Seeing Where the Microwaves Are in a Microwave Oven
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- čas přidán 10. 11. 2010
- Microwaves are absorbed by wires creating current in the wires which can drive a neon lamp like this guy en.wikipedia.org/wiki/File:Neo.... I drilled a grid into a piece of plastic and slipped in the bulbs, leaving the wires to hang out like antennas. As the plate turns, the bulbs go into and out of places where the microwave energy is denser, illuminating the bulbs. No, it doesn't seem to hurt the microwave. You can find out more about how to make this by going to kossover.squarespace.com/journ....
Edits: I do seem to suggest that microwaves are only absorbed* by things that conduct electricity. That's not true, of course. The changing electromagnetic field of the microwaves will oscillate anything that has a charge or is polar. I was trying to point out that microwaves can move electrons in wires. Even slightly salty water does seem to heat faster in my poorly controlled experiments, though.
"Absorbed" isn't quite the correct term, I know.
Oh, and kids, don't try this at home without your parent's permission. Many things do not like going into a microwave and will catch fire or spark or both. Your parents will be mad, and the fire department will be annoyed as well.
Marc "Zeke" Kossover, physics and environmental science teacher, The Jewish Community High School of the Bay, San Francisco, California - Věda a technologie
This demo really shows why you dont want to place food items directly in the center of the microwave for optimal heating! Awesome
so precious! I love the transparency of the guys nerves when he explains everything! super cool video.
I honestly never thought i'd find something educational on youtube... nice vid
@dongor94 The neon bulbs work particularly well because they are so simple, cheap and small. Fluorescent tubes do glow in microwaves, but the electronics in a compact fluorescent bulb would get fried. I haven't put a halogen bulb in. I've put smaller incandescent bulbs (like flashlight bulbs) and they glow briefly and brightly until they burn out.
Ah ha! I have this exact same microwave and it does heat better on the edges. Nice to see proof. Interesting to see a load effect with the water when it then only lights up when it passes the magnetron. Bet this becomes some kind of diagnostic tool; you better patent it if it's your own idea. Good job!
This is frickin' awesome! Thank you for doing this!!
good work, man. i dont know what you did this for (school project, fun, etc.), but well done.
This is incredible and informative! Awesome!
Beautiful microwave!
Kitchen light show! Super neat!
sweet vid koss! very cool!
This is very very cool. You also have an excellent voice.
This was his PHD dissertation, now he can work for Dr. Venture.
Everything about this video is good with the exception of the narrator
Awesome video. Way cool to see.
this is pretty cool! good job :)
imagine watching this 11 years later
I am looking for this neon lamp board for a while. can you tell me where I can buy it online?
Love the leaking radiation causing the the camera to "fuzz" out the grid turns inside.
Free house party disco lighting!
Seriously though, that was a cool video.
Is it just with neon bulbs?
Would a CFL or other halogen lights do something similar?
thank you. This vid helped me with a school presintation. :)
I have that microwave. Just press the "Start/Quick Cook" button and it'll start at :30 seconds. Press it more to add 30 seconds at a time. This saves you like 3 whole seconds and you can get on with life faster.
Oh, and cool demonstration.
I approve of your method
awesome info man..really cool
Great video. Thanks!
Thank you.
Very good video.
NO HE'S MY TEACHER!
EVERYONE BE JEALOUS HE TEACHES US
wow that is something.. thanks for sharing well done!
wow it's like christmas nice
Cause of glowing is the plasma created by the microwave inside the vacuum not absorption of energy by the bulb's wire.
pooyamz
It is superheated gas but not to the heat of plasma
Can I put a bucket of water next to my bed to absorb any microvaves coming at me while I sleep? Does this mean that urine can be a measure medium for how much efr has recently entered the body? I appreciate any answer, thanks!
very good vidow i love things like this well done :)
This is so cool! I'm gonna try this out with a fork!
can you write a lab report for me? listening to you makes me realize that did you OHPEC on this like no other lol
very cool
nice job
The link to how make this doesn't seem to be working. Do you have another website to go to? I was going to use this for a science project.
VOODOO MAGIC!
What's the model of this microwave actually? It's an Emerson...
what cause a grape to spark and a bell peppers cause fire to the roof?
awesome
You can them from Jameco.com or Kelvin.com
cool vid
That is one sexy sounding science nerd.
@smmmokin You're welcome.
So that's why when you put a bowl of soup the bowl only gets hot
You can get those lamps from fluorescent starters, can't you?
THATS MY TEACHER!
Damn, have you ever heard about Cave Johnson?
@eKranti I do.
awesome video!
too bad plasma tv screen doesnt fit inside
genious !
Is it correct understood to say, water is not only intended by microwaves, it's vice versa also? And does that mean humans are attracting microwaves...?
Yay Science! Pretty Fun indeed
@zkossover Aww :C You make a fine narrator.
11 people think that microwave ovens are made of black magic.
If we're being scientists here, is worth calling that stuff water vapour rather than steam?
Great experiment though! Thumbs up :)
2:12
C.R.S.
Nice voice
Hi,
With Narrator
Nice video but dude... wires do not absorb microwaves (you need special conditions for that)!! You see light from neon bulbs because high electric field is ionizing the neon gas mixture. Try the same with diodes, you will not see any light.
2 dislikes=2 neurons in your brains.
❤
0:55
a bit dry, but interesting nonetheless, you should film again maybe but turn off the lights in the room before you turn on the oven.
seeeeeeeeeeeeeeeeeeveeeeeen
1:17
NYAN bulbs
1813
that voice
Do not put lemons on microwave. It will burn your house down.
microuuuwaves :D
his accent is funny
What’s your problem dude
O RLY :O
9
The sound of the videos is not good
@ArizonaJedi Sigh.
That's my teacher
.
DEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEP and VOIhCY
خطييييييير naic
I'm eternally afraid of putting anything remotely adventurous in my microwave, so thank you for making and posting this video! Most definitely something I've always wondered about. ^__^
www el I’ll
Do not attempt.
Too late
0:59