Archives For physics

primordial black hole

At two events of the Wolrd Science Festival in early June,  a group of five theoretical physicists debated whether we’re living in a multiverse, and more surprisingly, if our current understanding of the cosmos all but mandates that multiple universes exist. It all goes back to the instant of the Big Bang, the femtosecond that set the rules for all reality as we know it in scientific terms. Each tiny little quantum instability and flux was stretched and projected across billions of light years to influence the shape of galaxy clusters and the tiny filaments what underpin our mostly isotropic, homogeneous universe. It’s kind of like the chaos theory saying about a flap of a butterfly’s wings eventually causing a tsunami halfway across the world, but taken to incredible extremes. We’re talking about a change in point particles becoming an archipelago a million galaxies across. So, why wouldn’t some of these instabilities become their own universes, sealed off from each other by the fabric of space and time? The inflation we just described should make this inevitable.

Here’s the issue. As our infant universe was inflating, it shouldn’t have spun off uniformly since that would make the fluctuations in early matter impossible and prevented the formation of stars and galaxies. It would’ve had to have large enough disruptions to kick-start other universes, or even itself be a product of another universe undergoing rapid inflation. And if one universe can inflate, so too must the rest because otherwise, inflation becomes a unique event and science is not happy with a one-off event as an explanation. Every significant process we know of happens more than once and on universal time scales of countless trillions of years, the possibilities are pretty much infinite. We should be able to see new universes bubbling up from dark voids in the fabric of space-time, over time. There might even be room to imagine a bizarre, hyper-advanced species of the far future crossing into a brand new universe as theirs dies in a void ship isolated from reality as we know it, Doctor Who-style, hopefully one that’s nothing like the Daleks.

Problem is, how do we prove that inflation works in more than one universe when we can’t see into the multiverse? One suggestion is that inflation basically wraps the universe into a sphere, an unbreachable, self-contained environment that seems flat to us and where trying to travel to the edge of the cosmos will result in the spaceship ending up back where it started as if it were on a Mobius strip. Simple, elegant, and convenient as far as solutions to cosmological problems go, don’t you think? And that’s precisely what’s so bothersome about it. Nothing in cosmology is that simple, even inflation itself. Instead of slowing down, it’s accelerating. Instead of flying apart into clouds of stars and gas under their own momentum, galaxies are keeping their shapes until a collision distorts them thanks to invisible dark matter. Hell, some 96% of the universe isn’t even matter and almost three quarters of it is some mysterious energy feeding its expansion. Does it really make sense that in a universe like that simple, convenient explanations will fly?

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alien bacteria

In a fair bit of science fiction, we see advanced alien species use some sort of shielding to walk around other planets or survive being ejected into space. Something around them flickers and a protective invisible bubble is raised, protecting them from a horrible death by dehydration as all the fluid in their bodies effectively boils away. As it turns out, that’s actually possible. So far it’s only been done with fruit fly and mosquito larvae, but we apparently know how to create a shield from extreme conditions, capturing water and necessary gases trapped in a field of electrons or plasma. All you have to do is take a specimen into an electron scanning microscope and send a shower of electrons or a plasma beam at your target. The electrons and ions envelop the living specimen, creating a little, almost skin-tight biodome that contains just enough air for it to move and otherwise keep very obviously living for about an hour. So, you might ask, electromagnetic spacesuits for everybody? Well, no, not exactly. There are a few really important caveats.

First and foremost, the specimens are being irradiated, and the more powerful the shielding has to be, the more radiation it requires to organize itself. Humans could get radiation poisoning as their suits are being beamed onto them, or at least risk extremly dangerous exposure levels. But if you think a little cancer is worth it, there’s the issue of being trapped with your air supply. With no scrubbers, your respiration would produce dangerous level of carbon dioxide and you would die of hypoxia after about 45 minutes to an hour or so, depending, of course, on your breathing and how much of an air supply you initially had. And now might be a good time to mention that a spacesuit created by nothing but charged particles wasn’t the original goal of the research, the idea was to insulate insects so their movements could be studied in the vacuum of the electron microscope’s sample chamber, so there’s not going to be a team working on these issues in the near or far future. But at least we now know that there really is something to the electromagnetic shielding we see in sci-fi all the time, even though it would make for a lousy spacesuit…

