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/g/ - Technology


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64657497 No.64657497 [Reply] [Original] [archived.moe] [rbt]

How can WiFi go through walls?

>> No.64657502

>>64657497
Why wouldn't it?

>> No.64657515

Go to another room and close the door then reply to this thread
I want to know too

>> No.64657524

>>64657515
>Missing the first word of the question

>> No.64657537

How can sound go through walls?

>> No.64657539

>>64657497
EM waves n shit

>> No.64657543

...how can wifi go through wifi?

>> No.64657544

>>64657497
electromagnetic radiation

>> No.64657549

>>64657537
you can hear sound waves sound through walls. you can't even hear wifi.

>> No.64657557

>>64657497
It doesn't. The walls go through the wifi.

>> No.64657563

>>64657537
Pressure waves in the air that cause the walls to move, which in turn causes air to move in the next room which hits your eardrums

>> No.64657596
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64657596

...how do you know the simulation is simulating WiFi correctly?

>> No.64657604

How can a train of men run through your mom!?

>> No.64657627

>>64657497
If you are delusional your call will be transferred to the mother ship

>> No.64657642

>>64657497
Same way you can see bright things when you close your eyes

>> No.64657663

>>64657497
how can light go thrpugh glass ?

>> No.64657719

>>64657497
It's a ghost.

>> No.64657740
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64657740

>>64657719
My router is haunted?

>> No.64657741

>>64657537
Can wifi not go through soundproofed walls, then?

>> No.64657766

>>64657557
This. Earth rotating and what not.

>> No.64657801

Same way you can shine a light through paper.

>> No.64657836
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64657836

>>64657497
How does bluetooth work through jeans?

>> No.64657842

When radio hits a wall some is scattered, some absorbed and some transmitted. The material properties of a wall at the molecular level determines how it reacts with different frequencies of EM radiation.

>> No.64658946

>>64657497
Wi-Fi is an electromagnetic wave, just like visible light. Due to its band range, it can pass through walls, much like visible light can partially pass through your thumb when you press it on flashlight.

If your eyes could see wi-fi range, it would appear like just another light-source. Since it behaves like light, it passes through walls and even reflects on certain materials. For example, just like seeing light with your eyes scattering from a distant hallway, you would have wi-fi signal if you stood and saw that "wi-fi light".

>> No.64658959

>>64657549
You could, if you could hear gigahertz frequencies

>> No.64658975

ELI5

>> No.64659016

>>64657596
this. there is no wifi, only the effect of wifi

>> No.64660410

>>64657842 >>64658946
This. You may note that 2.4GHz tends to go through walls (which is bad, especially for multi-tenant occupancy or multiple rooms as you only have 3, tops 4, distinct channels that don't collide with each other) better than 5GHz 802.11a bands. IEEE 802.11ad uses 60GHz millimetre waves which are strictly line-of-sight only.

Exact details of EM attenuation, propagation and reflection in these bands are EXTREMELY complex.

>> No.64662435

>>64657497
how can ellen page go through walls? ellen page juggernaut spinoff when? i'll make the logo

>> No.64662450

>>64657497
Magic

>> No.64662684

>>64660410
so if i change myself to 2.4GHz i can walk through walls?

>> No.64662745

>>64657497
Just like the same as you can do it

>> No.64663958

>>64657497
how can fart go through my underpants?

>> No.64664002

because waves are generally contiguous

>> No.64664973

>>64657497
Dunno, how does your voice get through walls?

>> No.64664992

Same way sunlight goes through glass

>> No.64665013

>>64663958
Non-sensible chuckle

>> No.64665217

>>64657497
The same way a dick can pass through your anus.

>> No.64665339
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64665339

Why is a disc round but a disc drive is square?

>> No.64665867
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64665867

>>64657497
wormholes.

>> No.64665893

>>64657497
Because wifi bends over walls. It penetrates through cracks.

>> No.64665921

>>64657497
It doesn't. Wifi is like a bat, it detects the walls and curves around them.

>> No.64666003

>>64662684
you can penetrate through the walls better but wont have as much throughput at 5ghz. but on the other hand if you are 5ghz you can't penetrate through walls very good and thus your throughput is quickly negated.

2.4ghz = longer range, good for outdoor use.
5ghz = indoor only multimedia devices (game consoles).

>> No.64666078

>>64657596
Maybe this WiFi behavior was a temporary hack in the code but no one bothered correcting it.

>> No.64666085

>>64662450
How can magic go through walls?

>> No.64666156

>>64666003
To elaborate 2.4ghz is like a tank. it's strong and can smash through walls but it's not the fastest vehicle in the world.

5ghz is like a ferrari. it's built for speed. but it's structurally weak. so if it hits a wall it just dies on impact.

This is why 802.11n spec was invented. it uses part 2.4ghz and (i think) one 5ghz channel to do MIMO. So it's sort of like part tank part ferrari. The only problem is walls exist so the ferrari part rarely gets used.

>> No.64666197

Because your shitty poorfag hovel doesn't have a Faraday cage for every room.

>> No.64666219
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64666219

>>64657497
We covered this is the last /sqt/frogpost edition.

>> No.64666851

>>64657497
Government listening devices in your walls rebroadcast the signal on the other side.

>> No.64666888

Walls are an illusion.

>>
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