For those saying Wi-Fi stands for Wireless Fidelity, it actually doesn't. That's a massive misconception. A quote from Phil Belanger, a founding member of the Wi-Fi Alliance who presided over the selection of the name "Wi-Fi" : "Wi-Fi doesn't stand for anything. It is not an acronym. There is no meaning." Just wanted to clear that up. Anyway, hope you enjoy the video!
Wi-Fi has no actual meaning. Wi-Fi was never shorter version of Wireless Fidelity. Wi-Fi Alliance used the advertising slogan "The Standard for Wireless Fidelity" for a short time after the brand name was created. In other countries Wi-Fi is called differently. For example in Germany we call it WLAN which means Wireless Local Area Network. So Wlan probably makes a bit more sense but i personally still like Wi-Fi sound better.
@@jorceshaman last decent standard that doesnt burn the top layer of your skin was 802.11ac. Enjoy your AX and sweat gland damage my friend... Each to his own...
I always wondered how underrated this channel is. I've never been so excited for a youtube channel to release a video as much as this channel. I also listened to his book on Audible "New Thinking: from Einstein to SpaceX" and it instantly became my fav book! I also recommended the book and channel to my boss and colleagues at work. Well done Dagogo!
Dagogo, I'm a Chartered Accountant who has been in business for more than 3 years and you have inspired me to start my own channel where I discuss business strategies, history, fintech and a whole lot more. I just wanted to say thank you and I pray that one day, I can be as big as you. I'm speaking it into existence and in 6 months, I will come back to this comment to update you.
The dutch created wifi. Vic Hayes the father of wifi created the IEEE 802.11 Protocol in 1997 in Nieuwegein the netherlands. It was called Waveland back then. Used in cash registers radios and things like that. He chaired the IEEE Developing group. Australia just made a chip to make the Wi-Fi signal stronger. Without the 802.11 protocol they couldnt have done it.
Some funnier WIFI names I've seen: "Mattu kerjab netti" (in english: Mattu begs for the internet), "Good news everyone, Futurama suc" and "Nokia 3310".
Just for completeness' sake, any history of wireless communication (WiFi, Bluetooth, etc.) should really start with Hedy Lamarr. Without her insight, none of them would have made it to where they are today. Sadly, it took around 70 years before her contribution was officially recognised.
MsSaudm Just go onto WikiLeaks and you can find out how corrupt your government is. The US wanted to get rid of the founder of WikiLeaks because he was exposing them. They’ve tried everything to get WikiLeaks shut down.
I've seen 4-5 videos and already a fan, i don't normally find Australian accent very pleasant or cool but somehow I find this accent and channel very satisfying. Keep up the good work fam. The background music, intro the voiceover everything is so satisfying. ❤
Wow. Every time I think about things like all the different types of frequencies and waves constantly active around us, it blows my mind. The music is perfectly suitable as always. Thank you, Dagogo.
"What's the point of this kind of research?" -- I don't know why there is the feeling of a need to convince people of a "point"... it's a lot easier to explain to people that just because something doesn't interest them, it does interest other people, and those are the people who do the research, because they want to. It's good that we want to do different things, if some guy wants to try and detect small black holes, why would you want to stop him, or why convince other people that he's doing it for some other reason than that he wants to?
Just to clarify on the Wi-Fi =?= Wireless Fidelity. The origin of the name is quite obvious. As mentioned by @annoloki in a nested comment to this video: "It might not STAND for "wireless fidelity", but the reason it caught on was because "hi-fi" was already in common use... the "wi" IS from "wireless", and the "fi" IS from "fidelity", but the only thing it MEANS is to be catchy, to feel like it is a next step in a process that people already knew of as delivering cleaner, better sounding music etc. The history of a term does not have to equal the intent of a term."
Heard an anecdote from a co-worker who used to work at the CSIRO, apparently the signals were bending around stars and they'd receive two signals slightly offset from each other with interference, apparently the tech they built to pull those signals apart and get extra info out of them was the basis for their WiFi setup, as WiFi also suffers from it with signals bouncing around the room
One of the very few channels that actually keep my attention for longer than three minutes, you pull off another great video. Thanks, and looking forward to seeing more!
