Programmed Reality

Ah yes, the good old 2nd Law of Thermodynamics. The idea that the total disorder of a system, e.g. the universe, always increases.  Or that heat always flows from hot to cold.  It's why coffee always gets cold, why money seems to dissipate at a casino, why time flows forward, why Murphy had a law, why cats and dogs don't tend to clean up the house.

Ultimately, due to this rather depressing physical law, the universe will die by "heat death," where it reaches a state of absolute zero, no more heat, no motion of particles.  Don't worry, that's not predicted for another 10^100 (or, a Googol) years.  But, I always wondered, is it always always the case, or can entropy decrease in certain circumstances?

Got a spare fortnight? Google "violations of the second law of thermodynamics."  Personally, I rather like Maxwell's idea that it is a statistical argument, not an absolute one. "Maxwell's Demon" is that hypothetical device that funnels hot molecules in one directions and cold ones in the opposite, thereby reversing the normal flow of heat.  Could a nanotech device do that some day?  Yes, I know that there has to be energy put into the system for the device to do its work, thereby increasing the size of the system upon which the 2nd law holds.  But, even without the demon, aren't there statistical instances of 2nd Law violation in a closed system?  Not unlike the infinitesimal probability that someone's constituent atoms suddenly line up in such a manner that they can walk through a door (see recent blog topic), so could a system become more coherent as time moves to the future.

What about lowering temperature to the point where superconductivity occurs?  Isn't that less random than non-superconductivity.  One might argue that the energy that it takes to become superconductive exceeds the resulting decrease in entropy.  However, I would argue that since the transition from conductive to superconductive occurs abruptly, there must be a time period, arbitrarily small, during which you would watch entropy decrease.

There are those who cite life and evolution as examples of building order out of chaos.  Sounds reasonable to me, and the arguments against the idea sound circular and defensive.  However, it all seems to net out in the end.  Take a puppy, for instance.  Evolutionary processes worked for millions of years to create the domestic dog.  Entropy-decreasing processes seem to responsible for the formation of a puppy from its original constituents, sperm and an egg.  But then the puppy spends years ripping up your carpet, chewing the legs of the furniture and ripping your favorite magazines into little pieces; in short, increasing the disorder of the universe.  Net effect?  Zero. 

Tags: thermodynamics, entropy, heat death, nanotech, superconductivity, life, evolution
Categories: Cosmology | Life | Nanotech | Physics | Science

I had a brainstorm the other day on how we might someday be able to walk through a door.  And I don't mean from a metaphysical standpoint, I mean really physically walk through the door.  If you think about it, there really should be a way to make it happen.  After all, our bodies and the door are almost 100% empty space.  I would argue that Programmed Reality says it is completely empty space, but that topic will have to be for another post.

An electron, in Newtonian mechanics, can be stuck on one side of an impenetrable barrier.  In QM, however, its wave function can be partly on one side of a barrier and partly on the other side at the same time, which allows for the possibility of “tunneling,” a common effect in semiconductors.  In fact, were it not for the wave function nature of QM, transistors, and therefore cell phones, computers, satellites, and all other sorts of modern technologies would not even exist!

Interestingly, this theory does not only apply to subatomic particles, but also to macroscopic objects like me, you, and Donald Trump’s hair.  Since our bodies are composed of particles, each of which are just wave functions, your body is simply the superposition of these zillions of wave functions, thereby creating its own “macroscopic” wave function.  Theoretically, for this reason, you have a finite probability of passing through a wooden door, much like the electron tunneling effect.  But, don’t try it.  Because, when you sum up all of your constituent particles’ wave functions, there is a mathematical tendency for the probabilities of large-scale anomalous quantum effects to be extremely small.  It is analogous to flipping pennies.  The odds that a single penny comes up heads (electron passes through the barrier) is 50-50, but the odds that 1000 pennies all come up heads (you pass through the door) is 2^^1000 (equivalent to a 1 followed by 301 zeros, an impossible to imagine large number) to 1.  And you have a helluva lot more than 1000 subatomic particles in your body.

But what if those particles in our bodies and/or the door were made to be coherent?  That is, in our penny analogy, all pennies behave the same behavior.  Impossible?  Not so fast, Einstein.  LASERs are a great example of coherence, where all photons are of the same frequency and are in phase.  Aren't particles of matter just a different form of particle from the photons and could they be organized to be coherent as well?

