This is one of the best videos on internet explaining this topic. Sad this video didn't get millions of views...Almost no one gave the detail of how phone text leaves phone as a sphere...Well done...Also one doubt..does this mean longer texts take longer time to encode compared to say, single letter text? I wonder if there is time difference but is negligible to human eye
Love the series thus far. Excited to continue seeing new episodes. Saw some things I already knew explained in a fun cool way. Learned some new things as well. Already one of my favorite science based channels on RUclips. Great work.
Incredible. It amazes me how little thought we put into the science behind our smartphones. We send a text and expect it to be delivered. We don’t think about the energy that is all around us, making it all possible. The world is so fascinating.
Excellent basic video and like someone mentioned, I also like the light colors analogy. It would be too much to explain how every time you touch a key all of the things going on. I don’t know how these work and it would be great to learn, but I know with mainframes and CICS, they would send out what was typed in, but preceding what was typed in would be something telling the receiver what to expect, once it got to the intended target, what was received was sent back to the sender and if it was different, the Number of bytes and data, An error message would be generated. They are going between applications and systems programs. I was a main frame programmer in the 70s until 1985, and still think in the terms of the time on what happens. It is mind-boggling to me now with the way the Internet works with the way text messaging works etc. thinking about the amount of code that would have to be written. I know these fourth generation or fifth generation or whatever it is languages have a macros that put the old Macros to shame. One instruction or call will execute thousands and thousands of commands. A little too old to start trying to learn that, oh but I would still love to have the time and financial means to take courses just to learn what is happening. Keep playing the lottery! Lol
Great video--love the graphics. Just one thing you might consider fixing: It looks like you have different radio frequencies traveling at different speeds at 2:27 in the video
Great video. I wonder, how sensitive are the towers to changes in frequency? The density of some areas in the world is ridiculously high so I assume it is very sensitive based on the fact that everyone gets a different frequency. Some numbers would help me to put things into perspective. Thanks!
+Rubi Pinchasov Great question! Each antenna on a tower has surprisingly few frequencies to send texts with (on the order of 100). The antenna gives your phone several frequencies to communicate with at one time. Since that means the antenna can only talk to several people at once, there are a few things that more communication is possible in populated regions: - In densely populated regions there cell towers are much closer than a few miles apart; here's a good picture of what that looks like (in Chicago): i.huffpost.com/gen/1512357/original.jpg - Each tower can have multiple antennas that each communicate in different directions (phones send signals spherically outward in all directions, the tower antennas send signals in a narrower region) - The antennas juggle the frequencies between people very quickly. As far as frequency resolution goes, the frequencies used are on the order of 1 MHz apart.
+Rubi Pinchasov Another interesting point regarding frequency sensitivity would be the effect from doppler shifts, e.g. when riding a high speed bullet train in Japan.
+Asura interesting! Doppler shift is actually pretty insignificant here because the speed of the radio waves (light speed) is so much larger than the speed of the train. The frequency change would be a small fraction of the radio wave frequency (less than 1 millionth).
My question is, is it possible for someone who is a stranger to send a text that has the same frequency as you? There can only be so many different frequencies. Now what would happen then
+WhatThePhysics. How the message is transfered in the other side of sea? As I known,there aren't any towers in the sea to transfer the message in the other side,are there?. Thank you for ur lovely videos!They are really great!
+WhatThePhysics?! When a cell phone sends a message, the waves reflect from various surfaces causing possible change in order in which the tower receives the message. In case of binary it will totally ruin the message. So how do we deal with this?
I think the video is a bit simplified for clarity. In reality, cellphones and most other digital comunication devices communicate using various protocols. As far as I know most of them use some kind of packet. They don't send individual bits one by one as they are created in the phone, instead, messages are formed into packets of data. One message = one or more packets, depending on the size of the message. You can think of it as snail-mail. Each packet has an envelope with a header that describes the sender and the recipient, same as the name and address of people sending letters. So one message is a block of bits that travel together so there is no chance of bits being reordered and messing up the message in the way you are describing. Of course there can be interference and other kinds of errors that can mess up a packet but that is a whole other story. If I'm wrong, someone correct me.
I would imagine that the tower and your phone is going to encode the message into a a format that only the phone and the tower know how to decode. So if someone tried to intercept the message they would have to know the exact algorithm to decode the message into a sensible message. Kind of like sending it in another language, but you don't know how the language works.
I have a question though . u said every radio wave has a particular shap/color . so does that mean radio waves have unlimited shapes? Please answer me ASAP and thank you ♡
Awesome videos you got in your channel! You deserve more likes and subscribers actually. I'm expecting more videos from you in the future! Keep it up man!
Your phone is constantly talking to the nearest tower so even if you move you will just continue to talk to the next tower and the information your friend sends will end up there instead. What is interesting is if you are having a phone call or streaming a youtube video and you switch tower, then you will have a hand-over between two towers so that your call continue without you noticing anything. The towers overlap with each other in such a way that they can notice if you are going away from one tower and towards another. Then when you are in between two, the towers simply switch you over to the tower you are closest too even when moving.