Part of my annoyance is that CSIRO had to battle for royalty payments in the first place. Honestly, US corporations are nothing but a pack of arseholes. None of them considered what CSIRO achieved deserving of recognition, too arrogant to consider that an Australian company, in fact a branch of the Australian Government was able to develop something of use that they were deserving of royalties, they just ploughed on as if they had nothing to worry about. Sadly, if this was an Australian start up rather than part of the Australian Government fighting the case, the company would have been driven into the ground by the US court system.
I think TH-cam blacklisted your channel after how money is created. Your videos don't come up as a notification or in my home page at all even though I got all notifications on. Hope your channel gets back to normal soon. Your one of the best channels on TH-cam.
The CSIRO also work in the area of forensic science for developing technologies that can be used to aid in criminal investigations and they also had a special guest presentation at my school about their forensic science department back in 2013 when I was still in primary school! :)
Best explanation of electromagnetic waves in layman's terms I've seen. Will share with my family. Video was great and very interesting as always Dagogo.
How many people know that an Australian developed Bitcoin and that this Australian's grandfather was a cipher expert who was involved in the "code" breaking of the Japanese during the Coral Sea battle.
This is by far one of the best channels on TH-cam! We always want to be better. In the states we pronounce IEEE as "I Triple E". Keep up the amazing work! You're the only channel I get excited about notifications from! I don't even skip the ads just so you can get more revenue. My way of paying it forward!
Brilliant! Thank you for mentioning the benefits of science for science sake. You never now where it will take you. Well done! I remember a 5 second mention on the news when WiFi was developed by CSIRO to replace all the cables behind the TV and VCR...talk about under estimated...
Just found your channel recently and I’ve been binging it for the past week. Incredible content, can’t believe it took me this long! Thanks for all your hard work Dagogo!
Nicely done. The reflection issues you refer to are not entirely solved, or even mostly solved, by signal processing techniques but it helps a lot. The other common technique is antenna diversity which most modern WiFi devices employ. Basically you have two antennas with some separation and different orientation between them and the WiFi hardware is constantly choosing the antenna with the better signal. With wavelengths so small even a few centimeters can make a big difference. We take WiFi and cellular data for granted these days but it’s amazing it works as well as it does. I’m also not normally a big fan of the US patent system but this at least an example of rightful patent holders being compensated.
Jagdish Chandra Bose is known as the father of wireless telecommunication. He had invented the Mercury Coherer, a radio wave receiver that was used by Guglielmo Marconi to build an operational two-way radio. The science behind capturing radio waves was first demonstrated by Bose.
thanks Dagogo, another well-researched & professionally-presented educational video of the absolute highest quality & production values. I'm a newish subscriber but from what i've seen so far, i'm beginning to expect nothing less from Cold Fusion TV's fascinating channel content. cheers man, and have a good one too :-)
Would really love to see a video on all the tech advancements that came out of space exploration. A lot of short sighted people think that space exploration is futile. Need to have one video for them to refer.
Something complicated very well explained in layman’s terms! I watch a lot of TH-cam videos on astrophysics and astronomy. This gives me a better understanding on some concepts I had a hard time grasping. Thank you!
My parents laughed at a guy doing his doctorate in how jelly sets... which became the LCD screen (another Ozzie invention). Your point at the end is spot on, we don't do science to make money but achieve can be used to make a lot of money.
