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User: ari_j

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  1. Re:Sigh, More Control less annoyance per alert FIR on The FCC Is Changing Up the Country's Emergency Alert System (theverge.com) · · Score: 1

    What we actually need is an emergency broadcast system that respects urgency, priority, and relevance to its audience. We have the technical capability to target an ad to me here on Facebook that knows I was shopping for a Microsoft Surface earlier this week, but somehow this is how our emergency alert system actually works:

    Some grumpy old guy 200 miles away storms out of a family meal to walk to the bar. They call the police. Then they find the guy at the same bar he always goes to when he is mad at them. Then the police issue a Silver Alert to cover the entire state, just in case an elderly jerk is healthy enough to walk 200 miles across open prairie but somehow will be in a health crisis when he gets to my town. My phone and all those around me make annoying sounds. Everyone thinks there's an active shooter at the local post office and, since we all hate our local post office for losing mail and lying about it, everyone gets their own guns and heads to the post office. Two days later, the evening news (that nobody watches) reports that the Silver Alert had been issued after the guy was found at the bar, just trying to have a beer in peace away from his annoying family.

  2. 1035 doesn't sound so bad. 10^35 on the other hand...

    For years now, the editors have not understood science. Now, they don't even understand scientific notation.

  3. Re:Hypocracy on How Russia Recruited Elite Hackers For Its Cyberwar (nypost.com) · · Score: 1

    The difference is that Americans have the right to vote without being encumbered by the truth about any candidate.

  4. Re:WTF??! on Vim 8.0 Released! (google.com) · · Score: 1

    Emacs users have more time for commenting on slashdot. What else are they going to do while waiting for Emacs to load?

    I don't know about the rest of them, but while I waited for Emacs to compile and load, I wrote a major made for posting Slashdot comments. Of course, I used Vim to write it because it has better syntax highlighting for Lisp code than Emacs does.

  5. Re:What about the Methane???? on One US Oil Field a Key Culprit In Global Ethane Gas Increase · · Score: 2

    The wells in that region produce mostly crude oil and natural gas. Crude oil is easy to store in tanks, put into tanker trucks, and otherwise get off the well site to the market in a variety of ways that you can use from day 1 of drilling the well. Natural gas must either go into a pipeline, be vented into the atmosphere, or be flared (burned) into the atmosphere. Pipelines can take years to catch up to drilling (not really due to regulation as others have pointed out, but rather due to rapid drilling for profitable oil outpacing thousands of miles of pipeline construction to sell much less profitable natural gas, along with lack of enforcement of regulations intended to restrict flaring to a certain time period after drilling a new well). So a lot of gas has to be vented or flared. Venting is considered worse than flaring for the atmosphere (because methane is a worse global warming gas than CO2 as you pointed out), so it all gets flared. Perhaps flaring burns the methane but not the ethane, or at least not all of it, which is why ethane is the problem we are focusing on here?

  6. Re:Saw it last night in 3D on Review: The Martian · · Score: 3, Insightful

    The challenge is stranding someone alone on Mars. It's easy to envision the entire crew getting stuck there. Malfunction in the ascent vehicle would do that. If it had a sufficient electrical meltdown it could even justify the loss of contact with Earth. But getting five people safely off the surface, all of them convinced of the sixth crew member's death and unable to retrieve his body, was a writing challenge. What scenarios can you think of for one man being left alive, alone, and presumed dead on the surface of Mars?

  7. Doing the Math on Former NASA Mission Controller James Oberg Lauds 'The Martian' · · Score: 1

    SPOILER ALERT: Spoilers about the first chapter of the book follow! (Because someone is likely to complain about that kind of thing.)

    Has anyone actually done the math on this? We are not talking about a man being blown around in a windstorm, really. We are talking about equipment that NASA launched to Mars getting blown around in a windstorm. The ascent vehicle getting blown nearly over is a stretch, for sure, but perhaps the injury that befalls the protagonist is not. It was inflicted on him by a piece of metal that was thrown by the windstorm. I am not qualified to do the math, but I hope someone else here is.

