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Re: "Nachos" Discussion

Posted: Mon Oct 26, 2009 9:38 pm UTC
by Enira
phillipsjk wrote:No, it is not a toaster oven, it is a microwave.
The reason microwave ovens disrupt WiFi is that they both use the same unlicensed 2.4GHz spectrum. The reason that spectrum is unlicensed is that it is absorbed by water, so does not travel far.


Technically speaking:
- Microwave ovens can only leak electro-magnetic radiation if the shielding isn't enough. When does this happens? With old microwave ovens over the age of ~8 years.
- Theoretically the leaking of this radiation would probably only disrupt 802.11b. 802.11g uses OFDM (Orthogonal frequency-division multiplexing) which is rather strong so my guess would be a microwave operating at a center frequency of 2450 MHz with a sideband of 0Hz wouldn't cause a lot of damage to 802.11g.

Did the testing one month ago for 802.11b and 802.11g and I wasn't able to produce any disruptions. But the microwave ovens I tested where 6 years or newer. Apparently a colleague of mine did eventually succeed in disrupting 802.11b by using a really really old microwave used by a granny living next door.

glasnt wrote:I didn't realise magical nuking machines interrupted wireless. I only thought it was bluetooth-remote controlled surround sound systems. We had that issue once, but it's ok, because the PCs were LAN connected, and the Macs were having the issue.
Bluetooth, metals, water and human interference cause the worst problems. Bluetooth just shatters anything in the 2.4GHz frequency. It's selfish, doesn't cares what other devices do and wants to use a pseudo-random part of the spectrum for short bursts of time (shifts frequency 1600 times a second). Hence it causes major collisions in the RF spectrum. Luckily the little fucker is limited in power and range.

The GeoCities joke is awesome by the way.

Re: "Nachos" Discussion

Posted: Mon Oct 26, 2009 10:09 pm UTC
by The Scyphozoa
videogamesizzle wrote:"Oh, let's see the new XKCD comic today and JESUS FUCK CHRIST WHAT IS THIS"
Kinda took me by surprise, there.

Awesome comic, as well.

I thought it was something on my end, because I checked xkcd today on a school computer and all the computers were acting weird today. (They even made alarms go off in every room.)

Re: "Nachos" Discussion

Posted: Mon Oct 26, 2009 11:41 pm UTC
by phlip
Cloud Walker wrote:The "Under Construction" worker looks like he's eating whatever he's digging.

It's not dirt - it's pudding.

Re: "Nachos" Discussion

Posted: Tue Oct 27, 2009 1:48 am UTC
by littlebuddy
catfight!

Re: "Nachos" Discussion

Posted: Tue Oct 27, 2009 7:14 am UTC
by phonon266737
Nacho produced via black-body radiation and convection are far suprior to those heated only via microwves, anyway. Why is he doing this!?

Re: "Nachos" Discussion

Posted: Tue Oct 27, 2009 7:23 am UTC
by Kalos
Contrived dialogue AND randall's megan fetished prefect women? delightful.

Re: "Nachos" Discussion

Posted: Tue Oct 27, 2009 3:47 pm UTC
by ManaUser
SpringLoaded12 wrote:Ponytail girl is a total noob, can't even score a headshot against Megan without resorting to d/c'ing her? She probably camps, too ("It's a legitimate strategy!").

Well it's no wonder, she's got her mouse and keyboard at different levels. I don't see how anybody could play well like that, it looks very uncomfortable.

Re: "Nachos" Discussion

Posted: Tue Oct 27, 2009 8:17 pm UTC
by meat.paste
Now that the blinking geocities html is gone, can anyone explain what the new text at the bottom of the page is about? In tiny font is the following:

We did not invent the algorithm. The algorithm consistently finds Jesus. The algorithm killed Jeeves.
The algorithm is banned in China. The algorithm is from Jersey. The algorithm constantly finds Jesus.
This is not the algorithm. This is close.

WTF? I did a search of the fora and didn't find the phrase.

Edit: Never mind. I should have searched the interwebs.

