We were growing increasingly desperate for a glimpse into the true heart of nature. As time went on and our involvement deepened, it became obvious that we could no more reject the shaped steel of material civilization than we could abandon the trees and crevices that made up our home. After all we had been through, it was almost too much to bear. But in times such as these, with fires burning on the horizon at night, we needed the help of all-conquering science.
We turned to the aid of senior research advisor Dr. Dylan Breitkreutzen, an old friend from before the war. He filled us in on the basics of science, and allowed us to experience a phonograph recording of our very souls, reproduced at the bottom of this page.
Dr. Breitkreutzen: “We have a bunch of water and proteins and molecules in our body and they all have hydrogen in them. Hydrogen is basically just a proton, and protons have a quantum spin of 1/2 – they spin and they’re electrically charged. Any moving charge creates a magnetic field. So basically your body is made up of tiny magnets. We characterize these magnets by magnitude and direction. Basically it’s characterized by a vector, which means it looks like an arrow.
Most of the time in your body, the protons are very unorganized. All the little arrows that determine how the protons’ magnetic fields interact are all over the place and the magnetic fields cancel each other out, so overall they don’t actually amount to any magnetization. That is why your hand doesn’t stick to a magnet when you pick one up.
But when all these little magnets in your body are exposed to a very homogenous high-strength magnetic field, they have a tendency to align themselves in parallel to that field. So now all these little magnets are lined up in the same direction, they no longer cancel each other out, and collectively they make a magnetization vector for the whole piece of tissue. That’s what creates a magnet, is having order.
So the magnetic field is lined up with the direction of the protons’ magnetization vector, and it actually rotates around the axis of the magnetic field, which conventionally is called the z axis. So it doesn’t look like much in the stationary situation. But if the magnetization vector was to be at an angle to the z direction then it undergoes motion called precession.
Another magnetic field causes the vector to move out of its equilibrium position, so you knock it down into what we call the transverse plane. Then, since it’s at a different direction from parallel, it starts precessing in that plane. Since resonant frequency is proportional to the magnetic field, we can figure out the resonance from that. So at one tesla it’s 42.6 million cycles. It’s a lot of cycles. It’s called the Larmor frequency. I imagine it’s named after somebody.
So we have a vector, and we’ve knocked it down to the transverse plane and it’s rotating at the resonant frequency. If we put a coil perpendicular to that plane, there will be flux from the rotating vector through the coil which will induce a current, and that current is also at the resonant frequency. It’s a similar principle to how a loudspeaker works. That’s how we get the signal out, and that becomes our signal.
The magnetization vector rotation and the signal coming out is 100 megahertz. What happens to the signal – in the ideal case if we assume a lot of things – is it just rotates forever, producing a constant signal that matches the vector. In essence, the signal is a sort of electro-resonant fingerprint of your body at a certain time and place. You could think of it as a photograph of your cosmic vibrational essence. In my own research, I have found that by filtering the signal through the correct apparatus it can be reproduced as an audible tone. This tone is theoretically the pure cosmic sound your body makes as it resonates in the correlative phase dimension.
But in reality that is not the case. A couple effects called relaxations effects occur, which make the signal reduce over time. There are a lot of different reasons why things relax, but all we need to know is that eventually the vector moves from the transverse plane and goes back to equilibrium.
Another thing that happens is dephasing within the transverse plane. Because the field isn’t quite homogenous, different vectors in an area will experience a different magnetic field. They resonate at different speeds and they rotate different speeds, so one will go in the middle and the other two on either edge will spread out on the transverse plane.
So that occurs from just random things in the field, but it also occurs from random collisions in the body. We know that different tissues have different relaxation times. That’s how we get images basically. So say we’re waiting for T2, which is longitudinal relaxation. Contrast is dependent on T2. We know tumors have a lower T2, so any bright spots might be tumors. Obviously there’s a lot of biology that has to go into that.
That’s basically it, other than that it’s a matter of localizing the audio through a set of bandpass filters and translating it to English so the audience can understand it when it’s played.”
Unformatted resonant waveform of Larmor precessing magnetic vector: