that grapes are just the right size to further focus the electric fields in the oven. Two grapes placed close but not quite touching will produce a large field between them, sometimes enough to make a plasma.

Again, donít do this unless you are prepared to sacrifice a microwave oven.

Mike W. (w essential corrections from Tim!)
the best android phone link phone tracking apps
married men cheat with men open wifes cheat
walgreens coupons deals site walgreens photo print coupons
walgreens coupons deals blog.mrwade.co.uk walgreens photo print coupons
married cheaters site dating for married men
buy sildenafil 100mg viagra without a doctor prescription viagra 100 mg
rite aid prescription transfer coupon mesutcakir.com.tr coupon rite aid
new prescription coupon discount drug coupons prescription coupon card
pfizer coupons for viagra prescription coupon viagra discounts coupons
prescription discount coupons open viagra discount coupons online
manufacturer coupons for prescription drugs viagra coupons 2016 coupon prescription
manufacturer coupons for prescription drugs online viagra coupons coupon prescription
can i take minocycline with birth control can i take minocycline with birth control can i take minocycline with birth control
viagra bestellen online viagra pillen kruidvat pillen kopen
cialis coupon lilly click transfer prescription coupon
cialis coupon card eblogin.com cialis coupons from manufacturer
drug discount coupons link discount coupons for prescriptions
naprosyn roche rileytech.net naprosyn nedir
cefdinir red stool ski-club-auringen.de cefdinir nedir
lasix injetavel lasix lasix
voltaren retard voltaren forte voltaren spray
voltaren retard link voltaren spray
prescriptions coupons coupons for prescriptions drug prescription card
trental cena link trental nuspojave
vivitrol alcohol what is vivitrol shot narcan challenge

(published on 10/22/2007)

Follow-up on this answer.