    While the protagonist and most likely the ascent vehicle are fairly heavy, presumably everything else that NASA spent rocket fuel to put on the surface of Mars is as light as it can possibly be to still do its job. It would not take much air density to pick up a piece of metal that has high surface area and small mass, like a thin piece of aluminum with a bend in it to make it rigid would be. It certainly could be whipped by the 150kph (42m/s) wind. Anything near that speed and it would not have a problem piercing a spacesuit or damaging a circuit board. Maybe it would not likely have enough energy to do both of those things and still seriously injure a human, but it is at least plausible from this high-level perspective.

    So, who here has the knowledge and the energy to run the numbers on whether this is more than just plausible and actually possible? I wish I had the former because I certainly have the latter and enjoyed the book--the plot, the technical details, and the writing style--enough to want other people also to enjoy it. Maybe Randall Munroe will give it a shot, although it is a bit non-absurd for his usual taste.

    By the way, let's give the author one deus ex machina point for how he solved the final problem that his characters faced. Does he get a negative deus ex machina point for how he created the first problem that they faced and thus balance it out or do both problems and solutions have positive valence when counting the dei ex machinis?

  8. Re:It not very hard on How Spotify Can Become Profitable · · Score: 1

    I thought their current business model was to charge everyone $5 per month, including non-subscribers. At least that's what my credit card statement and numerous online forum posts seem to indicate. Their customer service apparently also sucks, as they refuse to answer when you e-mail or call to discuss the fraudulent charges. They could probably become more profitable if they started earning money instead of stealing it.

  9. Re:I'm confused on Multiple Manufacturers Push Hydrogen Fuel Cell Cars, But Can They Catch Tesla? · · Score: 1

    At least the editors, who are surely knowledgeable enough about technology to have a basic grasp on what a hydrogen-oxygen fuel cell is, likely from growing up reading about the Space Shuttle and thinking decades ahead about how cool it will be to power everything with such an amazing device, were able to catch this absurd inaccuracy and correct it before publishing this idiotic submission.

    Wait...you mean to tell me that it was only all of the readers of Slashdot who caught that, not the editors? How did that happen?

  10. Re:What's happened to Slashdot? on Aral Sea Basin Almost Completely Dry · · Score: 1

    The number of comments just proves that number of people who read about this in mainstream media several days ago when it was trending on Facebook but who had to wait for Slashdot to catch up to the trend before they could say anything about it that someone else might read.

    The fact that it is trending on Facebook this week proves something else, which is that most people think the Aral Sea is a big circle as shown on most world maps and globes and had no idea that the Soviets had diverted its main sources, leading to its shrinkage, about 50 years ago. I admit that I suffered the same ignorance, although I learned about this a few years ago before it was cool and I suspect that I am not the only one whose sole surprise from this story is that it is so popular to talk about this week all the sudden.

    The use of the term "inland lake" in the summary proves that no nerds were even involved in getting this article onto Slashdot's front page. A real nerd would not distinguish between inland lakes and all of those lakes in the middle of the ocean.

  11. Re:Don't understand Aereo's lawyer on Aereo To SCOTUS: Shut Us Down and You Shut Down Cloud Storage · · Score: 1

    To all the spelling Nazis out there: It's not my fault Firefox's spellcheck is the worst on earth. Sorry about getting my "singles" crossed. :-p

    Firefox is open-source, so technically it is your fault that its spell check is so bad. </logic-nazi> :-P

  12. Re:Congratulations! on U.S. Court: Chinese Search Engine's Censorship Is 'Free Speech' · · Score: 1

    You are apparently not an American, as evidenced by your naive belief that all Americans understand these things. It's sad, but true, that many people have the benefit of a constitution that they cannot read and do not understand.

  13. Re:The Thirteen Floor on Mathematician: Is Our Universe a Simulation? · · Score: 1

    Of course we are in a simulation. But only XKCD seems to care about what language that simulation is programmed in.

  14. Re:Blaming the cables? on Tesla's Having Issues Charging In the Cold · · Score: 1

    My experience with solid-state batteries differs significantly from yours. Maybe it's just colder here in North Dakota. :)

    Also, the Prius's heater uses engine coolant. It apparently has an auxiliary electric heat source and water pump to keep the cabin heated when the gasoline engine is shut off, but if they put the car together in a remotely sane manner that should result in redundancy rather than an additional point of failure. If the batteries or the gas engine fails you in the Prius, you still should not freeze to death.

