Joule Thief 101

[wattsup]

So you guys think that for the sake of a wine glass and a furty little car speed all this junk being thrown around is fully warranted. This is indeed a sad day to be an OUer when you have to vent so high to protect what - some dreamstate resonance crap and a car whizzer. hahahahaha

Bad boys.

@MH

Nice try but your answer to my question failed miserably showing that you cannot comprehend what is at stake here, which is understandable since your internal drive for OU devices is set to "totally impartial". So we will just wait before we can talk about resonance. Anyone talk before my question is answered is just blowing in the wind.

@tinman

Just get back on your bench already where it counts. Why the hell are you talking to @MH about anything OU anyways. You cannot get water from a rock. Get it though your heads already. These EEers are stuck even worst then you guys. Great for textbook Standard EE questions but never never discuss or ask their opinion on anything OU.

@all

I don't know. I think you guys are totally lost in space. No map, no plan, no possible light at the end of the tunnel, just lost in a black hole called Standard EE where all your questions will never be answered, no possibility  for true growth and destined to repeat the same old same old. So good luck with that. I asked one little itty bitty question promising to then tell you guys what resonance is and not a twich, not a sign, OK, so advance on your own. hehehe

wattsup

[MileHigh]

Brad:

Karma is a bitch and you are mostly mindless and useless trash talk.  Mr. "resonance researcher" can't explain how a bloody wine glass resonates in his own words.

Question:  How does a wine glass resonate, what is the mechanism?
Answer:  You hit it at its resonant frequency and it starts to resonate.

You are a bloody genius Brad!

Watsup:

I will listen to what you have to say about the wire and will then respond in turn.

MileHigh

[Pirate88179]

Oh bugga.

I am going to have to agree with you MH on this one.
Sound needs a medium to travel in,as it is a mechanical wave,and as a vacuum is void of any medium,then the sound wave cannot propagate.

Sound can be transmitted across a vacuum,but that is via way of electromagnetic field's,and not sound waves them self.

I also see no reason a wine glass will not resonate in a vacuum,we just wont hear it do so.


Brad.

In space....


          No one can hear you scream.




Now we know why.


Bill

[ramset]

So sound passing thru a vacuum and coming out the other side as a sound again..
What's that ??

Can,t find Smokey 's original post with all the movement here.

Although I am looking forward to MH's thesis on developing a huge standing wave in a 2 stroke 24hp  3 cubic inch engine
With no resonance !

He says impossible (resonance plays no part in an ICE ) it is not in his frame of reference...
So it must be  a lie ?

A man of impeccable character and moral fiber....

[sm0ky2]

In space....


          No one can hear you scream.




Now we know why.


Bill

"sound" doesn't pass through space, rather the wave that was created by the sound propagates.
just as radio frequency waves propagate through space in the audible spectrum can be picked up by a microphone.
"sound" doesn't pass through the air.
rather, the disturbance that caused the audible frequency range vibrations, interacted with the air to cause the sound. Whether it be a radio wave, or the vocal chords of a chickadee.

sound is just the experience of vibration, change in pressure caused by the wavefront, as it propagates.
what is required to change between the two, "physical sound" and its' radio frequency equivalent:
is a solid but movable interface.
we do this with speakers and microphones all the time. it's nothing new or strange.
we already knew that soundwaves pass through space, we just had not proven it in a laboratory setting until 2009.

the physical interface incurs a moment of inertia, as the wave energy is transferred into momentum, applying pressure against the atmosphere. This process slows the wave down.
Once "sound" is traveling through the air, and is once again removed from the medium, it does NOT instantly start traveling at the speed of light again. It travels at a speed slightly above that at which it was already propagating.

pesky little "massless" particles.... when you slow them down, you need energy to speed them up again....