Re: "Nachos" Discussion

Posted: Tue Oct 27, 2009 9:48 pm UTC
by Benson
phillipsjk wrote:The reason microwave ovens disrupt WiFi is that they both use the same unlicensed 2.4GHz spectrum. The reason that spectrum is unlicensed is that it is absorbed by water, so does not travel far.

Not really, although that misconception is very common. The licensed bands above and below the 2.4GHz ISM bands share almost identical propagation characteristics, as there are no resonances in the neighborhood. In fact, H2O absorption is quite low for 2.4GHz, and is dwarfed by O2. H2O only becomes significant around 10GHz, and increases to the first peak at 22GHz. There's a nifty graph at http://www.rfcafe.com/references/electrical/atm-absorption.htm.

The reasons why any ISM band is exactly where it is are most likely historical (i.e. which neighbouring bands were previously allocated) and/or related to desirable properties of licensed bands allocated at the same time (e.g. 3:1 resonance with existing bands for efficient dual-band antennas), and while I don't know for certain the circumstances surrounding the 2.4GHz ISM band, it's absolutely certain that it wasn't because it's a magically useful (for cooking) or useless (for long range comms) frequency.

Re: "Nachos" Discussion

Posted: Tue Oct 27, 2009 11:02 pm UTC
by GiantSnowman
Any board game you play against someone who's having a phone conversation featuring the sentence: "Of course I love you honey." is guaranteed to result in victory. That might be a hard one to pull off intentionally, but making the doorbell ring for an online opponent at the right moment sounds feasable.

Re: "Nachos" Discussion

Posted: Wed Oct 28, 2009 5:18 am UTC
by Steve the Pocket
That stuff about "the algorithm" has, by the way, always been part of the site as far as I remember.

I looked at this again, and realized the words "BOOM! HEADSHOT" are coming from the computer... is she playing some weird game that's programmed to play that sound clip whenever someone gets a headshot? Or is she just on a modded server? Or, perhaps, does she have one of those sound systems installed and is activating that clip herself? Is the canoe wood, or aluminum?!? These questions demand answers.

Re: "Nachos" Discussion

Posted: Wed Oct 28, 2009 6:19 am UTC
by Eikinkloster
Whyareall wrote:Little-known fact: Wi-Fi stands for Wireless Fireless.
I feel absolutely terrible for whoever at Yahoo was given the job of pressing the DELETE button for millions of webpages.


I didn't get these two: Wireless Fireless: is this a pun or an actual alternate meaning for Wireless Fidelity?
And where did the reference to Geocities come from? I see no reference to it on the comic whatsoever...

Re: "Nachos" Discussion

Posted: Wed Oct 28, 2009 6:53 am UTC
by divisionbyzero
Whyareall wrote:I feel absolutely terrible for whoever at Yahoo was given the job of pressing the DELETE button for millions of webpages.

Yeh, and imagine how many checks they did to make sure they had the right servers - oh look, Yahoo's down, hmm... arrrggghhhhhh!

Or maybe the old classic, they ask a colleague to check what they're doing, and as soon as they hit delete, the git colleague shouts "No wait!" and they almost have a heart attack. I've been that git many times.

As for the wifi, been there, done that. Not coz of a microwave, just lags so much you get pwned. Lan is the only way.

Re: "Nachos" Discussion

Posted: Wed Oct 28, 2009 7:41 am UTC
by scarletmanuka
Steve the Pocket wrote:Is the canoe wood, or aluminum?!?

VeggieTales reference makes me happy :)

Re: "Nachos" Discussion

Posted: Wed Oct 28, 2009 12:56 pm UTC
by BioTube
Eikinkloster wrote:And where did the reference to Geocities come from? I see no reference to it on the comic whatsoever...
Randal redid the site for a day.

Re: "Nachos" Discussion

Posted: Thu Oct 29, 2009 6:12 am UTC
by Cynical Idealist
Eikinkloster wrote:I didn't get these two: Wireless Fireless: is this a pun or an actual alternate meaning for Wireless Fidelity?

As linked earlier in this very thread.

Re: "Nachos" Discussion

Posted: Fri Oct 30, 2009 1:29 am UTC
by Stripy-Artist
It's only a matter of time before they invent a Linux command that makes you turn a microwave at an online opponent's house. :lol: