Speed of Light, Microwave Oven and How It Works
Вставка
- Опубліковано 24 тра 2024
- Did you know you could measure the speed of light using your microwave oven? Then you might like to know how the oven works.
Read other articles at: www.electroboom.com/
Follow me on Facebook: / electroboom
It would be pretty awesome if you support ElectroBOOM at Patreon:
/ electroboom
Make sure to check SEEK thermal products here: www.thermal.com/
EngineerGuy’s video: • How a Microwave Oven W...
And special thanks to my sponsors and patrons:
www.electroboom.com/?page_id=727
Below are my Super Patrons with support to the extreme!
Aki K. at www.pc-doctor.com/
James Y. at vsee.com/
Christopher R.
By: Mehdi Sadaghdar - Наука та технологія
My 30 year old microwave has that spinning fan thing but I haven't seen that on any newer machines
Hydraulic Press Channel Hi:)
You tube can be a small place haha
Now crushing a microwave, that would be interesting. Running :D
same here, our old Miele ~28y has the rotation metal fan
Hydraulic Press Channel it must be crushed!
I guess engineers consider the spinning plate and the fan mutually exclusive, which kinda makes sense.
"It will make future generation smarter by natural selection." Yes.
Sometimes you need to be stupid at something to be good at another thing
Yeah.
yeah
Yeah
Yeah
"And this is a fan."
Thanks man.
I lolled
@@rasmussenrambles8576 same here.
same
it was like "... **GENERATING MUCH HEAT**... And this is a fan."
6:28 "...and this is a fan"
Yes, finally something I understand
My GE microwave from 2005 finally crapped out. At first ua-cam.com/users/postUgkxO_Bc204MGjxDl87cOKcdgaRhzSqGmv_g I was unsure because I was looking for something with the exact same features. Found it with this one. Interior space cavity was large, but the outside was smaller than my old one. I love the one-button push for 1-6 minutes, and the 30 second add or 30 second start. and MOST IMPORTANTLY, I love how you can adjust the power level during cooking. The reviews said it could not be done, but this marked all the other boxes. and happy to say, it does. I can hit 1 minute start, and change the power level from 10 to 5, 30 seconds in, without interruption. my favorite feature!
"on the bright side it makes the next generation smarter by natural selection" i'm done
Void Yeah 😂, science jokes are the best.
its not really a joke
He was the third Columbine shooter. You can't hide now!
I dont quite get it, anyone can explain for me?
Void bs
*5:07*
*Even when he isn't fixing / building stuff, he still manages to make stuff explode.*
And (5:13) bang his head.
Autistic Joy Emoji 5:08
lolmao new word I created
@@ParnesstheAmarX if u look closely u can see he did it knowingly
@@thehurtfulllama2659 can i start using it
0:18 how to get more words in an essay
63 likes and no comments? Let me fix that
That was some rocking white board animation. I like it.
NightHawkInLight your videos are shit
Thanks! I may go make one of your potato guns myself!
bruh all yall chill theyre both awesome
Fuck what's with all the hate with boomhawk
Valentin pls dont be mean :(
"On the bright side, it could help make the future generations smarter by natural selection"
XD XD laughed so hard!
SAME. I LOVE THIS GUY. (Been binge-watching for 3 hrs XD)
daniel2835 me too bro 😂😂
Reported video for being too SAVAGE and tru
Yeah like 6 videos per day, I don't know If they will run out, maybe they did..
Darwin awards
Fun fact: A Microwave oven in Dutch (my native language) is called a "Magnetron oven", named after the wave generating device.
here we call it mikrotalasna pecnica or mikrovalna
At least you don’t call it a Dutch Oven.
It's called magnetron in Dutch because it was the brand name from Philips for their microwave ovens. The brand name became the device's name.
Verry good. So everyone understand it
you see in my language it’s called microwave (Transliterated)
He measured the speed of light using electromagnetic standing waves.
Yep
The Equations WrMade Using Sped of light..
That Eqn is Final formula. Thou..
So works Eitherway
Turn on English subtitle at 4:07. Trust me !
OMG
hahaha WW1 machine fires dying of laughter
LOL! fantastic!