See: Takaku, Y., et al. (2013). A thin polymer membrane, nano-suit, enhancing survival across the continuum between air and high vacuum PNAS DOI: 10.1073/pnas.1221341110

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industrial laser

Most of us learned about lasers from science fiction. We know that lasers come in red if you’re the bad guy, and green or blue if you’re the good guy. We know that they travel at the speed of sound between two space fighters, and they make a phew-phew sound when fired. And they all travel in perfect straight lines. Of course real lasers are very different. They come in all colors, depending on how they’re powered and fired, they’re silent, some are invisible until they reach the kind of energy levels used in fusion reactor prototypes when fired at a real world target, and they travel to their targets so quickly, they seem to flash into existence and disappear in an instant. Oh and they don’t always travel in a straight line. In fact, as noted elsewhere on the web by a scientist and science blogger, they can bend it like Schrodinger if they emit an Airy beam, curving slightly after passing through a filter that changes their quantum waveforms. Previously, this feat has only been accomplished with photons, but now, it’s been done with electrons.

Airy beams — named after a British astronomer who tried to solve Schrodinger’s equation in the field of optics — have a couple of very interesting properties. Not only do they curve, but they’re not as prone to diffraction as our run of the mill laser beams and they can heal themselves after hitting an obstacle that should severely diffuse them, reassembling to continue their curved path after passing through it. It’s even more impressive that electron Airy lasers behave just like their photon counterparts because that allows for significant improvements in electron microscopes, precision sensors, and possibly even alternative computer chip designs that can better control the flow of electrons through themselves. How do you get electrons to do such bizarre things? A specially designed hologram projected in front of an electron gun changes their quantum state and sends them on whatever trajectory you need them to follow. Pretty much anything that uses the flow of electrons to do something very precise in tight quarters can benefit from the ability to attach a sort of steering wheel to particles that would otherwise travel in straight lines.

Now it’s important to keep in mind that curving is not what makes this an Airy laser, it’s the ability to change the quantum states of the photons and electrons being fired, and being able to scale up such lasers could be huge not just in the lab or in specialized applications, but even for very common, everyday things like high speed wi-fi access, secure transmissions, and major gains in energy efficiency for a whole slew of electronic device we use on a regular basis. With so much talk about how much money is being "wasted" on basic research like this, it’s amazing how little attention has been paid for the possibilities Airy lasers can offer if we could integrate their key principles into today’s devices. After all, experiments like this one are the very definition of basic research. The science says something should be possible, let’s try it and see what happens. In this case, Israeli scientists showed that Airy lasers can indeed do some pretty cool things…

See: Voloch-Bloch, N., et al. (2013). Generation of electron Airy beams Nature, 494 (7437), 331-335 DOI: 10.1038/nature11840

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beyond absolute zero

Suppose you take some potassium atoms and put them in a vacuum where you cool them to as close to absolute zero as you possibly can in a lab. What you’ve done is reduced the entropy of this system of atoms because the colder it gets, the less kinetic energy they have, and the less energy they could exchange with each other. Sure there will be some quantum effects that will upset the perfect stillness of these atoms which is why it’s theorized that we’ll never see absolute zero temperatures in the wild, but for all intents and purposes, you’ve hit the coldest that matter can get. Now, with a laser, start heating up the atoms but charge them so they attract each other and stay in their place in the system. Their energy goes up but they can’t exchange it or move in any direction. The overall entropy of the system is now technically less and you’ve just broken a limit we had the gall to preface with the word "absolute." You’ve effectively "cooled" potassium to a billionth of a degree below absolute zero, or at least to a quantum state that seems like it.

This is exactly what a team of scientists recently achieved in the lab and they’re excited about a slew of possible experiments to test the behavior of atoms and molecules in an exotic quantum state, opening new avenues for investigating the nature of dark matter and dark energy. As the media reports it, they managed to chill something below -273.15 °C, but take a moment to note that the word cooled in the description of the experiment is in quote marks. That’s because they didn’t actually go below this temperature. What they really did is way, way more complicated and has actually been long thought possible, just never accomplished. Absolute zero is still important because it marks a point at which injecting energy into a system changes how its distributed. For the positive temperature range, which in this case is anything above absolute zero, more energy brings more atoms to the same energy state. Negative temperatures, however, make exchange of energy much more difficult and can create inequalities between the atoms’ energy states.

