Researchers At Brown University Shattered a Quantum Wave Function
I don't see that this experiment is any different from a photon reflecting between parallel partially-silvered mirrors. You see a range of arrival times at the detector, despite the wavefunction being "fragmented" by multiple reflections.
I only got a chance to scan the paper, but my impression is this. The difference is that the split electron wavefunction is creating a bubble in the liquid helium. Splitting a quantum wavefunction is rather boring: it's pretty easy, all you need is a finite barrier to produce tunneling, or a double-slit to produce separate paths, or a bunch of other ways. What this experiment does, though (if they're correct about the cause) is show that the split wavefunction actually affects the matter through which it travels (creating a bubble), proportional to the amount of wavefunction that splits off, without counting as a "measurement" which would collapse the wavefunction and place the electron definitely inside one bubble or another.
Or, to put it another way, it shows that matter not only behaves like a wave when traveling (which was very well known in quantum mechanics), but can do so even when interacting with matter. That is fairly novel (AFAIK) in QM, since usually such interactions either cannot be measured or collapse the wavefunction into a particle-like behavior. It's a lot closer to directly measuring the wavefunction (or it's amplitude, anyways) itself than most QM experiments allow.
The One App You Need On Your Resume If You Want a Job At Google
Ugh, this reads like a job ad.
When I moved from Matlab to Python three years ago, I saw a massive speed increase of my methods. Also I no longer have to decide whether or not to shell out more cash for the statistics package, it's all there!
Looking back at my old Matlab code also makes me cringe a bit about the syntax of that language.
Reads more like an ad for Matlab (with 2 links to Mathworks and 1 to the Wikipedia Matlab page in TFA) than a job ad. Though I suspect what actually happened was the reporter heard Jonathan Rosenberg mention Matlab (which the reporter hadn't heard of before) and got all excited over his "discovery" when anyone who's likely to get any kind of data analysis/statistics job for, well, anyone, already knows what Matlab is.
The Correct Response To Photo Hack Victim-Blamers
If it were April I would say that huge mount of boring text has a point hidden somewhere inside it. Let's hope there's a piece of chocolate attached to it as well.
Although if anyone does find something dark brown and gooey in that text, I'd advise them not to try eating it, as it's probably not chocolate.
Co-Founder of PayPal Peter Thiel: Society Is Hostile To Science and Technology
Relativity and Quantum Mechanics are both about 100 years old now (really!). Why aren't they taught in high school? High schools mostly teach science that was the state of the art around the time of the US civil war (really!).
Kant is even older than that, and yet you don't see him being taught in high school either. The age of an idea has little to do with the complexity of the idea, and quantum mechanics is quite complicated, if you want to really understand it. Shakespeare is only widely taught because, due to cultural influences, he is considered something that everyone should know, and his plays aren't really all that hard to understand. Quantum mechanics, orbital dynamics, E&M, etc., not so much. It's not simply because they're hard, either, though those subjects are: it's simply because, unless you're going into a field that requires it, you really don't need to know them, just as the physicist doesn't need to know Kant.
GlaxoSmithKline Released 45 Liters of Live Polio Virus
Explain how my concept doesn't solve the problem please.
Because giving a bunch of humans a boring,monotonous job doesn't solve the problem of humans making errors, which is what caused this release in the first place.
NVIDIA Begins Requiring Signed GPU Firmware Images
They are selling nvidia cards with a modded firmware? Why? Nvidia is going to change their hardware, and hardware will only accept signed firmware. Fake cards, can choose to simply not do any signature checks on their hardware. Unless the fake cards are real nvidia cards, which for some reason run a modded firmware instead of nvidia singed firmwares, this will have no effect on them.
That's exactly what they are. It's pretty trivial to take, say, GTX 440, and reflash the firmware to report that it's a GTX660. It's extremely difficult to make a fake nvidia card that isn't actually an nvidia card that actually works as a video card and isn't completely obviously a fake. The story was even on slashdot.
NY Magistrate: Legal Papers Can Be Served Via Facebook
The judge may have said it can be used in this one case, but unless struck down by another court, it sets up a precedent for other judges to do the same.
IANAL, so I can't say for sure, but it's unlikely. The magistrate didn't rule on a matter of law, only on a matter of procedure (i.e. how to serve a notice). Judges in most cases are typically free to set procedural changes if necessary at their discretion, no precedent required. It's not a formal court decision, it's a discretionary alteration to formal procedure made necessary by the difficulty in contacting the ex-wife. And of course it's a low level judge anyways: their decisions of any kind tend to carry very little weight with other courts.
