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Some rather insane/stupid experiments involving a 200W stereo., My Mad Scientist side.
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A quick word of warning: Some of these experiments which I have done can prove dangerous, in addition to possibly damaging equipment, there is a high risk of injury, death, electrocution, or fire. I do NOT recommend anyone attempt to repeat these experiments. I do some EXCEEDINGLY STUPID THINGS in these logs.


Electric motor + high power stereo:
Connected a vibration motor from an old game controller to my stereo:
Expected results: failure of the motor due to excessive overvoltaging. (We are looking at around 200 WATTS being ran through a 4-volt motor.) Determining that the audio signal being output is a form of DC power, I expected the motor to try to run.

Test 1: Direct connection + Turn up volume until result happens.
Result: Motor tried to run as expected, at high volume of the stereo, it acted as a (Rather terrible) speaker.
Sound was distorted, but sound could be heard coming from the motor, matching audio being played.
Full rotation was not achieved.

Test 2: place motor in teeth until results noticed.
Result: At about 1/3 volume, audio could be heard, but not after releasing from teeth. It would seem that teeth are able to transfer vibrations through the jaw, and skull, which can still be picked up by the ears. Audio was better than the previous test, but was still rather crummy.

Test 3: Max out volume setting while listening to "Call of Cthulu" by "Metallica"
Motor was still unable to make a full rotation of the hammer. However, it did vibrate far differently than the standard vibration system used in Game controllers. I wonder if a concept such as this could be utilized to allow for more realistic feeling vibrations, by running sounds through the vibration unit, rather than simply spinning a motor.
Motor suffered a critical failure during this test. as it began to smoke.

Theory: It's likely that this concept works because electric motors, and speakers contain similar components.
Those being Copper wire, and magnets. However, an electric motor is not designed to handle audio signals, hence why this experiment ended with expected failure of the motor.

Additional: same experiment, but to a vibrating office chair.
This turned out odd, It was still able to process distorted audio, Certainly an idea to feel the music, and a project such as this may even help the hearing impaired listen to music.
Experiment cut short, as I had other plans for the office chair.

High powered stereo VS Nite Shadow.
So, in case you hadn't guessed, I tempted fate with this one.

Test 1: Max volume, and grab bare wires.
Result: A mild jolt felt in time with the bass impacts of the song playing. Muscles tried to contract with each impact.

It would seem that there is just enough amperage to penetrate the skin, and jolt the muscles, and nerves.
If my hands had been wet, this likely would have hurt a lot.

Potentiometer connected directly to stereo.

Test 1: No result.
Well, I should have seen this coming. All a potentiometer is, is a variable power resistor, no matter how it is connected, nothing strange is going to happen.

Controlled short circuit of bare wires.

Test 1: Huh, the breaker works!

Theory: The breaker switch did it's job, and prevented the short circuit from back feeding power into the system, which would cause permanent damage to the unit, and/or cause a fire.

Stereo + LED bulbs.

Test 1: a standard LED bulb:
LED lit up, and seemed to be timed to the bass impacts, but seemed to get a lower more continuous flow of power.

Test 2: An infrared LED bulb:
This caused some havoc! Both my TV's came on an unknown menu showed up as well, My roku box started up youtube with the interface jumping all over the place, My craig mini amp turned on and began cycling random radio stations.,my VCR/dvd player Switched to VCR mode and erased it's configuration. No damage done to anything affected.
Replicating results has been unsuccessful.

Theory: I have no idea how to explain that 2nd test.
It must have been luck of the draw, but holy crap was that weird!

Test 3: An incandescent Christmas tree light.
Light exploded, No sign of bulb remaining. Right hand thumbnail was scorched.

These experiments are ongoing, there were also a few left out due to lack of interesting results.
More to come as I turn stuff up.

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That was quite a fascinating set of experiments! I think my favorite is the stereo connected to the Christmas lights. For some reason, that one really cracked me up.

If you're trying to transmit sound through your bones, try placing the speaker against the bone directly below your earlobe. A lot of hearing tests use this technique, especially when doctors are checking for conductive hearing loss.
Course clear! You got a card.
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