Another analogy is ocean balls that children play in. Humans like radio waves can walk through with little resistance Flies like light may move through just a little but not much However ants like gamma moves between the gaps.
Thank you for this video. This also explains why living beings can only perceive light: it's because it can be easily stopped by matter, unlike other types of EM waves.
i get why light cant get through cause of the mosquito example and i get why gama rays and all that stuff can pass through the gaps between the atoms, but i still dont get why can the big radio waves can get through walls, shouldnt they be blocked just like the mosquito example?
I have been thinking the last year (I don’t know why not years ago!) that this is just magic that Wi-Fi is invisible and goes through everything. Your explanation is so awesome and easy to understand!!! I’m also curious about how the specific information (like a photo or a movie or anything) travels on these invisible waves. It must be just an incredible amount of information going through the air at all times… a little scary too
BLUETOOTH: (for example) It works by emitting slightly different wavelengths. The devices that run on bluetooth are a similar idea to wifi. They send MILLIONS of different frequency waves PER SECOND.. and your airpods (fr example) receive at the same speed too.. millions of times per second. They don't send different wavelengths for different music, the only thing it sends is 2 slightly different wavelengths, one represents a 0, and the other a 1. The device reads these 1/0s at lightning speed, essentially decoding information into instructions. It gets way more complicated though! These 1s and 0s are sent in packages of a few hundred bits per milisecond. (so hundreds of 1s and 0s per package per milisecond) The start of this information is a security check, so that your airpods know what "package" is for you. Otherwise your music would fail when another bluetooth device is closeby.. it wouldn't know what signal is yours! So it sends a package with a "key" that only your airpods know. When the key is accepted, the other informstion is read. But there is even more.. to prevent people from tapping into your conversations and music signals, devices such as these send the 1s and 0s over slightly different channels. See it's actually *NOT* 2.4ghz... It's: 2,400 to 2,483.5 Mhz... There are tens of "channels" which your device switches between constantly, and only your airpods get to know what that channel is, so that if you were to tap 2,455mhz to see what music someone ELSE is listening to: all you would hear is weird noise, nothing useful.. That way your information is private and you can listen using multiple bluetooth or wifi devices at the same time. If you accedentally lose a package because another device is on the same channel, your devices will know, and they will send the package again to fix the mistake. Since this all happens millions of times per second, you won't notice a thing, and your music will sound great.
2.4ghz and 5ghz refers to frequency, not wavelength. Since the frequency is inversely related to the wavelength, the higher the frequency, the smaller the wavelength, thus why 5ghz WiFi can not penetrate barriers as well as 2.4ghz WiFi bands, even though the higher frequency can transmit faster speeds.
Technically, what Badzilla argues here is incorrect. I’m not attacking him, because analogies are meant to build intuition, and I think that is what he is doing. The way that he uses “large” implies a spatial component to the fields in light. Remember, that when you see those charts of light where you have electric fields in one direction, and orthogonal magnetic fields in the other, the height of those fields ARE NOT SPATIAL. It is not the “smallness” or “largeness” of certain EM frequencies that allows them to pass. Rather, it is the bands of frequencies that the matter in the walls won’t oscillate to. Imagine your friend is on a swing and you (the pusher) is pushing them at a certain rate (frequency) If you push them once every minute (low frequency), they will hardly move. If you push them once every second (high frequency), you will essentially cancel their oscillation out with half of your pushes.
I was getting a little bit confused with the pennetration power of 5G band and x ray... considering their frequncy ...but..after all it's so clear..thank you..
It's basically for what purpose they are. Sound wave are natural resonance of air. So it create's more eddy current in air molecule and get's reflected. Visible light got more colour's in it. When it come's in contact with matter with colour it's create's eddy current. Which reflect it back. And we see object. We just have to find out what is in wi fi signal. Only then we can stop it.
If I'm not mistaken , all of these, cause they don't need a medium essentially. Well in case of solids , consider wavelength to be too small like gamma rays .
@@rajdeepkarmakar7676 If we keep it to the radio waves for simplicity. Radio EM waves can travel trough all and even trough nothing/vaccume so I would say non of the above. EM dont travel VIA any of the mediums but it is by-passing them = non of the above. BUT at the same time Radio EM waves CAN ofcource also be blocked (with just a sheet of aluminum foil for example.) To me EM waves is a super exotic thing that we dont understand the fundamentals of. But a thing we should be able to logicaly agree on is that it’s NOT a particle, right? To me, EM waves must be traveling via something else, some extra layer of stuff that we have not yet recogniced.