Your cross referencing and Researching is top class... , and personally , Though different in content, Its very thorough, id equate your non biased approach to Jim from Adored TV...widely regarded as one of the best in the Computer / Tech industry. Yep... Research is an art. I Tip my Hat Good Sir. Funny thing is, Like the Ozzy Wifi happy accident, Same sort of thing happened with Fairlight ,,,
Could you talk about JC Bose? A forgotten inventor who is said to have been a pioneer of Radio waves communication? Its not very well known but the guy's work led to the invention of Radio Waves and later Wifi
When I was a kid (10 or so) my dad was in a band with a trumpet player who eventually developed the Trumpet Winsock ... a vital part of connecting to the Internet using a modem and Windows in the 90's. He was a dorky and clever bloke. Still is. $0.02
As someone who’s dabbled a little into RF, you definitely simplified the Fourier transform part. Not that I’d expect anything else aimed at this more casual audience. I think a key point is that Fourier transforms happen to be very fast to compute for common microcomputer architectures just due to the mathematics, hence why their chip could be so small and cheap. But I’m unsure how that relates to giving the signal robustness against bouncing off walls. IIRC it’s some form of QAM (quadrature amplitude modulation), which is a mixture of PSK (phase shift keying) and often ASK (amplitude shift keying, the digital version of amplitude modulation) where each symbol (out of 16 or 64 or whatever) is represented by a certain coordinate on the complex plane. Each point (and hence each symbol) on the complex plane has a certain distance from the origin (amplitude) and angle with respect to the real axis (phase). A symbol is displayed for just a few cycles of the GHz wave before it’s changed to another symbol. Taking a Fourier transform of each modulated symbol will show that symbol’s coordinates in the complex plane, with the third axis being frequency which we don’t really care about. The Fourier transform image shown in the video displayed amplitude and frequency, but not phase. This method of modulation happens to be relatively good at encoding data densely, though I don’t think it’s terribly good for minimising bandwidth (as in the physical width of the band you’re transmitting on in MHz) due to the abrupt switches between symbols, for that I’d lean towards FSK with gradients between the transitions. The Shannon-Hartley theorem is an interesting piece of reading describing how much information can be transmitted given bandwidth and noise information.
![Intel - From Inventors of the CPU to Laughing Stock [Part 1]](http://i.ytimg.com/vi/JH2nXMv6yZI/mqdefault.jpg)
For those saying Wi-Fi stands for Wireless Fidelity, it actually doesn't. That's a massive misconception. A quote from Phil Belanger, a founding member of the Wi-Fi Alliance who presided over the selection of the name "Wi-Fi" :
"Wi-Fi doesn't stand for anything. It is not an acronym. There is no meaning."
Just wanted to clear that up.
Anyway, hope you enjoy the video!
You would be wrong.
hope you can do something on Li-Fi, why Li-Fi is difficult and seems useless, but people are still pursuing it
@@kalitor217 Yeah right.
Wi-Fi has no actual meaning. Wi-Fi was never shorter version of Wireless Fidelity. Wi-Fi Alliance used the advertising slogan "The Standard for Wireless Fidelity" for a short time after the brand name was created. In other countries Wi-Fi is called differently. For example in Germany we call it WLAN which means Wireless Local Area Network. So Wlan probably makes a bit more sense but i personally still like Wi-Fi sound better.
Eco Geek and trolls know shit.
Australia helps invent wifi...... still has worst internet speeds in the world.. W T F
Tragic I know.
WiFi != Internet
Hahaha so true 😭💀
Kelvin Klein I was gonna edit it out but since you did that ima leave it 🙂
Rolling Macarolli yea herd about that from friendly Jordie
*Moral of the story:* failures ain't always bad.
I need to remind myself that at work each day from now on ☺️
Failures are never bad 💯
Remember that time people were trying to set up cell towers and discovered the cosmic radio microwave background? Fun times
Moral of the story: Tesla was right, he predicted wifi a hundred years ago
Task failed successfully
"Hey, what's the IEEE 802.11 password?"
I think they should have stuck with that, nice and simple 🧐
😂😂
The IEEE 802.11AX password is....
I think if the name stayed the same we would say "what's the E password"
@@jorceshaman last decent standard that doesnt burn the top layer of your skin was 802.11ac. Enjoy your AX and sweat gland damage my friend... Each to his own...
This channel is really underrated
I always wondered how underrated this channel is. I've never been so excited for a youtube channel to release a video as much as this channel. I also listened to his book on Audible "New Thinking: from Einstein to SpaceX" and it instantly became my fav book! I also recommended the book and channel to my boss and colleagues at work. Well done Dagogo!
Most definitely
Underrated SMH
Well, I have my question marks because WIFI was a Dutch invention! And so is bluetooth!
It’s overrated. You people are just dumb and blown away by any kind of new information
Your voice is so soothing I sleep on it. Now I can't watch any of your videos without sleeping. 😭
Wait.
just yesterday i had a discussion with my dad telling me how pointless it is to finance research projects involving space...
@Radley2612 yeah sometimes i do have thoose tendencies...
had a lecturer told me how it's worthless to study environmental engineering
@Radley2612 sory am no native ingles
@@MsSaudm Go take your medication!!
@@ptrsrrll No You'll be the first in line for the vaccination Fool
Off the subject: man you should be a voice actor. Easy.
It’s like a vocal symphony hey.. 👌🏻
He already is, these videos are proof! He’s working for himself.
@@metallicgalaxy862 Plot twist, he was actually hired by the channels owner lolol
His more like a narator
@@beltranangarita he owns this channel and narrates his video's
“Name the greatest of all inventors. Accident.”
― Mark Twain
@Binamra Sharma 100% true.
Inventions are produced over the course of many, many carefully planned "accidents"
“What is now proved was once only imagined.”
-William Blake
Imagination is more important than knowledge - Albert Einstein
@@derksenmartijn yeah I agree too. Depends upon the field in some cases though.
Another insightful video, thanks Dagogo
It's strange because a lot of people don't really think about wifi as we usually take it for granted
True
a lot of people also think wifi is the same as the internet
Yes, and do you think about electricity when using a vacuum cleaner? You just plug it in and it works. Same as with wifi.
Oh, I definitely think about it.
It depends on the persons. If you grew up post Y2K you definitely appreciate it a lot and you're grateful for it.
Dagogo, I'm a Chartered Accountant who has been in business for more than 3 years and you have inspired me to start my own channel where I discuss business strategies, history, fintech and a whole lot more. I just wanted to say thank you and I pray that one day, I can be as big as you.
I'm speaking it into existence and in 6 months, I will come back to this comment to update you.
so, i can say that "i use a state of the art black hole detector device at my house"
.. which it doesn’t actually succeed at detecting, but maybe one day! 😌
Might be included in 809.01 WiFi specs
Failed ex black hole detector
no
The dutch created wifi. Vic Hayes the father of wifi created the IEEE 802.11 Protocol in 1997 in Nieuwegein the netherlands. It was called Waveland back then. Used in cash registers radios and things like that. He chaired the IEEE Developing group. Australia just made a chip to make the Wi-Fi signal stronger. Without the 802.11 protocol they couldnt have done it.
I love the quality of your videos and especially your taste in music. Bravo
@Joseph_66 Then, he definitely knows how to make dope music.
Whats the weirdest/funniest wifi name you have seen? - "It Burns When IP" made coffee come out of me once :)
Lol that’s literally my WiFi name
Some funnier WIFI names I've seen: "Mattu kerjab netti" (in english: Mattu begs for the internet), "Good news everyone, Futurama suc" and "Nokia 3310".
VIRUS
Billy Boy hah no way, did you went to see a doctor xD
Kertu Kärsna tore ka eestlasi siin ennast harimas näha 😁 (transl. Good to see estonians here educating themselves)
I knew the government wasn't smart enough to invent WiFi on purpose!
😅
😂👍
IEEE is usually pronounced "eye triple ee" which is much easier to say
Technology Connections has the best pronounciation anyways, something like "ayiiiiiii"
Was going to make this comment, beat me to it!
True, strange they both have the same number of syllables
@@blink182bfsftw Certainly better than I3E, or IE^3 or IE**3, or pick your variant on cubed. I always pronounced this as I-triple-E.
"Hey, what's the eye triple ee 802.11 password?"
Videos are often relaxing and educational simultaneously
I think it’s his vocal style.
ColdFusion is the Man! His videos are awesome. He inspired me to start making my videos. Thank you Cold Fusion.
You make awesome videos too. You deserve more subscribers.
You are one of the best channels in youtube!
Man,You make cool videos. You are very underrated. You need more subscribers.
Just for completeness' sake, any history of wireless communication (WiFi, Bluetooth, etc.) should really start with Hedy Lamarr. Without her insight, none of them would have made it to where they are today. Sadly, it took around 70 years before her contribution was officially recognised.
"Anyway, thanks for watching "
Me: what? 11 minutes just passed?
i have that too : his style of editing + music + his voice together paint some hypnotic relaxing draemscape to get lost in lol !
Always good to hear it: *Hi! Welcome to another COLDFUSION video!*
You should do a video on Hedy Lamarr and how her invention with George Antheil is one of the backbones of Wi-Fi and digital encryption.
it was not backbone of wifi
Very interesting story, just shows how much more could be achieved by collaboration of different ideas
Dagogo, you might want to start looking into Nikola Motors business practises. This might be your next 6 million views video in 1-2 years.
MsSaudm Just go onto WikiLeaks and you can find out how corrupt your government is. The US wanted to get rid of the founder of WikiLeaks because he was exposing them. They’ve tried everything to get WikiLeaks shut down.
They are dodgy af.
@@MsSaudm What?? You again!!
@@ibraheemkhan7134 Now Now! You shouldn't encourage the poor thing.
Welp that imploded faster than I expected.
I've seen 4-5 videos and already a fan, i don't normally find Australian accent very pleasant or cool but somehow I find this accent and channel very satisfying. Keep up the good work fam. The background music, intro the voiceover everything is so satisfying. ❤
Wow. Every time I think about things like all the different types of frequencies and waves constantly active around us, it blows my mind. The music is perfectly suitable as always. Thank you, Dagogo.
"What's the point of this kind of research?" -- I don't know why there is the feeling of a need to convince people of a "point"... it's a lot easier to explain to people that just because something doesn't interest them, it does interest other people, and those are the people who do the research, because they want to. It's good that we want to do different things, if some guy wants to try and detect small black holes, why would you want to stop him, or why convince other people that he's doing it for some other reason than that he wants to?
Just to clarify on the Wi-Fi =?= Wireless Fidelity. The origin of the name is quite obvious.
As mentioned by @annoloki in a nested comment to this video:
"It might not STAND for "wireless fidelity", but the reason it caught on was because "hi-fi" was already in common use... the "wi" IS from "wireless", and the "fi" IS from "fidelity", but the only thing it MEANS is to be catchy, to feel like it is a next step in a process that people already knew of as delivering cleaner, better sounding music etc. The history of a term does not have to equal the intent of a term."
Heard an anecdote from a co-worker who used to work at the CSIRO, apparently the signals were bending around stars and they'd receive two signals slightly offset from each other with interference, apparently the tech they built to pull those signals apart and get extra info out of them was the basis for their WiFi setup, as WiFi also suffers from it with signals bouncing around the room
One of the very few channels that actually keep my attention for longer than three minutes, you pull off another great video.
Thanks, and looking forward to seeing more!
Part of my annoyance is that CSIRO had to battle for royalty payments in the first place. Honestly, US corporations are nothing but a pack of arseholes. None of them considered what CSIRO achieved deserving of recognition, too arrogant to consider that an Australian company, in fact a branch of the Australian Government was able to develop something of use that they were deserving of royalties, they just ploughed on as if they had nothing to worry about. Sadly, if this was an Australian start up rather than part of the Australian Government fighting the case, the company would have been driven into the ground by the US court system.
Australia: Invents WiFi
Also Australia: One of the shittiest WiFi in the world
Your videos are like a therapy session, plus they’re interesting.
You already know within the first one and a half minutes that this is gonna be amazing and high-quality content..!!
Hugely interesting and balanced reporting, as usual. Many thanks, Eamon
I’ve been watching Cold Fusion for a while now! I loved their content! As such, I was inspired to make my own sci-fi/futurist channel!!
So, to show your appreciation, you became a competitor? ;-) (j.k. - good on you man!)