Again, seems rather counter-intuitive, doesn’t it? In this setup, positive temperatures should be the low entropy ones, right? Well, in this range, atoms can move and exchange their energy with no limit which means that their possible number of quantum states could be infinite. Atoms which have to deal with negative temperature have a limit to how many energy states they could be in, meaning that you can keep injecting energy into the system but it will be more or less trapped in the atoms and the lattice will remain stable rather than fly apart as the atoms start moving more and more in response. In short, when you go into negative temperatures, you lower entropy as you add energy with the bizarre added twist that as you initially heat up the atoms, they could be in an infinite amount of energy states, then abruptly find themselves trapped in ever fewer. Just another way quantum mechanics makes things fun, and by fun I mean really, really weird.

So what does this all mean? It means that in this case, absolute zero has nothing to do with how cold things are, but how energy states are distributed in a system, and while we thought that this temperature was the dividing line between the two types of energy distribution, this is really the first experimental proof we have that this can happen in nature. If this seems really confusing, it is, because this is just the complicated nature of the beast. But knowing that one can achieve a negative temperature under the right conditions means that you can explore an entire realm of very bizarre quantum states what could explain otherwise seemingly inexplicable behaviors, one of which could offer an explanation for dark energy and give experimentally verifiable answers to one of cosmology’s biggest mysteries. And while yours truly would love to dive deeper into these possibilities, it may be best for everyone just to digest what we have so far and get ready for the imminent flood of Twitter and Facebook posts about cooling things below absolute zero…

See: Braun, S., et al. (2013). Negative absolute temperature for motional degrees of freedom Science, 339 (6115), 52-55 DOI: 10.1126/science.1227831

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r'yleh

According to the Cthulhu Mythos, somewhere between New Zealand and Chile in the waters of the South Pacific, an underwater city known as R’yleh houses a malevolent monster that came to our planet eons ago and is now dead-dreaming until the stars align and he can once more send his spawns across the land, sowing death, destruction, and chaos, feeding on souls of both his followers and his victims. Of course this is just a setting for a string of horror stories and there’s no record of such things as Cthulhu, R’yleh, or the Necronomicon, but that doesn’t mean that a curious physicist can’t have a little fun with a sci-fi horror story and see what it would take for the mythical city of bizarre geometry and warped dimensions to exist. His conclusion? R’yleh’s odd distinguishing features described in The Call of Cthulhu are either powered by a warp drive or the effects of a cloaking device which works much like a warp drive would. And that would make the mythos’ main character’s description as an alien invader seem a lot more convincing…

How would the sailors who landed on the island housing R’yleh see a warped landscape and an enormous eldritch metropolis that made no sense to them. The layout and architecture would’ve obviously been made for alien creatures, so it’s unlikely it would’ve resembled building patterns we use in our own cities. Winged extraterrestrials who either float or move on tentacles wouldn’t need stairs and strictly defined doors, floors, and windows are unlikely to be mandatory. But that doesn’t explain the strange colors and the seemingly impossible geometry. That’s the effect of a gravitational lens on a very small scale, one created by the warp drive enveloping R’yleh. Light would be bent in very unusual ways, giving familiar things bizarre colors and shapes, and giving the sailors constant optical illusions, making the whole city look like a giant M.C. Escher sketch with a liberal touch of late Eocene Clawed and Tentacled Horror and Mild Acid Trip. And just to add to the weirdness, time inside R’yleh would move much slower than it would on the outside of it due to the time dilation effects created by the active warp drive or gravitational cloak.

You certainly wouldn’t want to get stuck in this city if you were lost at sea. Not only would space and time appear and flow differently for you, the primeval ruins populated with only FSM knows, or more likely doesn’t know, what that may be eager to devour you or tear you limb from limb to satisfy their curiosity about the strange bipedal squishy thing making lots of noise in their home, could turn even the shortest stay into decades if you ever make it back to the real world. Good thing this is all just one spine-tingling story from a pulp sci-fi magazine of a long-gone era and in the many decades since it accurately described what sounds like an alien generation ship there hasn’t been so much as a hint of anything weird in the South Pacific pole of inaccessibility where R’yleh was said to be sitting at the bottom of the sea. Well, if you don’t count The Bloop — which no one has been able to explain to full scientific satisfaction. But as I’ve already said, it’s all just creepy fiction. We’re all probably just fine. Probably…

See: Tippett, B. (2012). Possible Bubbles of Spacetime Curvature in the South Pacific arXiv: 1210.8144v1