I work in electronics/comms, and this question puzzles me, i had heard your analogy before but it doesn't click it just doesn't makes sense to me. I have a theory, I think larger waves carry more power and can recreate a wave on the other side of the wall.
Rain analogy doesn’t really click. You’re not walking through rain like a ghost, you are pushing the rain away that hits you. Waves pass through walls without moving/damaging them.
my question here is this how it penetrate, not the size comparison, for example when you re in a room with closed door - how does the EM-wave goes through it?!
because in this case, the mosquito is small enough to avoid the atoms of the drops, but the mosquito will end up hitting a few drops and because it's so energetic, it will break them up. during a spread, several mosquitoes go off in all directions, some of them managing to avoid the raindrops for a certain distance, others hitting the drops and being reflected back. gamma rays that come into contact with human cells can destroy DNA and cause irreparable damage (cancer), because they have a lot of energy. the smaller the wave, the higher its frequency and the greater its energy.
Can someone please answer me this? Is it harmful for the signal to enter/ pass through your body into the device? For example. I'm on the 2nd floor of my house laying in bed and my router is in the room under me. My laptop is on my lap/stomach while i'm watching UA-cam videos. So the signal must be going through me right? is that harmful?
No, it actually cannot pass through your body. Your body absorbs wifi as heat. Wifi is non-ionic which means it can pass through walls and even cells in your body. But it isn't the right size to damage cells, nor pass through them efficiently, so it bounces around degrading into thermal energy. The power level is too low to generate enough heat to even measure (unless you stand in front of a GIANT radio tower transmitter, which would heat you exactly like a microwave oven).
not sure if my doubt is silly or genuine, i'll anyway go ahead and ask... when it's raining, if a human passes through the rain drops he is displacing the rain drops...correct? but radio waves do not displace the atoms in the wall or do they?
Yes. They do push actually. Photons have a very little mass, which is negligible in comparison to the raindrop. A human is relatively heavy, so it's easier to push it.
Radio waves create extremely small amounts of thermal energy, like friction, when they pass through walls. Waves that hit densities they can't pass through at all degrade into thermal energy (that's what a microwave does to cook food).
Sorry but the size example doesn't make any sense to me because in EMF world the smaller is more powerful so radio waves are actually the weakest type of EMF, so it doesn't make sense to say they're the biggest as if they would have more power. Sure they're long regarding their wave length, but that's just oscillation which means that the radio waves oscillate poorly which means they have little energy packed into them, just like car's wheels when they oscillate poorly aka spin slow. I think this explanation made no sense, but well done video anyway.
these knowledge -language-metaphor waves did not penetrate my brain barrier. I still don't get it. Are they air pressure? NO? Then what are they?n Electricity in the air? What are they?
This is a poor analogy and a poor explanation that have been used by many others. If the WIFI waves are so large with respect to a wall, such that they can pass through the wall because the wall is "almost invisible" (or not there) then how do you explain why WIFI cannot pass through a typically sized metal wall? Somebody, please, state the exact reason for this question, regardless of its complexity..
I got you, bro. Remember that we are talking about something that is made up of oscillating electric and magnetic fields, or disturbances in electromagnetic space. The metal is a great conductor for electricity, so those disturbances when they pass through the metal will conduct electricity. Due to conservation of energy, when those waves conduct electricity in the metal, they “die out” because their energy goes to the movement of the electrons in the metal door.
The elephant/mosquito analogies are pretty stories but I fail to understand what they have to do with wave energy. "Just so" stories like these are anti-science.
I was sitting on the toilet wondering how does the wifi pass through the toilet walls? So I ended up here.
YES! UA-cam University wins again!
You will always scratches your mind while sitting and popping on the bowl.
Me too
Lmao same
Me three
All you need to know is..
wifi to wall is to light to glass.
Some glass is just more tinted than others.
That analogy made me understand better
Another analogy is ocean balls that children play in.
Humans like radio waves can walk through with little resistance
Flies like light may move through just a little but not much
However ants like gamma moves between the gaps.
