Understanding how we use electromagnetic waves to transmit information. License: Creative Commons BY-NC-SA More information at k12videos.mit.edu/terms-condit...
Пікірлер: 292
@longfordboy25384 жыл бұрын
This is absolutely brilliant. I am a very senior citizen trying to learn subjects that I was supposed to learn many years ago. I thought it was Impossible until now. Thank you, thank you, thank you
@connerreimers6506 Жыл бұрын
yea my man I'm 24 if I can do it why couldn't you
@wallyaudio7 жыл бұрын
Amazing how you clarified hundreds of book pages in less than 8 minutes. You are my hero!
@John-lf3xf5 жыл бұрын
wallyaudio your right you can only understand this if you already know this
@ajcook77775 жыл бұрын
1:26 the density of air does not change...does the density of water change as a wave travels through it?! Absolutely not.
@harikishore25145 жыл бұрын
@@ajcook7777 looks like you have shallow knowledge on this subject..
@MrTonyd19544 жыл бұрын
Hari Kishore This is a great explanation for people with limited science background. This video is not directed towards his staff at MIT
@ervivekchoubey4 жыл бұрын
Agreed. Thanks to EEE
@BrettGolfs6 жыл бұрын
Crazy how we take things like this for granted. So cool learning this stuff. Amazing video.
@ob1keno2274 жыл бұрын
Agree, this is basically witchcraft 😂
@lainet48494 жыл бұрын
Once you understand how it works, the really amazing thing is the speed at which it works.
@nikyabodigital4 жыл бұрын
GolfSauce This is revolutionary it's almost an experiment when figuring this out because you can't visually see a wave , this is pure genius
@mrnarason4 жыл бұрын
@@ob1keno227 The more witchcraft-y thing is that it is not witchcraft at all. We understand it very well, through hundreds of years of progress of science, technology, engineering and math. Take some physics classes and it won't be "witchcraft" anymore.
@sergouszz53883 жыл бұрын
Yea, this is not our tecnology. Aliens are sharing this to us as time gets by. People don't see the impossible jump from one technology to another. Only know to say "ThERe ArE GeNiUsEs".
@godsdebris15312 жыл бұрын
Yes! The carrier frequency for Wi-Fi is about 2.4 GHz, which is the same frequency as the radiation emitted by most microwaves. This is why microwaves can interfere with Wi-Fi signals. We used a Wacom tablet and the SmoothDraw software to make the video.
@GameCreatorOfGod5 жыл бұрын
Don't forget to say that when receiving the waves of FM the device that receives them decodes the waves from a already written library of numbers for each wave. So this is why its so fast, each wave is already programmed to read FM .This is why AM radio is not as good as FM As am does not decode it just reads the waves as a high or low pitch wave. The reason this is so important is people still don't understand how it works as a whole. So each radio depending on who created it, works with a already written program to decode each wave as a one or zero. If you only have a AM radio it does not have any prerecorded information in it so it just picks up the waves and send them to your speaker. We use to call it a echo machine as it would just echo wave sounds into your speaker. But FM will read the waves like zeros and ones depending on the burst of frequency of each wave. If its one short blast or wave, then its a one. if there is a relaxed wave its a zero. The higher the range for the wave, the higher the pitch, the lower the wave or the more relaxed the burst, the lower the pitch.
@Rafa-yw8nu4 жыл бұрын
So that's why FM is called digital (in terms of transmitting 0 and 1) in this video?
@GameCreatorOfGod4 жыл бұрын
@@Rafa-yw8nu Yes because it is digital.
@MrBeen9924 жыл бұрын
So FM radio was always digital since the 1930s it was invented ? ? ?
@GameCreatorOfGod4 жыл бұрын
@@MrBeen992 yes and no, over the years it's advanced to be what it is. Like with WiFi. But yes, you are right. But the wave was recorded and received different.
@MrBeen9924 жыл бұрын
@@GameCreatorOfGod OK, but this video doesnt explain how FM transmited information before the digital age
@anonymousgeek37603 жыл бұрын
All these years of using a smartphone and today is the first time I have stumbled upon how they work. The explanation is so on point that there is nothing to discard.
@zezo9285 жыл бұрын
I am in love with how you teach and simplify all of the problems the most of the student face your genius well done I hope all the teacher and professors out there learn from you
@jajuanrussell53865 жыл бұрын
I've been trying to answer this question for years. You answered it simply and made perfect sense. Thank you
@antoinieeugene3 жыл бұрын
I’m still confused as to how a computer translates these numbers
@AS-nx9fu2 жыл бұрын
@@antoinieeugene they convert these waves into electrical signals using a transducer and from there, signal processing takes place
@RyanDaniels477 жыл бұрын
Wow. This video looks simple, but did an AMAZING job explaining it.
@jonathanwkelly7 жыл бұрын
you're a gifted teacher
@Sky-pg6xy4 жыл бұрын
“Ear does some complicated process to transcribe those into sound” Ear: bitch this shit aint complicated
@syedhussain61835 жыл бұрын
I have been trying to understand it from 3 hours and you just did it in less then 8 mins !!! I mean wow!! ❤️
@weipao62085 жыл бұрын
That's really helpful!It took me less than ten minutes to understand the basic of wireless communication.