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transformer box

Last year, I wrote about Andrea Rossi’s claim to have created a cold fusion reactor and suffice it to say that I wasn’t very optimistic about the prospects. Not only did it seem to defy some basic laws of physics but its inventor was exceedingly cagey about how the device worked, claiming to have simply stumble on the wondrous reaction at first, then claiming to protecting a trade secret behind a new 1 MW power plant he was building for a client. The paper he and his partner sent to physics journals and the patent they tried to register were both rejected for the same reason: in place of a basic diagram of how their cold fusion reactor was supposed to work they placed a black box. Without plausible explanations of how they were getting the reaction they claimed was taking place and without a formal, qualified third party validation of their results, there just wasn’t enough for reviewers or the patent office to conclude that the results were legitimate. And there were the two tiny little problems of Rossi being a convicted con man whose engineering degree came from a now defunct diploma mill, making it hard for him to establish credibility.

But it seems that Rossi is anything but persistent and he’s kept his experiments going. The Pop Sci story really tries to keep an open mind when talking about cold fusion, or as its advocates refer to it, low enery nuclear reactions (LENR) and tried not to be too hard on Rossi, but what it portrays is very unflattering nonetheless. Rossi steadfastly refuses to release any details, hand-picks the audiences for his demonstrations, doesn’t unplug his device during these demos, and refers only to "important institutions" and "major technical reports in progress" when pressed for some specificity in his claims. Not only that but he is almost pathologically paranoid of criticism, so much so that he refused to meet with the story’s author several times because he got wind of the fact that his critics would be asked to weigh in as well, finally consenting to be interviewed in one of the pettiest ways imaginable: at the exact time the author booked his critics’ interviews. If I were a potential investor in his business, this would definitely spook me. And considering that we aren’t told who may be interested in investing, there may be no real takers for Rossi’s E-Cat.

After the first post on Rossi, several people posted and sent me links to cold fusion sites filled with papers claiming to see low energy reactions in a variety of improbable machines, arguing in favor of keeping cold fusion in mind as a potentially viable power source. However, none of the papers seemed to make a whole lot of sense from either a physics or an engineering standpoint and the vast majority of them reported the kind of energy that could’ve easily been created by a random chemical process or impurities in the materials used to construct these test reactors. To claim viable cold fusion you need more than a small temperature rise. You need to have a major spike in energy and some radioactivity to prove that the reaction is indeed nuclear in nature. On top of that, you need the reactor to clearly be scalable, enough to get a 15 to 30-fold return on the initial energy investment so plans for power plants could be drawn up. A lot of weird stuff can happen on very small scales, but that weird stuff is not cold fusion or anything like it as far as all the verifiable, consistent evidence we have tells us.

What seems to be happening is that LENR advocates see small temperature bumps and a wide variety of anomalies they can’t explain, and because they so badly want to do what science said cannot be done, attribute it to the first stirring of cold fusion. And since they’re so invested in the idea, they refuse to take no for an answer and reject any alternative explanation for what they’re seeing in small scale, insisting that with just a little funding their table top experiments could be turned into energy farms. But because they can’t explain what they’re seeing and how it works, a scientist with access to the cash they need isn’t going to be swayed into hobbling his or her own research for a gamble on an unexplained anomaly. After all, the LENR enthusiasts are asking us to do the equivalent of buying a car that doesn’t seem to have wheels or a gas tank, with a hood that’s welded shut without test driving it first, claiming that they’ve driven it and while it wouldn’t do 0 to 60 in 5 seconds, it can waddle along by some wondrous phenomenon they can’t explain which is why we need to buy it and invest in modifying it into a cargo ship. It’s simply too much to have to buy into before writing a check, which is why cold fusion has been long mothballed.

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reaching out

Welcome back to yet another installment of the question of whether we’re all just products of an advanced simulation that created an entire universe, but this time, instead of plunging deep into the lore of the Matrix with Moore’s Law hijinks and philosophy, we’ll be hunting for physical proof that the universe is actually a simulation in the realm of quantum chromodynamics. What exactly is quantum chromodynamics? It’s the study of interactions between point particles that make up matter as we know it and its more exotic forms we sometimes glimpse when we smash atoms with enough force. How these particles interact basically defines what is and isn’t possible across the entire universe because without their fluctuations, the cosmos would still be a zoo of particles in no way, shape, or form resembling the planets, stars, and galaxies we know and love today. So the big question is whether those point particle interactions have a very telling limit and what this limit could tell us about the underlying nature of the universe.

