why high tension power line make noise?
337459
The high voltage and frequency in the power line makes the audible pulsing noise.
880537
Mine does that. I'll tell you why, too. Whenever you are about to receive a phone call or text message, the radio waves from the antenna become bent and distorted because of the magnets in the speakers. Therefore you have a three-burst buzz that sounds from the speakers.
103937
Static electricity is caused by friction. When the air is dry like in winter there is more friction.
455977
200 Hertz or any integer multiple thereof.\nSo, 400 Hertz, 600 Hz, etc.. would cause it to resonate.
77955
a signal to a device that makes a noise
230920
Not at all.\nA Wi-Fi router won't emit any noise at all. It uses the same frequency as a wireless phone (2.4G).\nIf you get a high pitched sound you have one of two issues:\n1. A loose cat5 connection.\n2. A bad circut board in the router.
523729
It all depends on what is actually making the noise.  See if you can figure it out where it is coming from.\n\nIf it is something like a CPU fan, or the PSU fan, then it could just be that they have some dirt in them and it's wearing down the bearings.  IF it's the HD, then start worrying, coz that could mean that it's on its way out.
24372
It depends on the kind of heater it is. The most common way would be to reduce the speed of the fan, if possible. If it doesn't have a fan and the noise is from water or steam going through the pipes, then, a) there could be air in the system that's not supposed to be there, or b)the water or steam could be going through a small pipe or partly closed valve so fast that it makes a lot of noise.
248658
static grounding I believe
252364
I had the same thing happen.  It was the wiring in my speaker cord.  You might need new speakers.
616514
Generating static electricity.
697947
when it makes that noise your putting too much voltage thru a capasitor if you do it long enough it will explode you probably have bulged caps
276221
It's not dust, although that is a contributing factor.\n\nAll computers, desktops and laptops, hum to a certain degree. The higher performance it is, the more quiet it is (often). The humming you hear is your computer working, and as it works it gets hot, which makes a little fan go off to prevent fires in your computer. If your laptop has been on a while then it will almost certainly hum, also if you're running high-memory processes like games or big files. That goes double if your laptop is older or entry-level.\n\nWhat you can do is: \n- buy a new laptop. (don't reccommend, although you can get one for $600 from Dell)\n- put the laptop on a soft, sound-absorbing surface (think placemats, blankets, mousepads, anything like that, the thicker the better)]\n- upgrade RAM to make things easier on your laptop. You can buy 512MB of RAM for about $49, make sure you know the right kind to buy and the right brands (I reccomend Kingston Technologies).\n\nhope i helped.
1103734
too dangerous and noisy
258656
Believe it or not, if that speaker is near your computer, your monitor or another electronic device, try moving it away from the other device.\n\nIt may be that you have RF (radio frequency) interference that is causing the problem.
1153628
Wireless internet? Yes, it could interfere. Speakers? Yes, it'll make odd static type noises from any speaker that's near it. Never have figured that one out. Monitors? Yes, it'll interfere with a crt monitor, make it all wavy for a second, kinda fun to watch. The rest of your computer? No, nothing. And none of that stuff is doing any damage to anything, it's temporary interference
1092395
it is LOUD, and even if your house isn't damaged, everything is vibrating.\n\n\nIt sounds a lot like a train going by right outside your window.\n\nAnd afterward, there are tree limbs and odd things lying everywhere.