Lolll
WTF!?
"This is called a magnatron, it is a device built upon the dark arts of electronics" I love this guy. The further I get into electrical engineering, the more I understand just how brilliant he is.
Can you explain why he said that? I'm curious xD
@@Edw590 go look up how ones works
4:55 "unhealthy, concerning, probably going to blow up duuuuuuuu" w/ subtitles on 😂😂😂
That's why I use subtitles with electroboom 😂
Lol
4:52 I love how he patiently waits for an explanation
*explosion
( @ 5:17 ) Now I get it, why my patients scream so much during their surgery, I always feel like I'm forgetting something. I'll keep this in my mind.
Will LED lights up in microwave? The answer: Yes.
But not in the way you expect
I tried it I’m on the fbi list
But in a different way 😜😂
And a loooooot brighter
SUS
6:20 ... SHAKE THE POLAR MOLECULES GENERATING ***MUCH*** HEAT....!!!! (...and this is a fan....)
What a genius! 😂😂😂
6:14
6:13
6:12
6:23
Hey, it's been 4 years and I've finally recovered after looking into the wave guide. Thnx a bunch.
That box demonstration is the best!
Please be EXTRA careful if you take the magnetron apart, as you could get Berylliosis from the Beryllium stored inside that "stick" pointing out. This is not a joke, breathing in Beryllium dust is extremely toxic.
In most domestic microwave ovens, especially newer ones, Aluminium may be used instead of Beryllium though. This is not a guarantee and you should still be careful if you're not 100% sure whether your magnetron contains Aluminium or Beryllium.
Crazy Danish Hacker So it's safe to take appart a microwave but not the magnetron ?
+Llewln Not really, most (if not all) microwaves have a very powerful capacitor inside that could instantly kill you. Everything about microwaves are dangerous... That is, if you don't know what you're doing.
Crazy Danish Hacker beryllium is only in industrial microwaves
ShadowTech Uh, no it is not only in industrial microwaves, that purple band around the extrusion is beryllium oxide, and is a carcinogen to anyone who breathes it in.
I really love your videos, they are interesting to see how things work and funny In that you don't edit when bad stuff happens.
Top notch talking skills! Absolutely love every second of every word you say, really enjoyable, funny and useful!
Absolutely lost it at 8:19
9:00 your thermal image has a mustache...
This app is an ideal tool for making jokes out of your friends. Just say that your phone can detect hot and cold items and show them your hand in our app. They will believe you have a real thermographic device.
But he doesn't... 🤔🤔🤔
@Nissan Boi It turns out that you are the one who wooooshed, as I was wooooshing ironically
@@thegreatestshenfan933 cant proof that
@@tnd24632 We better take this to court.
Man... every school should have at least one of you -- kids would be far more engaged in learning about science.
BK not just school but engineering universities too!! I wonder how fun my engineering could have been if I had him as my teacher
This app is an ideal tool for making jokes out of your friends. Just say that your phone can detect hot and cold items and show them your hand in our app. They will believe you have a real thermographic device.
8:11
The stirrer is in older microwaves and was phased out because it never really worked that well. It was before they had a revolving plate, I know this because I recently got the chance to scrap some microwaves from the 70's or 80's (not sure what time period, but they had fake woodgrain so I'm pretty sure there were from those general era's).
One of my favorite channels on UA-cam. I like this guy a lot. If only there were more UA-cam channels that are popular more like this guy. Channels like king of random or whatever don't count.
If you'd like to know anything more about megatro-
*_TRANSFORMERSSSSSSS-_*
name?
i read that as that happened
Transformers + Magnetron = (Megatron) Deception Microwave 👍
"I dont really know what to do with the magnetron besides causing cancer"
Hahahahahahaaha
Jokes aside, microwaves are not ionizing so it doesn't really cause cancer. They may still cause burns though.
zirtapot57
Microwaves are built to contain radiation which makes the process safe. However, a magnetron on its own without safety features simply shoot out radiation like crazy.
Miles Edgeworth Isn’t its frequency of operation still below the ionizing level though? I don’t doubt that it would definitely cause microwave burns.
