Question!!!

Talk about anything in here.

Postby Technomancer » Wed May 11, 2005 3:26 pm

Mithrandir wrote:...where IS that from...?


The Simpsons.
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Postby Mr. SmartyPants » Wed May 11, 2005 4:20 pm

also... when my moms cellphone is in her car... itll sometimes distort the radio... and my phone makes my tv make a weird sound at times
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Postby Technomancer » Wed May 11, 2005 5:00 pm

Neat, I expect it's the same thing though since an electric current can be induced by a changing magnetic field. If your TV speakers are sensitive enough, an induced current could also be audible, or alternatively the induced currents are first amplified and then heard from the speakers. I suppose it's also possible that the phone's initial transmission is at a much higher power level or bandwidth to begin with and then settles down when it has a sense of its environment. This could also induce electric currents, but at a very low level (although I don't think that would be significant enough). It would be broadcasting in the microwave range so it's entirely feasible for the right power level. I have some friends who'd know better than I about that though- my work has not been on telecommunications while theirs has been. I'm afraid EMI/EMC and the associated regulations aren't my forte either.
The scientific method," Thomas Henry Huxley once wrote, "is nothing but the normal working of the human mind." That is to say, when the mind is working; that is to say further, when it is engaged in corrrecting its mistakes. Taking this point of view, we may conclude that science is not physics, biology, or chemistry—is not even a "subject"—but a moral imperative drawn from a larger narrative whose purpose is to give perspective, balance, and humility to learning.

Neil Postman
(The End of Education)

Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge

Isaac Aasimov
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Postby Orange Kitten » Thu May 12, 2005 11:06 pm

Mr. SmartyPants wrote:also... when my moms cellphone is in her car... itll sometimes distort the radio... and my phone makes my tv make a weird sound at times


She got Nextel? All Nextel phones do that because of the frequency.

I have Nextel and it's great because right before my phone rings, any speaker nearby (about 90% of the time) will make quick popping sounds. So I reach for my phone about a second or 2 before my phone even makes a sound.

Correct me if I'm wrong but Nextel uses a slightly higher frequency than other phones?
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Postby Slater » Thu May 12, 2005 11:20 pm

it's possible. Why these frequencies have affects on other wireless audio equipment, I am not entirely sure. Certainly the equipment is picking up the frequency, although not correctly. Possibly the carrier signal is actually the same frequency as other devices, but the sound frenquency is encoded in a way that only the phone can understand...?

It really is something I've wondered about. I work in a sound board, and when we're running wireless equipment, I can tell when someone's cellphone is turned on when they're on stage or back near the booth... but not when someone in the crowd has one. observation of this would tell me that the interferance of the waves caused by the two devices are just right so that the reciever picks it up enough to make some strange noises. But what a fun physics experement that I have yet to do! *ponders doing it with physics class*
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Postby Mr_Anderson » Thu May 12, 2005 11:20 pm

Mr. SmartyPants wrote:why would you have to cool off your n64?


when i play on it for a long time, it like get super hot. its kinda weird.
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Postby Arbre » Thu May 12, 2005 11:46 pm

Mr. SmartyPants wrote:also... when my moms cellphone is in her car... itll sometimes distort the radio... and my phone makes my tv make a weird sound at times

When my cell phone was about to ring, it made my TV kinda buzz, almost pop. So if I was playing a video game, I'd have maybe half a second to pause the game and grab the phone. I figured that the TV was cheap enough that any potentially "harmful interference" =p wouldn't really be worth moving my phone from its usual resting place.

It did that when the TV was turned off, too.

I don't have it near a TV now, though.
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Postby Ren_sama » Thu May 12, 2005 11:51 pm

Mr_Anderson wrote:when i play on it for a long time, it like get super hot. its kinda weird.

Mine does that too!
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Postby Arbre » Fri May 13, 2005 12:00 am

Ren_sama wrote:Mine does that too!
The N64 manual says that's normal, I think. Or maybe that's the GCN manual.

Either way, one of those two is fine when it's warm. ^_^

50/50 chance of it being safe then, huh? =p
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Postby Mr. SmartyPants » Sat May 14, 2005 5:32 am

in our house, before the phone rings, theres a little beeping near my phone in my room

and no her phone is a motorola phone, service from cingular
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Postby Mr_Anderson » Sat May 14, 2005 2:21 pm

o yeah, when i turn on the fan, the cd player, the big kind, make this popping noise and like the screen "jumps"
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Postby Slater » Sat May 14, 2005 7:01 pm

that is due to a voltage drop across your house that happens for a moment and takes a moment to recover from. doesn't get much more complex than that, unless you wanna look at the numbers...
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