Your videos are pretty good too.
I think TH-cam blacklisted your channel after how money is created. Your videos don't come up as a notification or in my home page at all even though I got all notifications on. Hope your channel gets back to normal soon. Your one of the best channels on TH-cam.
Youre the best Dagogo, keep it up.
Proud of you man. Always answer the why.
The CSIRO also work in the area of forensic science for developing technologies that can be used to aid in criminal investigations and they also had a special guest presentation at my school about their forensic science department back in 2013 when I was still in primary school! :)
Best explanation of electromagnetic waves in layman's terms I've seen. Will share with my family. Video was great and very interesting as always Dagogo.
This was a fun one! It can hear how much you enjoyed making this video. Always great material and lots to think about !
I'm currently doing a Digital Communications modules in my 3rd year of Computer Engineering and this stuff is awesome
Your golden voice deserves more reward. Thank you for your educative content
How many people know that an Australian developed Bitcoin and that this Australian's grandfather was a cipher expert who was involved in the "code" breaking of the Japanese during the Coral Sea battle.
YES! WE HAVE THE OLD ICON BACK FOR THE CHANNEL! THANK YOU!
This is exceptionally well explained.
I get goosebumps when i hear to this guy. Such a nice voice and the way he narrates it is awesome.👍
Amazing video as usual, I can't thank you enough and too hungry for mooooore :D
As always amazing videos. Thanks you from Brazil
man your content speak for itself
Another fascinating video, thanks Dagogo. Your range and variety of topics is incredible ... and always enjoyable!
*48 minutes ago*
If this video was released a minute ago, how is your comment 48 minutes old? 🤔
WHAT SORCERY IS THIS?!
Enjoy your narrative around this Dagogo! Thanks for another great episode :)
Your videos are so easy to understand and at the same time very insightful. Good job man.👍🏻
This is by far one of the best channels on TH-cam! We always want to be better. In the states we pronounce IEEE as "I Triple E". Keep up the amazing work! You're the only channel I get excited about notifications from! I don't even skip the ads just so you can get more revenue. My way of paying it forward!
Great work, man
Reading New Thinking while traveling through America.
Brilliant!
Thank you for mentioning the benefits of science for science sake. You never now where it will take you. Well done!
I remember a 5 second mention on the news when WiFi was developed by CSIRO to replace all the cables behind the TV and VCR...talk about under estimated...
"That's almost universally known to most"
Haha I like that wording. Great video as always!
Just found your channel recently and I’ve been binging it for the past week. Incredible content, can’t believe it took me this long! Thanks for all your hard work Dagogo!
Very nice video dude you are great at what you do... Even the best.
the music at the end is euphoric !
This video has blown my mind!!!!! 🤯👌🏻🏆🎖🏆
Very amazing as always
That was a fantastic, easily digestible rundown on electromagnetic radiation
Nicely done. The reflection issues you refer to are not entirely solved, or even mostly solved, by signal processing techniques but it helps a lot. The other common technique is antenna diversity which most modern WiFi devices employ. Basically you have two antennas with some separation and different orientation between them and the WiFi hardware is constantly choosing the antenna with the better signal. With wavelengths so small even a few centimeters can make a big difference. We take WiFi and cellular data for granted these days but it’s amazing it works as well as it does. I’m also not normally a big fan of the US patent system but this at least an example of rightful patent holders being compensated.
Jagdish Chandra Bose is known as the father of wireless telecommunication. He had invented the Mercury Coherer, a radio wave receiver that was used by Guglielmo Marconi to build an operational two-way radio. The science behind capturing radio waves was first demonstrated by Bose.
You have amazing voice and excellent narration skill with research backed content. Keep it going pal!
thanks Dagogo, another well-researched & professionally-presented educational video of the absolute highest quality & production values. I'm a newish subscriber but from what i've seen so far, i'm beginning to expect nothing less from Cold Fusion TV's fascinating channel content. cheers man, and have a good one too :-)
Great ad timing:
Dagogo: "So to answer the question:"
*Ad instantaneously starts playing*
"Verizon 5G Gosh speed wireless..."