Miles Edgeworth - Microwaves are non-ionising no matter what - particle decay, far UV and X and Gamma rays only possess enough energy to cause ionisation within molecules. Microwaves are on the thermal side of the spectrum - don't really see how they could cause cancer through their radiation? Similar to how a kettle or a conventional oven cannot cause cancer if you get too close to the elements. Its less to do with the output voltage and more to do with the electron voltage.
Wikipedia actually has a fairly good article about Non-ionising radiation if you're interested.
I remember warming up a sausage roll on a small plate that had metal etching on it. It didn't register with my brain at the time that is until I switched the microwave on. It was the most impressive fireworks display I've ever seen...needless to say I didn't eat the sausage roll. I had a sandwich instead.😂
Excellent idea for a demonstration! I'd only seen it done as a plate of chocolate chips (melted spots are hot spots) like the Engineer Guy's cheese demo in the linked video. The box made a 3D visualization! Neat!
Man, this guy is so hairy he even has a thermostash!
LMAO
There's a mustache in the seek camera :P
my upper lip must have been cold
OH MY GOD! Your replied! Are you still watching the subs increase? :D
Try using the blade fan. :P
Nah, it is his mustache, i think these are his mustache hairs that are so short that you can't see them but they don't emit any heat so there's a mustache on the thermal camera.
Basically they are cold :3
8:19 That's true!
Congrats! 4millions subs, please do what you have promised, present to us your whole team who works on your videos!
This was great! Can you do a debunking/explanation of cellphones causing cancer please? Just like you did for the free energy video
MultiSciGeek; The problem with that is that cellphones CAN actually cause cancer (look up the DNA unzipping mechanism), however, non-ionising radiation is VERY inefficient at it (just compare the sterilization effectiveness of 256nm UV light vs. microwaves of equal power).
This does, however, NOT mean that micro/radio waves are completely harmless though. Your cornea is actually very good at absorbing microwaves and doesn't get enough blood flow to effectively cool itself. Having enough radio/micro wave energy fall on your eye to raise its internal temperature by merely 5°C is enough to denature its protective proteins and cause a cascade eventually leading to cateracts.
The other really scary part is neural excitotoxicity induced by unregulated Ca(2+) influx from the constant stimulation by the high electric and magnetic field (which can also be used for good by removing the electric field component and only sending a magnetic pulse through the skull, as in TMS therapy).
THIS!
MRLT Right. Thanks for explaining this. This is exactly why I wanted him to make a video on this topic. First figure out if it is true, if yes how dangerous it is and how it work.
MultiSciGeek; You're very welcome :)
I completely agree, in today's society where EVERYTHING is "known to the State of Calofornia to cause cancer and birth defects", I believe it is increadibly important for someone to explain what things are actually dangerous and how to safely handle them (like how he showed that getting electrocuted in water is actually pretty difficult with normal household AC power).
MRLT Yeah exactly. And not just cancer, but there a lot of science myths and misconceptions and fake news and conspiracy theories are making this even worse these days. Cheers :D
The natural selection part killed me ..... SO TRUE !
8:12
If it killed you would that be natural selection
Man you don't fear electricity. You're a true engineer. ❤️ You're my inspiration
Newly discovered, subscribed and upvoted for the G1 Megatron reference!
6:28 And this is a fan
Glad I'm not the only one who thought that was funny!
I lost it there :DD
@@josugambee3701 wow i never knew
when you overhype introducing the parts and then the fan.. just a fan 😂
2:29 I just love how he says: "Wow look at this!"
Before 1 Mil: I can't decide how to celebrate
After 1 Mil: Did you heard the tragedy of Darth Mehdi the Wise?
Another way to fix the hot and cold spots is to make sure the plate is in the corner of the rotating part so there is no stationary part that has no way of getting affected by the waves.
5:10 Always make sure your capacitors, especially massive ones in microwave ovens are discharged. Also, keep the short circuit on them for a while too.
hook up enough lemons to jump start a car
shadowq8 I agree
shadowq8 #answer question now boom man!!!
shadowq8 Not if you have a combustable one...
Tell me if you get the reference
shadowq8 ppl
William Osman made a 1,232 lemon battery to power a homemade lemon juicer
Little did he know that transformer would become such an important tool for making videos in the future
And the one that almost killed him
I am a big fan. Mehdi, Love your work
One of my favourite things to salvage from an old microwave is the turntable motor. It works great as a hand crank generator and can generate up to 230 volts depending on how fast you crank it.
Do I want a Huge wave or a Micro wave?
radical waves, dude!
smaller waves = better ^^
Longer wavelength is better ( ͡° ͜ʖ ͡°)
Infomaniac macrowave
Smaller waves (~400nm and under)= cancer due to ionization breaking DNA strands.
Larger waves = Causes cataracts, but carries low power and very low resolution per photon. Oh and also could possibly cause cancer due to DNA unzipping mechanisms...
5:08 almost got a hart attack
SERIOUSLY my breath ran out for a couple of seconds
I love the guy, hope he keeps the video's coming.
You forgot the HIGH VOLTAGE capacitor in there......... I hate you for not discharging it using your eyeballs or something lol
I think it is broken. I'll buy a new one and satisfy your needs!
Your eyeball or the capacitor?
He didn't show how to discharge the capacitor, the single most likely cause of death or injury from a microwaves. That loud hum means the magnetron, capacitor or diode is bad. Most likely the magnetron.
And a second motor that spins the plate
Those capacitors have bleeding resistors. I tried to make a bug zapper with a microwave capacitor and it didn't worked because the bleeding resistor discharged it from 2000 volts to 0 in a matter of seconds.
Still, it is better to check just in case.
Btw, could you make a power supply out of a microwaver transformer? I think it would be a cool project.
I knew that you were gonna make a vid about microwawes when I stalked your liked vids list
Özgün Kara aynen lan önerim afrotechmods u ve great scott u da takip edin
8:04 - Welp. I'm pausing right here to go look directly into the Wave Guide before continuing watching the video. It sounds exciting!
That pen part amazed me. I legit figured it rubbed the ink off
how is this guy still alive? XD
He knows his limits very well.
Because he knows how to conduct himself.
Those sparks were just a trick!
I think its just some after effects you can touch higher voltages fairly safely if you really know what you are doing and provide a alternative path other than through your main organs but all the sparks etc will be added is post production editing and he wont be touching anything live
because he's immune to electricity
hahaha, love it Mehdi, you are the best instructor and comedian. There's more to salvage on Microwave Ovens, there's the microswitches, the mains filter at the back on the top, see at 6:43, some relays on the main board. The fan blades can be used to stir water, even be used in a small dinghy with a powerful enough motor to drive the dinghy and can be used to provide air-flow at your soldering bench, if you are careful about wiring it up and protecting yourself from the mains (115 VAC or 230 VAC).
I'm hoping for the thermal camera, unfortunately, I've just noticed that the video was 2 years ago ahaha. Hey bro I'm always amazed and learned from every video you've downloaded, keep the electrifying job you're so funny and smart at the same time. New subscriber here
OK.... i think you would be an excellent professor, the students would listen to you and learn while having fun ... many should learn from you.
5:02 - Hm, I hope you discharged the caps (or they have safety).
5:08 - Nevermind.
xD
True
This app is an ideal tool for making jokes out of your friends. Just say that your phone can detect hot and cold items and show them your hand in our app. They will believe you have a real thermographic device.
@@Bakus74 Its an app, yes... However, its not a joke app. You NEED a Seek Thermal camera for your phone or the app will show nothing but a black screen and throw you an error.
The Seek Thermal camera's (tho ridiculously overpriced for what they are) are legit "real thermographic device"'s.
5:30 "Megatron. TRANSFORMEEEEEEEEEEEERS!!" xDDDDDD I fucking love this guy.
Your video gives me inspiration: Can I use a microwave for dirty soldering, even without Lötzinn (LANG=DE, tin-lead solder)? Melting the metal.
EVERY video from this guy is great!!
You sir are hilarious. Never thought electronics could be so funny. That Natural selection joke was amazing.
This app is an ideal tool for making jokes out of your friends. Just say that your phone can detect hot and cold items and show them your hand in our app. They will believe you have a real thermographic device.
Started watching these at work and had to turn on captions... and I must say bravo to that, ElectroBOOM even making the captions hilarious!! 4:50 "Unhealthy, concerning, probably going to blow up duuuuuuuuu" XD that sick microwave!!
6:10 from now on I'll pronunce the "transformer" word like this, even in front of other people
Hi boom i already in patreot to support your video. And im very glad everytime i watch your videos hahahah. Same feelings as here repairing and making everything that makes my feeling happy with electrics.
Suggestion: Make a huge Tesla coil, wear a Faraday-cage-like suit and get shocked.
That was the first idea that popped into my head. He totally has to do it! In that case, though, I would hope he would go somewhere that already has that set up, or he's bound to end up accidentally electrocuting himself.
knowing him, he would probably forget the faraday cage suit xD
VelvetCake More likely he would forget to hook it up to ground
Don't wear a suit just use a normal big cage of some kind.
9:23 i searched for gold yet i found a gem!
Gimme da metta wait im 4 years to late
Man I'm 6 year s to late
wtf
I don’t know how I found out about you just now 😂 where were you when I needed you for my Physics Exam last year
At 6:28 that would've been me... "This is a fan" 😂😂😂
"And this is a fan."
My god it's such a joy watching these videos.
Yes he has such a great humor! :-D
In my childhood home we had that spinning thing in the microwave and it did not have a rotating plate. It was great: the entire floor area was available and did not have to worry about the item not having enough clearance around to allow for free rotation. Shame they are so rare.
Another amazing and interesting video...
can you explain and make a circuit that can capture purely Back emf sparks? and save them the voltages stationary with maybe with an condensator, or shot back into an battery?
Thanks for this really cool pseudo-3d visualisation of the heating pattern in a microwave! I'm a high school physics teacher and I was enthusiastic about doing the experiment to estimate the speed of light using a microwave and chocolate...until I discovered that it (usually) doesn't work. In fact, out of four microwave ovens I tried, I couldn't honestly say I got anything remotely resembling a regular "standing wave" pattern in the chocolate. Then I got my hands on a thermal camera like yours, and I heated up sheets of paper (instead of chocolate) and different heights in the oven (naturally without the rotation plate) and looked at the patterns. First - as you saw yourself in the video - the patterns are not exactly regular. Mine were usually even less pretty than the one you show in this video - and they changed a lot at different heights in the oven. I got suspicious of these experiments and found a paper that agrees: iopscience.iop.org/article/10.1088/0031-9120/49/4/419. They write about the c = lambda*freq method in the case of the microwave pattern: "But this is not correct. The distribution of an electric field in a 3D cavity is rather complicated and the idea of wave resonance in a one dimensional string simply cannot be applied to this case. (...)even in this very simplified case there is no observable distance between spots that are equal to 6 cm as it is predicted from the simple one dimensional model. So this method can provide only a very rough estimation of the speed of light." And that was my experience too. In the end, it seems more like a matter of luck whether or not spots that are about 6cm apart or not (I would say I even had trouble finding a single such pair!). I did this experiment in class using the pieces of paper, kind of like you did but in 2d - but made a point of explaining that the well-liked chocolate experiment couldn't reliably work, and people simply tended to see what they wanted to see. It reminded me of the episode where Lowell thought he saw an intricate canal network on the surface of Mars through his telescope! You also seem to find spots that are around 6 cm apart, and I'm just wondering about the casual comment you dropped about "looking for the spots that are closest together". Do you feel sure about that claim? After seeing the random patterns I saw myself using a thermal camera, I suspect it's impossible to know what the hot-spot separation will be, unless an exact simulation of the freq, waveguide, oven dimensions etc. is made in advance. Thoughts?
Which school do you teach physics at? Asking for a friend who is planning to send his children there...