One idea is that these limits should fit a three dimensional lattice around the interaction, which essentially means that interactions between point particles should fit into a predictable model on which other interactions can be neatly stacked. Since the authors of the idea in question aren’t computer scientists, they refer to this packet of quantum information as a cubical lattice. Being a computer person, I would refer to it as a voxel; it’s a three dimensional pixel which makes up the environment in which the simulation should take place. Think of Minecraft but with blocks on the smallest possible scale we know how to measure, a scale on which point particles would be as big as ants while atoms would be the size of buildings. This is essentially what the researchers are talking about when considering if our universe is a simulation; countless tiny voxels moving through a mind-bendingly complex simulation governed by exotic math of a computing device of unknown power, origin, purpose, and accuracy, defining the laws of physics we can detect.

But how does one prove that we live in a simulated environment and the limits of point particle interactions don’t simply happen to fall into a voxel on their own? Doesn’t the whole idea rest on circular logic? The voxels should have an energy limit of Ψ and if the quarks and gluons that we measure have an energy limit of Ψ they are voxels? Something just does not add up here. If we try to control the state of something virtual, we have to expend a lot of energy to do it. Today, it takes a supercomputer to simulate the behaviors seen in a cube of space barely big enough to fit a few simple atoms. If we want to do even a simple byte flip, we have to conduct a current that will be converted into 0s and 1s. Even on a quantum computer we’ll need to apply a good bit of energy to keep the qubits in a state we can manipulate. So if a universe is being simulated with some sort of a hypercomputer, it requires an immense amount of energy to run, even if all the supernovae and galactic collisions are just instructions on a stack.

Who would have such energy generation capabilities and why would anyone decide to simulate the universe in such detail? Simulations are best when they focus on the specific things to model at the appropriate level of abstraction. When researchers look at virtual galaxy collisions, they don’t spend the computing power and electricity to model the position of each star because they don’t really need to know where each star moves for the purposes of seeing how galaxies affect each other. They’re concerned about the overall shape of merging galactic arms so exact details of every solar system involved would only slow the simulation down. Likewise, a simulation of an entire universe down to the detail of a point particle doesn’t seem to make much sense unless the simulation’s goal is to create something like Laplace’s Demon, which we can do with enough computing grunt but will mean little in the real world. Beyond that, we get into philosophical and abstract questions like who designed the simulation and if their universe is a simulation too. And we’ll quickly arrive at the First Cause dilemma on rather shaky grounds. Not exactly the place a scientific proposal wants to end up when taken through its implied consequences…

See: Silas R. Beane, Zohreh Davoudi, & Martin J. Savage (2012) Constraints on the universe as a numerical simulation, arXiv: 1210.1847v1

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Over at Cracked.com, internet comedian Luke McKinney made a list of the world’s worst and most misanthropy-inducing reactions to the experiment showing the very probable existence of the Higgs boson and decided to swiftly tackle the unfortunately popular befuddlement over why we need to know whether the boson exists or not. His description of the mindset it takes to discard putting in the effort and money into research and discovery may not grace any stump speeches on any campaign trails but if someone you know has ever asked you “why are we spending all this money to figure out how [complex scientific concept] works?” or “why waste money on this [scientific experiment or mission] if it won’t give me a new job?” and you’d like him or her to know exactly how this sounds to someone familiar with how science works, this is the quote you should really show the shruggie in question…

When people ask, “What’s the point in understanding everything?” they’ve just disqualified themselves from using questions and should disappear in a puff of paradox. But they don’t understand and just continue existing, which are also their only two strategies for life. These are the apes who sat in the back of the cave, scratching themselves while ooking about how bashing rocks together was a total waste of time. Except back then they had a better excuse for their sloping foreheads and scratching themselves in public.

Previous investigations of apparently pointless physical phenomena led to little things like electricity, quantum mechanics, absolutely everything, the entire modern world. Stuff like that. The most important breakthrough in the last thousand years came from shining invisible light on a piece of metal to watch more invisible bits come out. If scientists hadn’t followed up on this odd little detail (aka the Ultraviolet Catastrophe, the most badass-sounding revolution in scientific understanding), the absolute limit of modern technology would be brass and steam. And we’d have Cavepunks wearing fake animal skins, posting lithographs of themselves holding giant fake clubs that don’t actually work for hitting things.