@sarahlovesfootie3 жыл бұрын
I’ve just learned about electro waves in 8mins then 5 years in school. Thank goddess To people like you and technology!
@xxChacaronXX3 жыл бұрын
Perfectly explained! Great curser writing too!
@kamilalzught24904 жыл бұрын
I only studied business and managed to understand your explanation so easily! You're awesome!!!
@sarahs53407 жыл бұрын
Videos like this make me love KZbin so much! Xoxo
@6616Milan5 жыл бұрын
Thank u bro. I like the start by saying you saw waves caused in a lake all that stuff.
@abod4gamer5 жыл бұрын
If you want to find the key to the universe think in terms of energy , Frequency and vibration - Nikola Tesla 1856 - 1943
@captainaffection5 жыл бұрын
I'll wait for someone to make a video about that one too
@markeezbaroon20334 жыл бұрын
@@captainaffection hahahahaha
@rajendrachand7703 жыл бұрын
Heat and magnetic field also i think
@commie2813 жыл бұрын
This is pretty true, but then people take those terms and make up fantastical ways to apply them to humans.
@nataliee55013 жыл бұрын
We are radios. All life is sound phonons vibration measurement at speed of light hz, watts...... Atomic, biolectric.
@QRigal Жыл бұрын
You are a genius, the way how you simplified the explanation is great! Thank you.
@SIMS64 жыл бұрын
Thank you so much for this video! Much love and peace!
@richardkush44506 ай бұрын
What a super video, it was a thing i was wondering about for a long time how that works, thanks for simplifying so intresting !
@scalvii2 жыл бұрын
Amazing explanation. It's all clear now. Thank you!
@shaileshchotoe6 жыл бұрын
wow of al the videos i searched this is the one i needed!!
@nathanielokogie22682 жыл бұрын
Man I've read so much articles on this, and this short 7+ mins video drives the point home better than all those articles. Thanks, now the search ends here.
@wiseup7312 жыл бұрын
Any idea what this type of study would be called for a college course/degree?
@Julius-fd2sd3 жыл бұрын
WONDERFUL PRACTICAL PRESENTATION!!! THANK YOU !!!
@zyehia8 жыл бұрын
so easy to understand! Thanks so much!
@nicolaromanini513811 жыл бұрын
hi i'm italian and i'm using your video to learning english and electricity :D THANKS
@Krishna-zh3pw3 жыл бұрын
It was a super fantastic explanation. I knew about the waves and that information in bits. But I was missing the link between them.
@rainrox67395 жыл бұрын
Short and sweet but powerful!!
@mer10n3 жыл бұрын
This guy just cleared my concept which was giving me stress. Thnks bro
@tcjusttc54186 жыл бұрын
great tutorial... thanks for the simplification
@houseofkamuha2490 Жыл бұрын
Computer only understand 1 and 0... While youre sending high and low frequency the receiver will demodulate the signal and depending to it's corresponding combination of 1s and 0s the original information will be retrieved . I love how you made the example from analog to digital signal. Thank you 🙏
@siddharthshekhawat55022 жыл бұрын
This the way to teach ,,which majority of lacking...thanks 👍 bro love from INDIA
@amank.11476 жыл бұрын
thanks for this video i understood perfectly
@farhodghaniev76462 жыл бұрын
The best explanation!
@prasadpusalkar1232 жыл бұрын
Awesome video. Easily understood the concepts.
@ramseypietronasser5 жыл бұрын
Very well explained. Thank you
@jalonkemp29143 ай бұрын
Awesome video!
@sbee49477 жыл бұрын
Great tutorial!
@nadadenada3197 жыл бұрын
thanks! i finally found what i looking for
@DimanjanDahal8 жыл бұрын
absolutely great!
@wendyjomendy11 ай бұрын
Off topic-> you're an artistic person your handwriting and wave drawing is so clean to look at
@jluiz2011 жыл бұрын
Great video!
@SaiTeja-zd3iw4 жыл бұрын
world needs more heroes like you
@zacharybrown78693 жыл бұрын
That was great! Thanks
@pixxelwizzard3 жыл бұрын
Loved this video. Leaves me wondering how FM radio works, though. How are complex sounds transmitted via analog?
@andreewww1437 жыл бұрын
Very helpful thanks!
@karanvedi67792 жыл бұрын
So good response to query ...🙏🙏thanks 👍👍
@sameertomar50995 жыл бұрын
Really help ful im sending this by frequency modulation
@arabindakumarpal30635 жыл бұрын
AWESOME VIDEO SIR........
@hi150919925 жыл бұрын
the video is very informative. thank you
@AndreasZimmerman4 жыл бұрын
Thank you. So clear.
@133faceman7 жыл бұрын
This was really helpful
@RobbieBlue3 жыл бұрын
Great job, bro
@stephendean28964 жыл бұрын
Plus visible light, nice job on the video Thanks for sharing
@ryntils68914 жыл бұрын
Thank you for this information.