    In a Tesla, though, if the batteries fail you then you will freeze to death. While the same is true for the fuel line and pump on a gasoline car or, much greater risk because of fuel gelling, on a diesel car, I have not personally witnessed a properly maintained gasoline car that started and reached operating temperature fail because of fuel delivery issues, in a climate where -40C happens at least annually and for roughly three consecutive months each year the temperature does not exceed -10C on more than a small handful of days.

    And that's what I mean about the Tesla being unproven. We have a century of gasoline and diesel engine experience so we know how to keep them working in extreme cold and the risk of problems is a known quantity. We also have a solid understanding of how to survive in the event of various problems that can arise. (As an example, if you are stuck in the snow but the engine is running, you ensure that the exhaust is clear so it can escape to atmosphere and then you stay in the car for warmth and safety.) For a hybrid like the Prius, the risks should be both similar to those in a gas car and also mitigated by intelligent engineering of redundant systems. They are still uncommon here, but that is likely more because they have low ground clearance than because they are hybrid. For a purely electric car, though, we have no experience keeping them running in extreme cold and the risk of problems is an unknown quantity. We also do not have a good understanding of how to survive if a problem arises. What do you do if you are stranded in cold weather by a dead battery and help will not arrive until morning?

    Everything I have identified as a risk of electric cars can surely be quantified and likely be mitigated. But with gas cars we have a century of experience to draw on. It will be a long time before the same can be said for electric cars. And during that time, I will let people in populated areas where help or alternative transportation is within a 5-minute walk at all times learn and fix the problems before I incur the risk of a frozen battery leading to my own freezing to death.

  15. Re:Blaming the cables? on Tesla's Having Issues Charging In the Cold · · Score: 1

    I have found that batteries fare very poorly in general in the cold. That includes the starting battery on my car, the battery in my phone, the battery in my camera, and every other battery of any chemistry that I have exposed to the cold. The difference is that an internal combustion engine warms up as you get farther down the road, reducing the risk of failure due to the cold. In other words, cold-related failure of a gasoline car is most likely to occur in your driveway where you can walk inside and survive. It seems that electric cars increase the risk of failure as you drive away in the cold. People who become stranded in a gasoline powered car with adequate fuel and do the right thing by staying with the car tend to survive. Electric cars that accomplish the same results are certainly possible, but not yet proven.

  16. Re:Blaming the cables? on Tesla's Having Issues Charging In the Cold · · Score: 1

    This has always been my concern with electric cars. Batteries do not work well in the cold. I live in the part of the USA where Norwegians settled because it reminded them of home. Except we were having a heat wave at the time, and now it's colder. A warm gasoline or diesel engine will generally keep running no matter how cold it gets, so by the time you are any distance from the safety of your home, you have the safety of a running car with a working heater until you run out of fuel (assuming you have not filled with #2 diesel, which turns to gel in the cold). An electric car that relies entirely on batteries will get you just far enough from home to be in danger when the batteries have, due to temperature, become unable to move the car or to provide heat for the occupants.

    I think an electric car would be great for the summer months. Maybe they should market electric motorcycles. But in the winter, living in a rural area where the ambient daytime temperatures are often -15C and occasionally -45C or worse, electric vehicles have a long battle to prove that they are as safe as their gasoline and diesel powered counterparts.

  17. Re:Slashdot in Greek on GNU Guile Scheme Gets a Register VM and CPS-Based IL · · Score: 3, Insightful

    To those interested in the implementation of programming languages, it is immediately apparent that this is a fundamental change in the compiler behind the GNU Guile system which implements the Scheme programming language, inasmuch as it now has a virtual machine based on the register model instead of the implied stack model, along with an intermediate language in its compilation path that is based on continuation-passing style.

    I think that the lesson here is for everyone: There are many segments of nerd culture, and it is very unlikely that any randomly-selected Slashdot reader understands and appreciates all of those segments. For example, the earlier headline today "Why Transivity Violations Can Be Rational" has no meaning to many readers, even after the title was corrected to spell transitivity correctly. After reading a little about that topic, I see that it is an area of of obvious interest to many nerds.

    That being said, there are plenty of topics Slashdot poorly reports on which are not of interest to any segment of nerd culture, at least not beyond the overlap between nerd culture and the mainstream news where we already read the same information three days earlier except through the words of a literate, competent reporter with real editing before it hit the press.