As hard as it may be to believe, the universe is not here to make sure you have a job every two or three years when you need a change of scenery, or to help scientists boost your paycheck within two to four weeks of a new discovery. It doesn’t even care if you exist, how much you make, or whether your car has the leatherette seats you wanted or if you had to settle for microfiber. Therefore, when scientists try to pry open the fabric of space and time to understand how it works and what they can do with their newfound knowledge, or discover the building blocks of life itself, you can bet that their result isn’t going to immediately translate into a new job for you. Even the invention of the internet, one of the biggest boosts that international economies have ever had, took a long, winding, 30-plus year road to being monetized. You may not reap the benefits of today’s cutting edge research, but your children and their children very well might. And are you really so cheap that you can’t afford a penny or two from your paycheck to invest in the future of your offspring? Think carefully before you answer.

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His name is Louis and he’s very, very, very angry. Don’t rush to condemn him though, he has a reason for his pent up fury and a rather good one at that. You see, those freaking morons in physics and computer science, those elitist, ivory towered academics who write nothing but bullshit in their journals will not see his brilliance in these fields. But that’s fine, it’s ok. He knows he won’t reach these brain damaged idiots, he’ll just take his paradigm-shifting insights straight to the people, avoiding the trap of peer reviewed journals which exist only as an obstacle to those as gifted as he is. Behold his series on why motion is impossible, the only speed of any object is the speed of light, and how all of space is on a 4D lattice. Don’t ask him what this lattice has to be or what it’s called because you will force him to reveal his elaborate, long term plans which apparently just have to be hidden from those nasty physicists. Tremble as he finally explains those mental midgets in comp sci how to make bug free software by having the computer handle all the testing, while demonstrating his utter lack of familiarity with how to test corner and boundary cases or for what environmental variables to look with a fervor that has him rabidly clawing at the keyboard. In short, the man is an ignoramus with issues.

insanity

When Loius presents his personal framework for physics, it’s difficult to debate his points, but not because of any cunning numerology or complex concepts involved. It’s because his arguments consist of declaring what does or does not happen in the universe and how, calling physicists stupid and too politicized to see that he’s inarguably correct, then meeting any critique or request for actual proof in the comments with a noxious mix of derision and anger. There’s simply nothing to argue about because he gives you no evidence or reason as to how he arrived at his conclusions. Just like all physics cranks, he’s afflicted with pathological arrogance and sees any attempt to question him or his methods as a nefarious scheme of an establishment which refuses to acknowledge his groundbreaking ideas. In his universe, everything travels at the speed of light without any motion whatsoever, just jumping between points on a lattice, there’s no general reality or time dilation, and all other ideas are just a display of physicists’ mental deficiencies over the centuries. Don’t even try to ask why or how he incorporates experiments showing the effects of all the things he denies exist very much existing into his train of thought. You may as well plunge your hand into the maw of a rabid bulldog. Now, as he goes on to bash computer scientists for their inability to design perfect software, he actually does give us some fodder to chew on, and by chew on, I mean demonstrate his complete lack of knowledge in the area.

His big problem is the notion that it’s impossible to write 100% bug free code because we can’t account for all the possible use cases, failures, and environmental variables over time. After spending his customary two or three posts calling anyone who agrees with this idiots (really, it’s impossible for me to understate just how full of rage this fellow really is), Louis announces that we can just let the computer calculate all conceivable tests and test cases. Is there a limit on what values can be entered into the program? Just make sure no one could proceed with a value below the minimum or above the maximum. Because apparently, no one thought of that and there aren’t about three dozen packages that make sure you test every line of code, every conditional, and every data model which come by default with most modern IDEs, or can be freely downloaded. As if I use one of those every day when writing code. Oh and we can also program the applications to monitor hardware and alert us when something goes wrong. Again, no one has thought of this and there certainly aren’t companies which made hardware monitoring applications for decades on end. But seriously, does this guy really think IT is too stupid to adopt these widely available tools and sabotages their clients’ software for a quick buck as if a client today won’t have new problems to solve tomorrow as his or her business changes over time?

