169db = heart stop?

[denim 5,000+ posts]

nice diagram

 

[94yodapickup 10+ year member]

erikvw an savant have yall took classes on this stuff cause i dont know near as much about this stuff as yall do but im only 16 though but dang im in awe of the things yall are sayin!! keep the educated answers flowin so stupid people like me can get smarter!!! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[awalbert88 10+ year member]

The thing that causes you to "stick" to the source is because the electricity causes your muscles to contract, just like the electrical signals from your brain. Have you ever electrocuted yourself with a 110V source? I've done that a few times, though only through one arm (thank God), so it never got to my heart. But I could feel it 'flowing' (right term?) up my arm, and my arm began to contract, which actually caused it to pull away (the source of the electricity was a PC power supply that I was repairing), and I grabbed the cord with my other arm to yank it away. Hurt like a ***** for a few days, and I learned my lesson from that - unplug the **** thing, and don't rely on the main switch, because power still comes through that cord at some location!

Anyway, I'm still not totally convinced that sound waves are strong enough to cause the heart to stop (it's a **** strong muscle) in a human. At least not at the pressure levels attainable in 1ATM. Afterall, the pressure of the sound must travel through multiple layers to reach the heart, and that reduces its strength a bit. Try putting your hand around an SPL mic sometime and see how it affects the db readings.

 

[Savant 10+ year member]

Originally posted by awalbert88 The thing that causes you to "stick" to the source is because the electricity causes your muscles to contract, just like the electrical signals from your brain. Have you ever electrocuted yourself with a 110V source? I've done that a few times, though only through one arm (thank God), so it never got to my heart. But I could feel it 'flowing' (right term?) up my arm, and my arm began to contract, which actually caused it to pull away (the source of the electricity was a PC power supply that I was repairing), and I grabbed the cord with my other arm to yank it away. Hurt like a ***** for a few days, and I learned my lesson from that - unplug the **** thing, and don't rely on the main switch, because power still comes through that cord at some location!

 

Anyway, I'm still not totally convinced that sound waves are strong enough to cause the heart to stop (it's a **** strong muscle) in a human. At least not at the pressure levels attainable in 1ATM. Afterall, the pressure of the sound must travel through multiple layers to reach the heart, and that reduces its strength a bit. Try putting your hand around an SPL mic sometime and see how it affects the db readings.

Yeah, the voltage is only part of it.. the amperage is what distrupted your arm (or so it seems to me since voltage is technically potential, isn't it? and amperage is force? I get that crap confused).. In any event, you got damm lucky.. I'm guessing you had your arm touching the case? so that the current had a back route before you thorasic cavity?.. I bet that hurt.. can't even immagine..

I almost mentioned something about the heart being strong... then I remembered that the muscle that controls your pinky is actually the strongest muscle in your body.. in comparison, if it was as big as your thigh muscles, you could jump 10 stories? 100+ ft? IIRC.. Sure the heart has a lot of endurance.. and is pretty strong considreing it's moving something close to 7 liters (about that?) of blood.. But, it's not 'that' strong.. I mean, you could grab a heart with your hands and crush it.. how strong can that be? It does a tremendous amount of work over time, but I'm under the impression (once I stop and think about it) that the heart is a pretty wussy muscle overall (you could stand on a heart and crush it.. stand on my chest and I can probabaly still breate (diaphram).. stand on my arm or leg and I can leverage myself up..)... I don't think it would take much to hold it still.. Part of why it's under so much bone?? *shrug*

Again, we won't reall know until we do a test (and end up in prison for it //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif )

EDIT: the whole reason I belive this? I have a hard time breathing once the volume gets to a certian level.. shouldn't be much more than that to render all muscles useless.. or at least that's the way it looks to me.. *shrug*

 

[Savant 10+ year member]

Originally posted by 94yodapickup erikvw an savant have yall took classes on this stuff cause i dont know near as much about this stuff as yall do but im only 16 though but dang im in awe of the things yall are sayin!! keep the educated answers flowin so stupid people like me can get smarter!!! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Never fear my friend... This is physics 101 and entry level Biology and electronics.. Most of this stuff I knew before I got out of high school.. all the details come from 'higher education'.. most of which I can't recall //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

And, you aren't stupid cause you don't know this stuff.. the 'technical' term would be you are 'ignorant' of this info (but that's SUCH a negatively connotated word.. Nieave (i can't spell //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif ) is probably more accurate.. but certianly NOT stupid).. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[erikvw]

Originally posted by Savant Yeah, the voltage is only part of it.. the amperage is what distrupted your arm (or so it seems to me since voltage is technically potential, isn't it? and amperage is force? I get that crap confused).. In any event, you got damm lucky.. I'm guessing you had your arm touching the case? so that the current had a back route before you thorasic cavity?.. I bet that hurt.. can't even immagine..