Very educational and good info, dude. This is amazing.
Khalifah thanks man. Am happy it was useful to you!
Watched many videos on the topic but didn't understand anything. This is the best video. Thank you.
IDK why I'm watching this but it was very educational and clear. Thanks
I love the way u explain what we studied .. I feel like I just understand what I learned
Abdllah Alaidaros Thanks a lot man. Am glad you liked it
Thank you for this video. This also explains why living beings can only perceive light: it's because it can be easily stopped by matter, unlike other types of EM waves.
Awesome analogy and great explanation! Keep doing it
You have some great analogies man really helps you understand. Thank you
Thanks man, this helped me finding a better position to setup the AP
You are an amazing professor. It is clear now for me. You solve the problem and the puzzle. Thank you again😍
You are awesome, brother! Thanks for the knowledge.
I've been studying basic acoustics & lightings these days, but still don't know how wavelength works until I watch this haha. Thank you!
Wow, they are complicated.
Thanks for the knowledge, it was much easier to understand it.
I was lost until you mentioned atoms then it clicked thank you :D
that actually was a very good analogy and I did learn something new even though I felt like it was right In front of me the whole time
This was wt I was in need of ,,, that's made me everything clear ,,,, stay happy may god bless you ,,,, tqsm 🙏🙏
Now I understand this completely thanks bro
i get why light cant get through cause of the mosquito example and i get why gama rays and all that stuff can pass through the gaps between the atoms, but i still dont get why can the big radio waves can get through walls, shouldnt they be blocked just like the mosquito example?
You make me understand. Salute you bro. Nice info. Now my question answered.
I have been thinking the last year (I don’t know why not years ago!) that this is just magic that Wi-Fi is invisible and goes through everything. Your explanation is so awesome and easy to understand!!! I’m also curious about how the specific information (like a photo or a movie or anything) travels on these invisible waves. It must be just an incredible amount of information going through the air at all times… a little scary too
BLUETOOTH:
(for example)
It works by emitting slightly different wavelengths. The devices that run on bluetooth are a similar idea to wifi. They send MILLIONS of different frequency waves PER SECOND.. and your airpods (fr example) receive at the same speed too.. millions of times per second.
They don't send different wavelengths for different music, the only thing it sends is 2 slightly different wavelengths, one represents a 0, and the other a 1.
The device reads these 1/0s at lightning speed, essentially decoding information into instructions.
It gets way more complicated though!
These 1s and 0s are sent in packages of a few hundred bits per milisecond.
(so hundreds of 1s and 0s per package per milisecond)
The start of this information is a security check, so that your airpods know what "package" is for you. Otherwise your music would fail when another bluetooth device is closeby.. it wouldn't know what signal is yours!
So it sends a package with a "key" that only your airpods know. When the key is accepted, the other informstion is read.
But there is even more.. to prevent people from tapping into your conversations and music signals, devices such as these send the 1s and 0s over slightly different channels.
See it's actually *NOT* 2.4ghz...
It's: 2,400 to 2,483.5 Mhz...
There are tens of "channels" which your device switches between constantly, and only your airpods get to know what that channel is, so that if you were to tap 2,455mhz to see what music someone ELSE is listening to: all you would hear is weird noise, nothing useful..
That way your information is private and you can listen using multiple bluetooth or wifi devices at the same time.
If you accedentally lose a package because another device is on the same channel, your devices will know, and they will send the package again to fix the mistake.
Since this all happens millions of times per second, you won't notice a thing, and your music will sound great.
2.4ghz and 5ghz refers to frequency, not wavelength. Since the frequency is inversely related to the wavelength, the higher the frequency, the smaller the wavelength, thus why 5ghz WiFi can not penetrate barriers as well as 2.4ghz WiFi bands, even though the higher frequency can transmit faster speeds.
Thank you Badu, very helpful for understanding my drone around buildings!! Very well produced!!
My doubt is clarified by your explanation.. ❤❤
Great explanation 👍
Technically, what Badzilla argues here is incorrect. I’m not attacking him, because analogies are meant to build intuition, and I think that is what he is doing. The way that he uses “large” implies a spatial component to the fields in light. Remember, that when you see those charts of light where you have electric fields in one direction, and orthogonal magnetic fields in the other, the height of those fields ARE NOT SPATIAL.