Turns out that is exactly the case and it is known as Macroscopic Quantum Tunneling.  U of Illinois researchers have demonstrated such an effect with electrons (real matter) in a nanowire.  Superconductors, superfluidity, Bose–Einstein condensates are examples of properties that seem to defy conventional physics by having their constituents occupy coherent states.  Macroscopic Quantum Coherence is a predicted property, yet to be observed in the laboratory, but probably inevitable, whereby all atoms in the piece of matter observing that property are in-phase and are described by a single quantum wavefunction.  Well, that wavefunction allows for the possibility of matter being anywhere, or "tunneling" through a thin enough membrane of material.  Let's say that, not unlike a laser, we could get all of the atoms in our bodies to be coherent.  Might it not be possible to "tunnel" through a thin membrane of coherent material?  

Effectively, we would have walked through a door!

Yes, I know that all of the different atoms in our bodies might not be made to be coherent with each other.  Then again, think about radio waves of different frequencies.  In general, they can't be in phase with each other, except at one particular point.  Fourier analysis of a waveform with a discontinuity, like a step function or a delta function, has, at the point of the discontinuity, all frequencies in phase.  Could there ultimately be a way to accomplish that with the mere several dozen atomic frequencies present in our bodies (And who cares if that stray bit of Uranium in your spleen is left behind on the other side of the door.  Would you really miss it?)  So maybe the trick is to pulse the coherence into your body just as you walk through the door.

Then there is the problem of how to get each planar sliver of your body to have the same tunneling capability sequentially.  Like, so you don't end up with a door stuck in your chest, all Jeff Goldblum-like.  Seems to me that maybe it's just a matter of applying continuous pulses of coherence into your body as you walk through the door.  For each planar sliver, one of the pulses will eventually make you progress to the next sliver.  Just hope the machine doesn't break down midway through.

So, there you have it.  One, ultra high frequency multi-atomic coherence pulser.  And you're walking through walls.  

Tags: tunneling, quantum coherence, quantum mechanics
Categories: Future Tech | Nanotech | Physics | Quantum Mechanics | Science

This one felt really important during the height of the cold war.

All H-Bombs have an A-Bomb at their core.  The A-Bomb is needed to generated the million of degree temperature to begin the fusion reaction in the H-Bomb fuel.  So, all nukes, therefore, have at their core, a hunk of fissionable material, generally Uranium-235 or Plutonium-239.  U-235, for example, works well as a nuclear fission fuel because when the nucleus absorbs a neutron, it becomes unstable and splits into two smaller nuclei (e.g. Barium and Krypton), releasing more neutrons which then generate more reactions.  A critical mass of fissionable material will explode because the number of neutrons needed to maintain the reaction is exceeded by the number generated.  But, U-235 can also safely absorb a neutron and not undergo fission, transmuting in non-fissionable U-236 before further decay.  But if some process (for example, creating the perfect neutron energy) were to be discovered that caused absorption rather than fission, the core of the nuke could be neutralized.

So, my thought was to blanket the earth with a "rain" of the right particles to neutralize all nuke cores, regardless of where they are buried or hidden, thereby ending all fear of nuclear strikes.

My naivete may have been to think that we could generate enough particles at high enough density to neutralize a nuke core at any given point on the earth without having that particle beam have an adverse effect on plant and animal life.

So where are we today?  Actually, there are a number of nuclear remediation technologies (for example see Gary Vesperman's "Comparison of My List of 27 Methods of Neutralizing or Disposing of Radioactive Waste with PACE’s 9 Methods") that can clean up cores of nukes or fissionable material in general.  None can be accomplished on the "earth blanketing" scale that I envisioned.  However, maybe nanotech can come to the rescue.  Imagine a healthy swarm of nanobots, all carrying the materials needed for a nuclear remediation technique, such as RIPPLE Fission, and instructed to seek out all U-235 and P-239 and unleash the neutralization technique.  

Time frame?  I'm thinking...

2040

Tags: nuclear remediation, nukes, nanotech, fission
Categories: Future Tech | General | Nanotech

Scientists from the International Center for Young Scientists have developed a rudimentary nano-scale molecular machine that is capable of generating the logical state machine necessary to direct and control other nano-machines.  This experiment demonstrates a nascent ability to manipulate, build, and control nano-devices, which are the fundamental premises for nanobot technology.  Other than perfecting these techniques, all that remains to achieve the so-called utility nanobot is the generation of light, wireless networking, and the ability to fly. 

Harvard Microrobotics Laboratory developed a 3 cm 60 milligram robotic fly that had its first successful flight in 2007.  So, it seems that Moore’s law marches on in the world of microbiotics at a doubling of the miniaturization of flying robots every two years.  At this rate, we should get to 10 microns by the year 2030.  This is, of course, ignoring the fact that black ops military programs are generally considered to be at least 10 years ahead of commercial ventures.  Bring on the nano-wars! 

More on Nanotech and the Physical Manifestation of a Reality 

Tags: microbiotic fly, robotics, nanobots
Categories: Nanotech | Robotics