Of course, other judges who hear about the case may decide on their own judgment to do likewise, but there is nothing legally obligating or even inclining them to do so.
New Study Projects World Population of 11B by 2100
Midwestern states had higher combined populations than the Northwestern states.
You truly are a blithering nincompoop, aren't you? Can't tell the difference between population and population density ...
Irony: calling the American Midwest "unpopulated", yet calling someone else (who points out that the Midwest is not, in fact, unpopulated) a "blithering nincompoop."
The word you may have meant to use is underpopulated. I know language is complicated, but despite sharing several letters, "un" and "under" do not, in fact, mean the same thing.
Sincerely - One of the tens of millions of people who live in the Midwest.
"MythBusters" Drops Kari Byron, Grant Imahara, Tory Belleci
I often agree with Randall, but in this case I think he's (mostly) wrong. Yes, ideas are tested by experiment. Properly constructed experiments. That means repetition, controls, statistics, the whole nine yards. If scientists used Mythbusters-style experiments we'd still think light objects inherently fall faster than heavy ones (after all, most lighter objects do fall slower than heavier ones, thanks to air resistance). You don't think people in the "unscientific darkness" didn't actually try out a lot of the things they got wrong? Of course they did. They got it wrong because they ran their experiments improperly. And Mythbuster's often does as well. To be fair, "it didn't work this time, lets try it out 99 more times to make sure" doesn't really make entertaining television, and that's generally all Mythbuster's is: entertainment. They have the seeds of science (experimentation), but science is far more than that alone. The problem is, when people look at what they do as actually being science, they end up thinking you can confirm a scientific theory with a single experiment run with 20 minutes of work. And the conclusion to that thought process is looking at the weather report and dismissing global warming because it's a particularly chilly summer. Or saying "hmm, well [some action] didn't kill me this time, it must be perfectly safe."
Scientifically educated people don't come to that conclusion, of course, but those people aren't the problem.
Is Dolby Atmos a Flop For Home Theater Like 3DTV Was?
You can't. You just think you can because you over-estimate your abilities. I encourage you to do an internet search for the relevant research. There was a slashdot story about it ~ 5 years ago.
I did do an Internet search, and in fact found plenty of research that indicates humans and other mammals can in fact localize sound in the vertical plane (i.e. whether it comes from in front of behind of you). Of course, it doesn't work for all sounds, but the capability is there.
World's Fastest Camera Captures 4.4 Trillion Frames Per Second
(On a more serious note though, how on Earth do they manage to store even a few microseconds of the footage from this beast?)
They don't. From the full paper:
In our proof-of-principle demonstration, the total number of frames was limited to six due to our simple embodiment of the SMD (Supplementary Figs 3 and 4), but can be increased up to 100 by increasing the number of periscopes in the periscope array of the SMD or by using a more complex design (see Methods and Supplementary Section ‘Improvements in STAMP's specifications’)
You can't just record an indefinite length movie with this thing, you basically need to alter the hardware to record longer segments (since it has different physical elements detect different frames of the signal).
Can the NSA Really Track You Through Power Lines?
It may be just noise, but is it different noise between different power lines (and if so, consistently different)? If so, it's a fingerprint. Noise can be information if you're looking for a specific kind of noise. Not all noise is identical, and if you can fingerprint that noise, you can use it to determined the source.
Granted, that's a pretty big "if". I have no idea if powerline noise is consistent enough to be fingerprinted, different enough for a useful comparison, or strong enough to be picked up by standard recording devices. But it could be possible, in theory.
SpaceX Delays Falcon 9 Launch To Tuesday
It is almost like reporting that a thunderstorm was spotted in Florida today. Is that news?
As a pilot once sagely put it: Take-off is optional. Landing is compulsory.
Though, for a satellite, landing can also be optional.
Big Bang Breakthrough Team Back-Pedals On Major Result
Planck has yet to release their polarization data, so BICEP2 couldn't use it. To be clear, they also didn't use just the Planck data: the paper lists five different models for dust polarization, only one of which (DDM1) was constructed from what little Planck data they had available. All of them showed fairly tiny amounts of polarization from dust compared to their signal, hence the conclusion that it was a cosmological polarization (there were other reasons for that conclusion as well, of course). They published the conclusions they had based on the information they had available. That's how science works. You publish the results you got (with the uncertainties you calculated), the community looks at it to see if you made obvious errors, then tries to replicate or disprove it.