I've missed so much since Friday //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Put my new system in this weekend and now have a huge headache. Bottom line to the whole voltage/amp argument is that amps kill you, not voltage although the higher the voltage the lower the amperage needed to be fatal I believe. And as far as any power from your wall, your circuit breaker *should* keep you from being killed although I think the whole "hair dryer in the bathtub" will still kill you because of the high power all it takes just to run the thing. I think most are rated at about 1500 watts and the 1/10 of a second that the current hits you is all it takes to shut down everything.

Originally posted by Savant I almost mentioned something about the heart being strong... then I remembered that the muscle that controls your pinky is actually the strongest muscle in your body.. in comparison, if it was as big as your thigh muscles, you could jump 10 stories? 100+ ft? IIRC.. Sure the heart has a lot of endurance.. and is pretty strong considreing it's moving something close to 7 liters (about that?) of blood.. But, it's not 'that' strong.. I mean, you could grab a heart with your hands and crush it.. how strong can that be? It does a tremendous amount of work over time, but I'm under the impression (once I stop and think about it) that the heart is a pretty wussy muscle overall (you could stand on a heart and crush it.. stand on my chest and I can probabaly still breate (diaphram).. stand on my arm or leg and I can leverage myself up..)... I don't think it would take much to hold it still.. Part of why it's under so much bone?? *shrug*

 

Again, we won't reall know until we do a test (and end up in prison for it //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif )

 

EDIT: the whole reason I belive this? I have a hard time breathing once the volume gets to a certian level.. shouldn't be much more than that to render all muscles useless.. or at least that's the way it looks to me.. *shrug*

I would have to guess that there is a qualifier on the pinky muscle thing that it's the strongest for it's size? I am pretty sure that's what you were getting at and I think the real arument over the strength of the heart mucsle would be how hard can it contract. Of course you could crush it and stop it from beating, it has no mechanism for expansion as far as I know, only the power to contract to pump blood. I'm not sure what the whole 120 over 80 measure of blood pressure means but I'm sure you could figure how strong the heart is by figuring out how much liquid is moved how far thru how much resistance etc. I'd be willing to bet it's stronger than most would guess.

Side trivia: I'm told the strongest muscle in the body is the jaw. Another note: I'm no super smart guy, I just work in a building with a bunch of them //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

One more:

I think the reason you have a hard time breathing in a very loud auto would be due more to pressure levels than frequency and volume. I realize these two are intrinsically linked though and you really can't have one without the other. Basically someone punching you in the back will make breathing difficult as well, I'm still not seeing how the freq could hurt anything, we're exposed to all sorts of freqs outside our perceptable range all day every day and as far as I can tell I'm no worse off for it.

 

[Savant 10+ year member]

Originally posted by erikvw I think the reason you have a hard time breathing in a very loud auto would be due more to pressure levels than frequency and volume. I realize these two are intrinsically linked though and you really can't have one without the other. Basically someone punching you in the back will make breathing difficult as well, I'm still not seeing how the freq could hurt anything, we're exposed to all sorts of freqs outside our perceptable range all day every day and as far as I can tell I'm no worse off for it.

Actually, the loss of ability (for that instant) when you are hit is because your chest (thorasic cavity) is being compressed which expells air.. When you land on your back and can't breath, that's from the diaphram being tramatized.. it can't work like it should for a few seconds.. I immagine part of that is from the pain as well, overloading the nervous system in that area a bit, the brain might shut it all off with the initial impact, then slowly turns stuff back on?

As for not being affected by the waves we don't 'hear'.. we don't know for a fact that there are no problems.. I mean, they are saying Cell Phones increase the risk of brain tumors, etc.. microwaves will only be percieved as the water in your body heats up and kills you, etc..

 

[DBfan187 5,000+ posts]

Tell us more about the "BROWN NOTE", the one that makes you Shit your pants when you here it!!!!!!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[DBfan187 5,000+ posts]

Tell us more about the "BROWN NOTE", the one that makes you Shit your pants when you here it!!!!!!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Hey dipshit! It's spelled HEAR! H-E-A-R!

I'm still looking for that frequency!

*awaits flames like: OMFG! LOOK AT THE DATE BEFORE YOU POST!*//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[PV Audio 5,000+ posts]

no i do it all the time.

 

[Acidburn 5,000+ posts]

stop being such a dipshit DBfan : )

 

[DBfan187 5,000+ posts]

stop being such a dipshit DBfan : )

don't make me neutralize you:silly:

 

[Acidburn 5,000+ posts]

neutralize?

 

[supa_c 5,000+ posts]

hey is that list still being updated:smash:

just kidding

 

[DBfan187 5,000+ posts]

hey is that list still being updated:smash:just kidding

It will be until packerfan decides to update it!

Unless you can? I'm not any good at PhotoShop!