This guys vids are entertaining and informative with the right amount of comedy
Heavy noise is usually due to a bad diode that is connected to the high voltage capacitor. It can be fun to repair these ovens, but be sure to safely discharge the capacitor first. My stainless steel oven is now 18 years old and still looks as good as new. I have repaired it a few times, but I got the parts from someone else's oven that they had tossed out for disposal. The turntable motor stopped, but a few drops of glue fixed that problem. Thanks to simple repairs that cost basically nothing, my air conditioner is now 19 1/2 years old, my coffee maker is now 16 years old, my SAMSUNG TV is now 12 years old, my big floor fan is about 22 years old, my SHWINN 6700p Treadmill in now 23 years old, and so on, but they are all working as good as new.
why does wifi have to be on the 2.4 Ghz band? WHY?
StarTrek123456 that's why newer microwaves have been moved to 2.47 and no longer cause interference with wifi
StarTrek123456 I used to tell my grandparents, they never listened
wifi routers have had a 5ghz band for like 8 years, for this reason.. Also why they changed cordless phones from 2.4 to 5.8, and other digital frequencies
Well, the 2.4 GHz band was made publicly available for everyone because of microwaves, so... I think that the guys at IEEE didn't think it would be a problem and just made it standard because you need no license for it. Back then, the devices probably weren't capable of handling 5 GHz, but they didn't wanna go any lower than the 2.4 GHz
BeatRush2011 This was a better explanation than the other guys Autistic Screeching.
The stirrer is ONLY in ovens that do not have a rotating carousel plate. The rotating carousel design eliminated the need to the stirrer in smaller ovens. larger and commercial oven will have a stirrer and no rotating plates.
For the magnetron tube to turn on you need more than just the 2Kv, you need an HV capacitor andan Hv diode. These will bring the voltage up and raise the amperage to the magnetron tube reaches resonance and start working. Also you need 6 volts for the cathode heater in the tube. This is the third winding on the MOT.
Also a warning, The magnetron is made of beryllium ceramic and is VERY toxic so handle with care and do not break it.
I was thinking the same that rotating carousel plate eliminated the need of stirrer.
But am also wondering how is the plate better option as compared to stirrer. One thing I could think about is energy requirement which I believe stirrer uses less. Maybe material used for making the stirrer is expensive or difficult to make.
What do you think?
@@tachyon1132 ElectroBBOOM should have pulled the HV diode out of the microwave.
"This transformer is my new pride and joy" hahaha
5:05 "You can see that the AC line enters from that corner, and feeds it-*POP*-YOOOW!!" 😂
In my experiential physics classes in uni, we have talked about a lot of ways to calculate the speed of light, but only a crazy genius would do it using a microwave like that.
I love how he says so many complicated things, and then just points out the fan 😂!!
I want my free thermal camera! great video, I like you're stuff.
Do a face reveal at 1 million subscribers
ItsTimeTo STOP Eyebrows reveal
I am the Lizard People
Do you respond to comments often?
Lizard People are meat puppets of the AI.
So you had a good mask when you did the on stage AC vs DC bit a few years back?
There is nothing better than laughing while learning. Well, maybe one thing.
Thanks Electroboom. You're awsome!
Your Channel Is like a mix of the 8 bit guy and the AVGN, it's Just PERFECTION
Whenever I'm doing repairs or working on something electronic I have this guy playing in the background to get me in the mood to work
98 people paused the video at 08:04 and went to their kitchen to look inside the microwave if there is any metal blade rotating and got themselves fried up in the process!
why
Mehdi, calculate the golden ratio, using a very long series-parallel circuit of same-valued resistors! :D
You make boring things funny I love what you do I wish I was that good at something
Love your videos!
That thermal camera gives you a moustache!
This app is an ideal tool for making jokes out of your friends. Just say that your phone can detect hot and cold items and show them your hand in our app. They will believe you have a real thermographic device.
1M subs - shave your eyebrows with a magnetron
MrMetalord or shave these eyebrows in the microwave
or shave them in general
*TRANSFORMERS*
Maggot ron
MrMetalord causing “eyebrow cancer “btw?lol
you really make learning fun and interesting,,,,,thank you
“You need to know how microwaves work.”
*Hits the camera with the microwave door*
OUCH.
Shit
TRANSFORMERRRRRSSSSSS
What about them?
* queue 80's metal theme *
Microwave transformers Ha im so funny amirite
*DUN DUN DUN*:v
What's the name of the song