And here’s something our self-proclaimed rebel scientist should start considering if he ever manages to free his head from the region where he firmly wedged it. Piling up automated tests and monitoring systems, then monitoring systems to watch those monitoring systems, then add more monitors to watch the systems that'll monitor the monitoring systems, and so on, won't work. You'll be left with a hobbled monstrosity that takes far too much time and memory to run, and the tiniest modifications will be Herculean efforts because you need to reconfigure a ridiculously overcomplicated and overstuffed system. But none of this even seems to come into play with Louis because he's the archetypical crank, a textbook victim of the Dunning-Krueger effect, seething with rage that those supposed experts dare not see his brilliance. Across the web, thousands of Louises yell into the digital darkness and pound their chests as they declare entire fields of science to be utterly wrong, far beyond anyone but their abilities to fix. The haunt comment threads and search results, demanding attention, reverence, acceptance, and above all praise. Who knows, maybe Louis and others like him have careers that made them experts in something I wouldn't know a thing about. Maybe he's a chemist extraordinaire or one of the best car mechanics you'll ever meet and perhaps, knowledge in one area gave him the idea that he could also be a visionary in another and failing to grasp his new obsession, he chose crankhood over study…

[ illustration by Jhonen Vasquez ]

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Say you need to communicate not just with someone or something far away, but someone or something very, very deep underground, or underwater, or on the other side of a planet. You could create satellite relays which will bounce the signal around to get to your target wherever it is in space, but that requires a lot of money and some very delicate arranging and aligning so the satellites can see each other. And when you need to send a message through water or rock, no satellite will help you there. The signal will just dissipate to nothing before reaching the receiver or slow down to the point where you’d have to transmit a simple message for hours just to make sure the other party can piece it together. What to do, what to do? How about just sending out a beam of neutrinos which will easily travel through solid objects and help ensure high fidelity where other signals will not reach or become totally impractical to use? A team of physicists at FermiLab just so happened to test how well this idea would work and managed to transmit a brief binary message through almost 780 feet of rock at an impressive 99% accuracy rate. Neat, huh? Definitely. But there are some major tradeoffs involved…

First off, if you want to download a movie or watch Netflix underground with your new neutrino wi-fi, you will be sorely disappointed since their more or less average transfer rate was 0.1 bits per second, peaking at a very much not blistering 2.2 bits per second. It’s not that the beam can’t carry more data, it’s that neutrinos interact so rarely with normal matter that this is what could be detected from the 2.5 × 10^14 particles sent. Speaking of detecting the messages sent with neutrino beams, if you want to use a neutrino wi-fi, you’d need a very big, very precisely calibrated modem that weighs around 170 tons, which would make it rather difficult to stuff in a backpack or launch into space for practical use. Finally, you need a very, very powerful beam to send all these neutrinos and aim it directly at your target, much the same way laser communication would work. Certainly, it should be possible to broadcast waves of neutrinos across a wide area in pulses, each pulse representing a binary symbol, but as the neutrinos disperse, they would become a lot harder to detect and that average data rate cited above would plummet by at least an order of magnitude if not two. And if you’re already using a very powerful neutrino beam with which it would still take almost five and a half days to download the illustration I used for this post, it’s very hard to imagine that a wide area broadcast would perform comparably.

But all that said, this is just a proof of concept and the whole point was to show that neutrino beams really can transmit data in a scenario where they’re needed to do just that. We shouldn’t expect this test to reach any real or useful data rate. However, it’s difficult to overlook the problems with detecting these neutrinos because any sort of reliable detection would not only involve a massive detector but hiding it somewhere only neutrinos will pass without any difficulty. Suddenly a satellite array looks like a much more practical solution since satellites be able to provide much faster data exchange, won’t have to accommodate enormous internal structures, and be buried underground or sink deep underwater to do their work. Unless we can come up with lightweight but accurate neutrino detectors, this proof of concept is very likely to remain just that, and given the difficulty in the amount of effort necessary to detect something that only rarely and very weakly interacts with matter, it’s not an easy task to put it mildly. At least we know it can actually be done and have a very good use for new detectors right away, thinking out of the box to harness exotic particles for our data needs. Even if we can get something close to a slow dial-up connection going, that would already be more than enough to use in emergencies and scenarios in which we need to talk with the outside world in very challenging and distant environments and a few brief words sent every once in a while would definitely make a real difference.

See: Stancil D., et al. (2012). Demonstration of communication using neutrinos Phys Let A arXiv: 1203.2847v1

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