@Silentwitness19785 жыл бұрын
This was unreal. Thankyou
@robwebb64616 жыл бұрын
Great video.
@fatviv21944 жыл бұрын
Big help thank you !
@jm08a316 жыл бұрын
What software was used for this?
@mindbeforematter-3 жыл бұрын
Very good, thank you x
@Mike_15Slam2 жыл бұрын
thanks so much bro. great work keep it up
@ComeCloserDarling4 жыл бұрын
Dude, you deserve a Nobel, in my opinion
@MrCooldude41726 жыл бұрын
So the FM wave is also transported by a carrier wave? In that case, does a higher frequency carrier wave imply larger data transfer rates?
@rabbitpiet71826 жыл бұрын
cooldude 4172 yup
@hawaiianbudd3 жыл бұрын
Thank you. My brain is satisfied with the answers you have given in this video. I can go to sleep now.
@Daniel_CLopes7 жыл бұрын
Nice video, Mr...
@guruvers Жыл бұрын
Heartfelt thanks
@adventure-0076 жыл бұрын
Hey, awesome video. What software you're using for the writing part?
@kumarkakumanu1848 Жыл бұрын
Beautiful explanation
@HamzaIqbalPro8 жыл бұрын
Great information...
@alfatourist11 жыл бұрын
Carrier waves are interacted with signal waves coming from some radio station to change the amplitude, right? Is this done when we change to different AM stations on the radio? What are carrier waves? What exactly do you do to achieve this? Could you please make it clearer? Thanks!
@stewartwhitebeta14927 жыл бұрын
great explanation
@deepamgupta80114 жыл бұрын
Well Explained Buddy
@umargul56442 жыл бұрын
Great job sir thanks
@edgaryairherreraayon87172 жыл бұрын
THIS IS SO INSANE MY MIND HAS BLOWN!!!!
@johansmit47986 жыл бұрын
Thanks. This vidio is very helpful. I
@amitoj73235 жыл бұрын
To the point answer, i liked it
@srinivasancheenu19084 жыл бұрын
Well explained...
@iyhuyu73 жыл бұрын
Thank you!
@Felipe07915 жыл бұрын
Just another comment to say you are awesome. You are awesome
@VecdiTamer Жыл бұрын
THANK YOU!!!
@keanufabiana72896 жыл бұрын
How would I go about making a transmitter and a receiver that use bluetooth to communicate?
@MaverickCF6 жыл бұрын
Really amazing ty
@prabhakarv419319 күн бұрын
Very nice and informative
@queenvickyv5 жыл бұрын
Great film - can I ask how you made this - which program/software?
@mharinathreddy82624 жыл бұрын
Hello, Could you please let me know the modulation scheme to be used for the following requirement "The system must convey telephone quality voice, photographs and 2-way 1kbit/s data: Carrier frequency should be 1 GHz Thank You
@jayasri-ft80403 жыл бұрын
Excellent sir
@liamcashmore31274 жыл бұрын
How many Hertz are the waves modulated by in fm? Also, is this how WiFi routers transmit data in homes and such? It seems like not a lot of data can be transmitted if it’s like Morse code. And can radio waves on specific frequencies be time delayed to create digits? If so, is that better than actually changing the frequency? So many questions.
@ernieodiorne33374 жыл бұрын
Hello, Great video! What did you use to make the drawings on the screen?
@tekiero3 жыл бұрын
opened my eyes
@MrSupermonkeyman348 жыл бұрын
I have a question. If some radio stations transmit information via frequency modulation and others transmit information via amplitude modulation. How do radio's that pick up these waves distinguish between different radio stations
@emilcarr71908 жыл бұрын
there is usually a little switch on the radio that the user flicks then tunes in
@knowledgecenter28063 жыл бұрын
Hungry for more!! How can you create these waves? How can you change the frequency? Can you combine AM and FM to send more information in less time?
@bishop3392 жыл бұрын
Thank you 🙏🏿
@banajadandasena41425 жыл бұрын
But I need a complete video about the this. How information are travel through waves? How mobile or any device receive it?
@haythemtilouch11914 жыл бұрын
Plz Let me know if you had your questions answered
@rainbowwine54102 жыл бұрын
i wanna see how the people reacted when Radio was introduced. it is the greatest innovation of all time.
@singularity3336 жыл бұрын
My question is how a specific tone sound voice or color is transmitted.
@bertaga413 жыл бұрын
Thanks for this but i still dont understand how the sound wave is attached to the carrier wave. Please put me right on this. A sound wave enters a microphone and the vibrations are converted to EM waves. These EM waves by means of modulation are loaded onto carrier waves(but how?)and the carrier waves are sent out to be picked up by antennae and the process is reversed so you hear sound at the receiving end. I am nearly correct?
@hieugiaosu5 жыл бұрын
amazing, finally i understand how light can carry information, thank you so much
@masbro19014 жыл бұрын
how light can carry information?
@markarthur10832 жыл бұрын
With the case of AM you said the receiving device has to listen out for a specific frequency. What does the receiving device have to listen out for in the case of FM?