Google To Spend $1 Billion On Fleet of Satellites
I can't find an exact altitude for these satellites, but O3b (whom Google is working with on this project) is putting satellites in orbits 5,000 miles above Earth, which is definitely not LEO. That's lower than conventional geosynchronous communications satellites (which sit ~22,000 above Earth), but well above the low-Earth orbit cutoff (which is roughly 1,000 miles and below). At 5,000 miles, the atmosphere is thin enough to be considered non-existent. Now, Google might be looking at lower orbits for these newer satellites, but they haven't said yet.
Which desktop environment do you like the best?
Hey, of course you don't have crazy stuff like wobbly windows, but all desktop effects are fully smooth on all those low-power 10" netbooks under Windows. I have done extensive testing and know this. Under Linux, you put there KDE/GNOME/MATE/Unity and even the simple window minimize/restore animation is choppy.
You've got a software problem there. I have a Eee 901 netbook, which used to drive a 1080p monitor under GNOME 2 (with some eye candy on: window transitions, workspace transition effects, that kind of thing) quite smoothly. It was (and still is) running an old Ubuntu version (12.04 I think?), that may have something to do with it, but either you've got a software problem or the distro you're running it on is bloated.
German Scientists Successfully Test Brain-Controlled Flight Simulator
What is brain controlled?
It's replacing the physical flight controls with directly brain-controlled flight controls. As to why: a large part of learning to fly (not the biggest part, certainly, but a significant piece) is learning how to use the fairly complicated controls. If you can simplify or even remove that interface, it makes the process of flying easier to learn.
Since this is Slashdot, someone is undoubtedly going to say that that learning difficulty is a good thing, since it sets a higher bar for pilots. There may be a bit of truth to that, but it's an artificial boundary that doesn't actually pertain to flying ability. It's like having to learn to use a Dvorak layout before you let anyone code: learning Dvorak probably won't make you a better coder, it'll simply make learning to code a more difficult process. Likewise, the complex controls that planes have doesn't make pilots better at flying, it simply makes learning to fly more difficult. So, while complicated controls might keep out lazy pilots, it won't keep out bad pilots (that's what the licensing requirements are for).
Why You Shouldn't Use Spreadsheets For Important Work
if it can execute the operation needed for the research then it is acceptable...if not, then no
You could probably write this computational code in a shell script, too. But it would still be a terrible idea. Why? Because it's the wrong tool for the job. Simple as that. It doesn't matter what you can and cannot do, it matters what you should do, and you shouldn't use spreadsheets for anything complicated. It's simply too easy to make stupid mistakes that are difficult to trace and correct (or even notice).
you can't blame a spreadsheet for a poorly devised experiment...you *can* blame a researcher for using an inappropriate statistical model...you *cannot* criticize the method of analysis as long as it is physically capable of the computation
TFA isn't blaming the spreadsheets, he's blaming the people who use them for using them. It's not acceptable to use a tool that works poorly and is highly susceptible to mistakes, and no one should listen to anyone who does so unless that person is damned good at that tool: yes, it is possible that someone is so fantastically good with spreadsheets they can use them for massive data analysis with no problems. They are, however, the exception, and I would generally be inclined to disbelieve the results from anyone who does large work with spreadsheets (simply because of the possibility for errors and the lack of concern for accuracy that using spreadsheets demonstrates). So, the conclusion is that you shouldn't use spreadsheets for important work. You absolutely can criticize an analysis if it uses a tool that is highly likely to introduce errors, and that's fundamentally the point (and it's underscored by the fact that that is precisely what happened in Piketty’s case).
Botched Executions Put Lethal Injections Under New Scrutiny
Per the Constitution, the acceptable error rate is 0% false positives and any amount of false negatives.
No it isn't. In fact, it's easy to see that any justice system that accepts only a 0% false positive rate would convict absolutely no one of crimes whatsoever: it's simple Gaussian statistics. No matter how confident you are that someone committed a crime, it's impossible to be 100% positive, even if you saw them do it with your own eyes, which means that any standard of evidence no matter how high will yield a non-zero false conviction rate, so you couldn't convict anyone under such a high standard.
No, what the US follows for convictions is "reasonable doubt", which will inevitably lead to some false convictions. The alternative is to leave all crime unpunished, which is even more unacceptable than to have some innocent people end up in prison. It may sound "barbaric", but letting the guilty get away with their crimes is vastly more barbaric, and a society that did so would quickly collapse.
SpaceX Cargo Capsule Leaves Space Station For Home
Pounds are both a measure of weight and mass, and the USA Today article uses pounds (not tons, Slashdot did that conversion) because, for better or worse, the US population is more familiar with US customary units than metric units, and USA Today is marketed at a US audience (the name is a bit of a clue). NASA also uses US units for some mind-baffling reason (maybe it likes destroying Mars Orbiter missions?) so the US units make sense in this story.
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