It is not the “smallness” or “largeness” of certain EM frequencies that allows them to pass. Rather, it is the bands of frequencies that the matter in the walls won’t oscillate to. Imagine your friend is on a swing and you (the pusher) is pushing them at a certain rate (frequency) If you push them once every minute (low frequency), they will hardly move. If you push them once every second (high frequency), you will essentially cancel their oscillation out with half of your pushes.
Really ,the examples was so awesome
Great video Badzilla! What do you know about Light Fidelity Technology LiFi)?
Very much informative sir👍 how do we protect ourself from neighbors wifi signals??
electric fields are everywhere, in nature the field is approx. equal to 150 volts per meter
Perfectly explained
Nice explanation
simple and clear. thanks mate
Hey, that's cool, thanks for explaining so clearly!
Thanks for the info! Great video!
Thank you so much for watching.
Great video Badru i learn something new from u keep it up love ur vids
Thanks a lot man :D
Very well said
This is brilliant.
Thanks a lot. I just uploaded Part 2, Check my last upload. :)
I was getting a little bit confused with the pennetration power of 5G band and x ray... considering their frequncy ...but..after all it's so clear..thank you..
Interesting. Thanks for this video. I truly learned something here!
very good explanatiion
Can we get a video on whay type of walls and type of objects are better transmitters and what are worst transmitters for a Wi-Fi signal?
There are holes and open spaces also that can't be seen by the naked eye that the WyFy simply slips through as well
Nice explanation 👌
It's basically for what purpose they are.
Sound wave are natural resonance of air. So it create's more eddy current in air molecule and get's reflected.
Visible light got more colour's in it. When it come's in contact with matter with colour it's create's eddy current. Which reflect it back. And we see object.
We just have to find out what is in wi fi signal. Only then we can stop it.
Good job! Now on to the next fun question, in what medium does EM Waves's travel?
A) a gas.
B) a liquid
C) solid
D) Non of the above
B
D
@@akshaysai1109 Arrrghhhh, blast you science!!!
If I'm not mistaken , all of these, cause they don't need a medium essentially. Well in case of solids , consider wavelength to be too small like gamma rays .
@@rajdeepkarmakar7676 If we keep it to the radio waves for simplicity. Radio EM waves can travel trough all and even trough nothing/vaccume so I would say non of the above. EM dont travel VIA any of the mediums but it is by-passing them = non of the above. BUT at the same time Radio EM waves CAN ofcource also be blocked (with just a sheet of aluminum foil for example.)
To me EM waves is a super exotic thing that we dont understand the fundamentals of. But a thing we should be able to logicaly agree on is that it’s NOT a particle, right?
To me, EM waves must be traveling via something else, some extra layer of stuff that we have not yet recogniced.
Great video u got me to subscribe
I work in electronics/comms, and this question puzzles me, i had heard your analogy before but it doesn't click it just doesn't makes sense to me. I have a theory, I think larger waves carry more power and can recreate a wave on the other side of the wall.
quantum physics 101
Amazing video.top man👍
I really loved this video. Pls use a better voice recording setup. Love ur content. Cheers mate!
Hey, does bluetooth penetrate walls? I need a mouse a keyboard that connects to my pc in another room. (very long hdmi cable for monitor)
i really liked this video
Thank you so much!!
Rain analogy doesn’t really click. You’re not walking through rain like a ghost, you are pushing the rain away that hits you. Waves pass through walls without moving/damaging them.
my question here is this how it penetrate, not the size comparison, for example when you re in a room with closed door - how does the EM-wave goes through it?!
Very nice and informative video, but the dab was a bit unnecessary.
Excellent
Thats so clear
Thanks a lot
I like that example elephant and ant on lol
So microwave can passthru walls. Does it mean it can also pass metals?
How about if you put it a color less lunch box?
But why does gamma rays can pass through walls if the mosquito represents that smaller wavelength???
because in this case, the mosquito is small enough to avoid the atoms of the drops, but the mosquito will end up hitting a few drops and because it's so energetic, it will break them up. during a spread, several mosquitoes go off in all directions, some of them managing to avoid the raindrops for a certain distance, others hitting the drops and being reflected back. gamma rays that come into contact with human cells can destroy DNA and cause irreparable damage (cancer), because they have a lot of energy. the smaller the wave, the higher its frequency and the greater its energy.
thank you waldo
Why visible light pass through glass. Glass is solid. It can pass through diamond
what about wi-fi? how would you explain it?