Good video but its really not the full truth. There are many things that are mentioned in the Video that do not apply to the reality. Nevertheless the Video does give a good model of how text are sent
besides the cell phone companies are legally obligated to provide an interface to lose enforcement agencies so they can listen to your conversations, read your texts and see what you browse without even asking the cellphone companies
Mehboob ur Rehman Well this is incorrect. They are not "legally obligated" at all. There are many big law suits going on about just this. Yes government have things like NSA ect. But these are in no way legal. An interesting thing right now is the Amazon Alexa thing, where they are refusing to give the police the soundclips from a suspected murderer.
TonyAnd Kevin Well they are obligated in my country (Pakistan). I don't know exactly about other countries but from the way things are going it only seems like a matter of time.
Nice! I like the comparison of different frequencies to colors. Well done. :)
Hi, Joe Scott!
Really loving these jokes! That "Stop texting me" text is genius! lmao
This is one of the best videos on internet explaining this topic. Sad this video didn't get millions of views...Almost no one gave the detail of how phone text leaves phone as a sphere...Well done...Also one doubt..does this mean longer texts take longer time to encode compared to say, single letter text? I wonder if there is time difference but is negligible to human eye
You are awesome you deserve more subs
how is he verified tho?
Love the series thus far. Excited to continue seeing new episodes. Saw some things I already knew explained in a fun cool way. Learned some new things as well. Already one of my favorite science based channels on RUclips. Great work.
In the UK we don't call them 'cell phones' we call them 'mobile phones' but now, for me, 'cell phone' makes so much more sense!
Incredible. It amazes me how little thought we put into the science behind our smartphones. We send a text and expect it to be delivered. We don’t think about the energy that is all around us, making it all possible. The world is so fascinating.
dude i hope u get more subs, your content is great!
Great explanation. Awesome video. Excellent job!
Excellent basic video and like someone mentioned, I also like the light colors analogy.
It would be too much to explain how every time you touch a key all of the things going on. I don’t know how these work and it would be great to learn, but I know with mainframes and CICS, they would send out what was typed in, but preceding what was typed in would be something telling the receiver what to expect, once it got to the intended target, what was received was sent back to the sender and if it was different, the Number of bytes and data, An error message would be generated. They are going between applications and systems programs. I was a main frame programmer in the 70s until 1985, and still think in the terms of the time on what happens. It is mind-boggling to me now with the way the Internet works with the way text messaging works etc. thinking about the amount of code that would have to be written. I know these fourth generation or fifth generation or whatever it is languages have a macros that put the old Macros to shame. One instruction or call will execute thousands and thousands of commands. A little too old to start trying to learn that, oh but I would still love to have the time and financial means to take courses just to learn what is happening. Keep playing the lottery! Lol
Great video--love the graphics. Just one thing you might consider fixing: It looks like you have different radio frequencies traveling at different speeds at 2:27 in the video
So how is the actual phone number involved in this process?
interesting / can text message transfer to electronic signal?
Great video. I wonder, how sensitive are the towers to changes in frequency?
The density of some areas in the world is ridiculously high so I assume it is very sensitive based on the fact that everyone gets a different frequency.
Some numbers would help me to put things into perspective. Thanks!
+Rubi Pinchasov
Great question! Each antenna on a tower has surprisingly few frequencies to send texts with (on the order of 100). The antenna gives your phone several frequencies to communicate with at one time. Since that means the antenna can only talk to several people at once, there are a few things that more communication is possible in populated regions:
- In densely populated regions there cell towers are much closer than a few miles apart; here's a good picture of what that looks like (in Chicago): i.huffpost.com/gen/1512357/original.jpg
- Each tower can have multiple antennas that each communicate in different directions (phones send signals spherically outward in all directions, the tower antennas send signals in a narrower region)
- The antennas juggle the frequencies between people very quickly.
As far as frequency resolution goes, the frequencies used are on the order of 1 MHz apart.
+What The Physics?! hmmm interesting. Thanks for the answer.
+Rubi Pinchasov Another interesting point regarding frequency sensitivity would be the effect from doppler shifts, e.g. when riding a high speed bullet train in Japan.
+Asura interesting! Doppler shift is actually pretty insignificant here because the speed of the radio waves (light speed) is so much larger than the speed of the train. The frequency change would be a small fraction of the radio wave frequency (less than 1 millionth).
What The Physics?! Yeah, since the sensitivity is so low I would assume Doppler effects have negligible effects on the frequency.
Yoooooooo dass crAZY thanks for explaining it like that it’s fucked up we live under a super dome of mindcells, it self a supermind
My question is, is it possible for someone who is a stranger to send a text that has the same frequency as you? There can only be so many different frequencies. Now what would happen then
+WhatThePhysics. How the message is transfered in the other side of sea? As I known,there aren't any towers in the sea to transfer the message in the other side,are there?. Thank you for ur lovely videos!They are really great!