This was very informative. And it teaches us never stop your dream. Nice once.. :)
Always teaching something.
Thank you ColdFusion.
Dagogo your really a brilliant guy! Great work as always!
Would really love to see a video on all the tech advancements that came out of space exploration. A lot of short sighted people think that space exploration is futile. Need to have one video for them to refer.
"Happy accidents"
Bob Ross, would've like this video 👍
"...almost universally known to most." Wow! What a phrase to remember.
Something complicated very well explained in layman’s terms! I watch a lot of TH-cam videos on astrophysics and astronomy. This gives me a better understanding on some concepts I had a hard time grasping. Thank you!
I can just stare at the closing animation for hours and enjoy the smooth music.
My parents laughed at a guy doing his doctorate in how jelly sets... which became the LCD screen (another Ozzie invention). Your point at the end is spot on, we don't do science to make money but achieve can be used to make a lot of money.
Nice one as always 👏🏾👏🏾👏🏾
One correction to your video - the royalty payments of around $1B went to the federal government. About $10M went to CSIRO
Your cross referencing and Researching is top class... , and personally , Though different in content, Its very thorough, id equate your non biased approach to Jim from Adored TV...widely regarded as one of the best in the Computer / Tech industry.
Yep... Research is an art. I Tip my Hat Good Sir.
Funny thing is, Like the Ozzy Wifi happy accident, Same sort of thing happened with Fairlight ,,,
I love you conclusion ! We never know which applications can derive from space or more fundamental research.... 👍
Go go Dagogo!
Always fascinating content 😁
Great video, looking forward to the next
wow, actually seeing a coldfusion video less than a minute after it's uploaded? that's a first for me =)
Could you talk about JC Bose? A forgotten inventor who is said to have been a pioneer of Radio waves communication? Its not very well known but the guy's work led to the invention of Radio Waves and later Wifi
All the way from South Africa, I love your Videos brother
I love the music in your videos.
IEEE is colloquially called “I triple E” rather then literally saying “IEEE”
When I was a kid (10 or so) my dad was in a band with a trumpet player who eventually developed the Trumpet Winsock ... a vital part of connecting to the Internet using a modem and Windows in the 90's. He was a dorky and clever bloke. Still is. $0.02
That was a great explanation
From where you got those free video sketches without get copyright claim from TH-cam?
anyone can answer please..
Love from Pakistan.
You are doing great job.
My only favourite channel on TH-cam.
As someone who’s dabbled a little into RF, you definitely simplified the Fourier transform part. Not that I’d expect anything else aimed at this more casual audience. I think a key point is that Fourier transforms happen to be very fast to compute for common microcomputer architectures just due to the mathematics, hence why their chip could be so small and cheap. But I’m unsure how that relates to giving the signal robustness against bouncing off walls.
IIRC it’s some form of QAM (quadrature amplitude modulation), which is a mixture of PSK (phase shift keying) and often ASK (amplitude shift keying, the digital version of amplitude modulation) where each symbol (out of 16 or 64 or whatever) is represented by a certain coordinate on the complex plane. Each point (and hence each symbol) on the complex plane has a certain distance from the origin (amplitude) and angle with respect to the real axis (phase). A symbol is displayed for just a few cycles of the GHz wave before it’s changed to another symbol. Taking a Fourier transform of each modulated symbol will show that symbol’s coordinates in the complex plane, with the third axis being frequency which we don’t really care about. The Fourier transform image shown in the video displayed amplitude and frequency, but not phase. This method of modulation happens to be relatively good at encoding data densely, though I don’t think it’s terribly good for minimising bandwidth (as in the physical width of the band you’re transmitting on in MHz) due to the abrupt switches between symbols, for that I’d lean towards FSK with gradients between the transitions.
The Shannon-Hartley theorem is an interesting piece of reading describing how much information can be transmitted given bandwidth and noise information.
This here, is a prime example of the old saying "shoot for the stars, if you fail, you'll land on the moon"...