And the Gamma rays becomes the Matrix.
Thanks bro!
I was wondering bluetooth signals go through walls and ended up here
Thanks 😊
Can a signal split up in 2 when hitting a wall in a way so it both reflect and penetrate?
Jesus really does love each and every one of you very much!!!
Jesus loves us with wifi? Dang
Can microwave travel thru walls
Can someone please answer me this? Is it harmful for the signal to enter/ pass through your body into the device? For example. I'm on the 2nd floor of my house laying in bed and my router is in the room under me. My laptop is on my lap/stomach while i'm watching UA-cam videos. So the signal must be going through me right? is that harmful?
No
No, it actually cannot pass through your body. Your body absorbs wifi as heat. Wifi is non-ionic which means it can pass through walls and even cells in your body. But it isn't the right size to damage cells, nor pass through them efficiently, so it bounces around degrading into thermal energy. The power level is too low to generate enough heat to even measure (unless you stand in front of a GIANT radio tower transmitter, which would heat you exactly like a microwave oven).
thanks
Thanks it helps me
شكراً لك 🌹❤️❤️
not sure if my doubt is silly or genuine, i'll anyway go ahead and ask...
when it's raining, if a human passes through the rain drops he is displacing the rain drops...correct? but radio waves do not displace the atoms in the wall or do they?
Yes. They do push actually. Photons have a very little mass, which is negligible in comparison to the raindrop. A human is relatively heavy, so it's easier to push it.
Julian Petit don't photons have no mass?
Photns have No rest mass
Radio waves create extremely small amounts of thermal energy, like friction, when they pass through walls. Waves that hit densities they can't pass through at all degrade into thermal energy (that's what a microwave does to cook food).
Thank you so so much
If its related to being big to go through a wall , you are also big but why you cant go through a wall too?
Because at this scale, am not a wave, WIFI and radio signals are electromagnetic waves
How do these waves affect the human brain? Does it cause health issues in humans?
0:44 What is aborption?
Sorry but the size example doesn't make any sense to me because in EMF world the smaller is more powerful so radio waves are actually the weakest type of EMF, so it doesn't make sense to say they're the biggest as if they would have more power. Sure they're long regarding their wave length, but that's just oscillation which means that the radio waves oscillate poorly which means they have little energy packed into them, just like car's wheels when they oscillate poorly aka spin slow. I think this explanation made no sense, but well done video anyway.
ty
No words.
💯
these knowledge -language-metaphor waves did not penetrate my brain barrier. I still don't get it. Are they air pressure? NO? Then what are they?n Electricity in the air? What are they?
then why there are so many mosquitoes in our home when it rains!
👍🏻👍🏻🙏🏻
you're just saying radio waves can pass through a wall because they can.
Matter (walls) is mostly nothing
Greaat
3:00 HE DABBED!!!!!
yeah mate good analogy but this doesnt explain it
This is one of the worst and confused explanation I have ever heard. But thumbs up for the effort 👍🏻
1:55
2:37
come to find out how wifi goes through walls didnt say nothing about an aborption :P
Simply useless.
So why do LONG wave lengths go through and not short?
That still doesn't make sense, all you did is confuse us even more
This is a poor analogy and a poor explanation that have been used by many others. If the WIFI waves are so large with respect to a wall, such that they can pass through the wall because the wall is "almost invisible" (or not there) then how do you explain why WIFI cannot pass through a typically sized metal wall?
Somebody, please, state the exact reason for this question, regardless of its complexity..
I got you, bro. Remember that we are talking about something that is made up of oscillating electric and magnetic fields, or disturbances in electromagnetic space. The metal is a great conductor for electricity, so those disturbances when they pass through the metal will conduct electricity. Due to conservation of energy, when those waves conduct electricity in the metal, they “die out” because their energy goes to the movement of the electrons in the metal door.
The elephant/mosquito analogies are pretty stories but I fail to understand what they have to do with wave energy. "Just so" stories like these are anti-science.