+Lirim Sopaj Thanks so much!! Submarine communications cables connect every continent except Antarctica, which uses satellites. (en.wikipedia.org/wiki/Submarine_communications_cable)
+What The Physics?! Thank you for your information!
Why happens when u send a vid?!?
+WhatThePhysics?! When a cell phone sends a message, the waves reflect from various surfaces causing possible change in order in which the tower receives the message. In case of binary it will totally ruin the message. So how do we deal with this?
I think the video is a bit simplified for clarity. In reality, cellphones and most other digital comunication devices communicate using various protocols. As far as I know most of them use some kind of packet. They don't send individual bits one by one as they are created in the phone, instead, messages are formed into packets of data. One message = one or more packets, depending on the size of the message. You can think of it as snail-mail. Each packet has an envelope with a header that describes the sender and the recipient, same as the name and address of people sending letters. So one message is a block of bits that travel together so there is no chance of bits being reordered and messing up the message in the way you are describing. Of course there can be interference and other kinds of errors that can mess up a packet but that is a whole other story. If I'm wrong, someone correct me.
can you please upload?
Great video wow you get more from this dude then what you learn in a lesson in technology.
what if you created a device that could select a random frequency, or match a specific frequency of another target and monitor the messages?
I would imagine that the tower and your phone is going to encode the message into a a format that only the phone and the tower know how to decode. So if someone tried to intercept the message they would have to know the exact algorithm to decode the message into a sensible message. Kind of like sending it in another language, but you don't know how the language works.
Used as a flirting device.
What if i send a video or picture?
Video or picture are just (huge amount of text) try opening a video in notepad.
Then how do they send a vid
Video or picture are just (huge amount of text) try opening a video in notepad.
I have a question though .
u said every radio wave has a particular shap/color . so does that mean radio waves have unlimited shapes?
Please answer me ASAP and thank you ♡
Hi Radwa Orman. Yes, there are is a continuous (infinite) spectrum of frequencies (I think that's what you mean by shape)!
What The Physics?! so that mean every frequency is unique right? yay now I fully understand thank u a lot ♡
Keep your great work♥
Uploaded in 2016 and this channel has only 60.6K subscribers and this video has merely 50,753 veiws???
What the Physics?!
Why text message was not delivered?
Then how are videos emanated?
Useful video💯
Awesome videos you got in your channel! You deserve more likes and subscribers actually. I'm expecting more videos from you in the future! Keep it up man!
this was amazing but what if your friend or you changed cells?
Your phone is constantly talking to the nearest tower so even if you move you will just continue to talk to the next tower and the information your friend sends will end up there instead.
What is interesting is if you are having a phone call or streaming a youtube video and you switch tower, then you will have a hand-over between two towers so that your call continue without you noticing anything.
The towers overlap with each other in such a way that they can notice if you are going away from one tower and towards another. Then when you are in between two, the towers simply switch you over to the tower you are closest too even when moving.
Really informative
Interesting, after watching this video, I know for a fact I can make a system like this. Pretty easily might I add. It wouldnt be very secure though
That backgroind music sickk
Just, wow!
What about video
how does video gets its 1 0 number
Ok how in the world does it send a video??
I'm texting right now!
The animator💯
Mind- blow
Thats so cool
I always thought cell phones were named so because they had cells (batteries), well, the more you know...
woowwwww that's amazing
OMG awesome video but the music and style makes it an X-Files episode
I wonder what color my messages are
Hello :)
Now i Know what happens while i'm texting. But... What happens while i call sombody? :D
I believe an audio call is digitalized, too. Hence there is no difference in the way of transmission.
It's actually way way more complicated than that.
Can you give me some hints which topics are most important for a deeper understanding?
Good video but its really not the full truth. There are many things that are mentioned in the Video that do not apply to the reality. Nevertheless the Video does give a good model of how text are sent
doin God's work, son
So is this how the CIA or someone could track where you are? using these cells?
obviously.
So Obvious!
besides the cell phone companies are legally obligated to provide an interface to lose enforcement agencies so they can listen to your conversations, read your texts and see what you browse without even asking the cellphone companies
Mehboob ur Rehman Well this is incorrect. They are not "legally obligated" at all. There are many big law suits going on about just this. Yes government have things like NSA ect. But these are in no way legal. An interesting thing right now is the Amazon Alexa thing, where they are refusing to give the police the soundclips from a suspected murderer.
TonyAnd Kevin Well they are obligated in my country (Pakistan). I don't know exactly about other countries but from the way things are going it only seems like a matter of time.
My parents always told me it was satellites
Wowwww
TIL
Bro what
only one emoji can describe this video, 🤯
❤❤
Its mean there are thousands colour 😯😯😯😯😯😯😯😯..haaa hyeee
Wtf
Christ i gotta get off this wonder wheel
A brain? Really?