  18. Re:Belief in science? on Fear of Death Makes People Into Believers (of Science) · · Score: 1

    Maybe the underlying point is that people, on average, rush to believe in something that they don't understand when they are under stress. For people who have rejected religious belief but do not understand science, it is natural that they would rush to "believe" in science. This is a well-understood phenomenon.

  19. Re:The farmer's recourse is to sue to sell on Supreme Court Rules For Monsanto In Patent Case · · Score: 1

    Assuming that there are negative effects of the current patent system in terms of seeds, there is still another side to the coin. Without patent protection, would Monsanto have developed Roundup Ready (TM) soybean seeds? Or, for that matter, Roundup (TM) herbicide? Without these complementary items, soybean production would be much lower. (Due to decreased production by using other means of weed control and/or increased cost of weed control.) Maybe both products would exist without the seeds being protected by patent law, but if, on average, the total production is increased by the availability of such protections, they give society a net gain.

  20. Re:Misleading Title on US Wins Appeal In Battle To Extradite Kim Dotcom · · Score: 1

    Extradition does not decide guilt. It decides whether you are the person being sought to face charges in the other jurisdiction and whether the charges are extraditable to the other jurisdiction. Evidence of guilt is mostly irrelevant to those questions.

  21. Re:I wonder if New Zealand can do other tricks too on US Wins Appeal In Battle To Extradite Kim Dotcom · · Score: 2

    Keep in mind this is an extradition matter. At an extradition hearing, the issues are basically limited to (1) whether you are the person being sought by the other jurisdiction and (2) whether the charges in the other jurisdiction are the type of charges for which a person can be extradited. I am not as familiar with international extradition as I am interstate extradition within the United States, and certainly there will be specific rules spelled out in an extradition treaty between New Zealand and the United States (possibly by way of the UN, for all I know). But those are the real issues: are you the right guy and are the charges extraditable. The extradition hearing is held in and under the procedural law of the court in New Zealand.

    Once arraigned in the court where the charges are pending (the United States federal court), the issue becomes whether you are guilty of the offense charged. And the evidence against you is relevant to that issue. The evidence is largely not relevant to whether you can be extradited. And that's essentially what it sounds like the New Zealand court concluded.

  22. Re:Scheme looks scary and unreadable to me on Two Years of GNU Guile Scheme 2.0 · · Score: 1

    It's not just you, but your conclusion is correct: You just aren't used to it. Once you get used to it, Scheme (or any other modern Lisp) is a very easy language to write clean, effective code in.

  23. Re:Stop the insanity! on Smart Guns To Stop Mass Killings · · Score: 1

    That's why books have covers, so you can judge them without having to read them first. It's the same reason Slashdot articles have blurbs and comments have subject lines.

  24. Re:Why would that be the first step? on Carl Sagan Was On US Team To Nuke the Moon · · Score: 4, Insightful

    It's also proof of concept. If you can launch a nuclear missile from Earth and detonate it on or near the surface of the moon, particularly if you can get reasonably close to a specific position on the surface of the moon, then you can likely do the same in reverse. If you can't nuke the moon from Earth, then you can't nuke Earth from the moon.

  25. Very Good Discussion on BP and Three Executives Facing Criminal Charges Over Oil Spill · · Score: -1, Troll

    I really enjoyed reading all the comments so far. The submission itself was nice and hyperbolic. You can tell it's good journalism because of all the exclamation points and strong bias. There's just nothing quite as insightful, though, as a discussion by people with strong feelings and almost no understanding about what is right or wrong with this news.

    Frankly, I hope nobody bothers to educate himself about any of this. Indeed, the shareholders of BP should all be in prison for life. And BP should also write a check for 120% of its total equity ... to ... um ... I don't know, maybe the dolphins? Anyhow, it should be illegal to enter into a plea agreement on criminal charges. If you are charged with a crime, you should be found guilty and sentenced to ... well, maybe the death penalty. You're a corporation? Then .. well ... oh, I know, let's kill the shareholders. But if there is any dispute over your guilt, you should not have an opportunity to reach a plea agreement. It should be all or nothing. And your guilt should be decided by the jury! Wait, no, not the jury, because the jury system is broken. How about a judge? No, he could be bribed and was probably put on the bench by corrupt politics in the first place. So, your guilt should be decided by ... a duck!

    Because, if anyone bothered to read the article, understand the situation, understand the system at play, educate himself on the reason things work the way they do, and so forth, how else would I get any entertainment without having to pay for cable TV?