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User: willy_me

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  1. A fuse would not protect from this sort of over voltage damage. Fuses are slow and by the time sufficient current is flowing to blow the fuse - the circuitry is already shot. Electronic fuses (MOSFETS with controllers) are much faster and do not need to be replaced. Most devices use current limited load switches to limit surge current and prevent damage. But even these devices, while better then fuses, would not help. ESD protection diodes would help but they are not designed for large amounts of energy and will quickly burn up. With the amount of energy this guy was adding, the diodes will literally pop off the PCB. USB is quite well protected (now, not originally) but all consumer electronics will break when you have hundreds of volts applied. Well, ethernet would at least prevent the damage from cascading into the device - but few interfaces are protected like ethernet.

  2. Marketing and manufacturing capability.. on Samsung Chips Will Get Faster and Easier on Your Battery in 2020 (cnet.com) · · Score: 4, Informative

    The quoted manufacturing capability is no longer accurate. It is now artificial. Back in the day, a 65nm process was indicative of a manufacturing process that could create features with a minimum pitch of 65nm. Then people started to create FinFET transistors - a process that allows for denser transistors. But how to sell such a process? The answer is to call it a 0.6*65nm process -- when it is actually still a 65nm process. The idea is that the new FinFET transistors result in the same transistor density that would have been achieved with traditional transistors and a 0.6*65nm process.

    So the quoted pitch is now an indicator of transistor density -- sort of. Marketing also has a say so one should not read too much into it. Smaller is better but only for the same fab. It is not a good metric for comparison between fabs.

    NOTE: The 65nm and 0.6 numbers are just for this example. Actual values will differ. I believe 14nm parts use a 22nm process - but one should verify if you want exact numbers.

  3. Re:1 of my cats is definitely smarter than the oth on Cats Can Recognize Their Own Names, Study Suggests (gizmodo.com) · · Score: 2

    A friend got drunk and booted his cat one night. For the next several months he had to sleep with his door shut. If the cat got in it would take a shit on his chest while he was sleeping. I am told it took him several months to get back on good terms with the cat. Lesson to be learned is that cats can have a good memory and understanding of their environment. They can also often tell the difference between human accidents and on purpose. Applying flea medicine is definitely on purpose so you should expect the cat to hold a grudge for a while.

  4. Remember when the first iPhone came out with the first non-replaceable battery that was good for 1000 charges? At the time, most other cell phones could only handle 100 charge cycles. By limiting the min / max voltages, Apple was able to change the entire industry. Now all phones limit the charge / discharge voltages in order to preserve battery life.

    But even with 1000 charge cycles, if you are charging daily then it will die in the third year. Manufacturers will still be able to sell replacement phones.

  5. The internal battery charger already does this so you do not have to.

  6. Re: Did anyone... on Flood of 4K James Bond Leaks Further Point To iTunes Breach (torrentfreak.com) · · Score: 1

    capture the full lossless detail of reality

    Of course not, but one can capture the full lossless detail observable by a human being. There is an entire field of study devoted to this concept.

    The point was that if you start with a compressed file, after decompressing there is no way to encode the file while achieving quality greater then the source. To make it equal to the source you would have to compress with a lossless compressor thereby generating a file that is at least an order of magnitude larger then the source. So having an Nvidia card capture the video is fine, but far from ideal.

    My message was intended more for the parent greenfruitsalad. Decrypting the source is much more desirable then attempting to capture the output on a video card, hence the reason why this is news.

  7. Re: Did anyone... on Flood of 4K James Bond Leaks Further Point To iTunes Breach (torrentfreak.com) · · Score: 1

    It can not be lossless if the original source is not lossless. If we are talking about iTunes streaming then the best possible quality that any decoder can do is the original lossless source minus iTunes compression. When encoding the resulting stream you are double encoding. This results in an unexpected, and sometimes quite significant, loss of quality.

    So how does one achieve the best possible quality without access to the original lossless source? You have to break the encryption on the iTunes compressed version. This way you do not have to encode the the video and there is only one level of video compression. On top of that it is the most efficient, highest quality video encode you can get for the resulting file size. This is what the article is referring to.

    When the original distributed video can not be decrypted, some people attempt to minimize the loss of quality by encoding the captured video using significantly higher bandwidth settings then were used to encrypt the original video. This helps but the resulting file size will be several times that of the original distributed video and there will still be a reduction of quality. Decrypting the original source is a huge step up.

  8. Re:Why is the department of defense on DARPA Is Building a $10 Million, Open Source, Secure Voting System (vice.com) · · Score: 2, Informative

    The US wants stability (because it is more profitable) so it promotes freedom and democracy around the world. A secure voting machine sounds like exactly what is required. Without some way of maintaining a democracy after the fact, what point is there in military intervention?

    Good luck getting these machines used in the US. There is too much money pushing for existing proprietary solutions. So I think one should not assume that this system is designed solely for us. Their target will be global.

  9. Re: Going Green, is same as Organic on Apple Is Now Forcing Its Suppliers to Go 'Green' (afr.com) · · Score: 3, Informative

    LEDs must be used in modern light fixtures that have improved cooling. Older light fixtures were designed for incandescent bulbs and were often sealed with no air flow. This is fine for incandescent bulbs which can handle very high temperatures. But LED bulbs, despite generating less heat, will run too hot and incur a limited lifespan.

    So if one is upgrading to LED lights, be certain to check each fixture and change those that do not facilitate cooling of the LED bulb. If you do not, the LED lights will die early. FYI, compact florescent bulbs have the exact same problem.

  10. Just use your nipple... on Samsung's Newest Phones Read Your Fingerprints With Ultrasonic Sound Waves (cnet.com) · · Score: 1

    So long as your lover is not a sadist, you should be fine. Search Google, found YouTube

  11. Re:I remember reading on Scientists Dressed Horses Like Zebras To Figure Out Why They Have Stripes (vice.com) · · Score: 1

    Yes, horseflies should be able to evolve faster then the zebras to overcome such defenses. Lions make more sense.

  12. Re:Article confuses ports and protocols on New iPhones To Stick With Lightning Over USB-C, Include Slow-Charging 5W USB-A Charger In Box (9to5mac.com) · · Score: 1

    The USB-PD protocol is physically tied to USB Type-C signals. It can not be implemented over a Type-A connector. You require the CC (Configuration Channel) lines to facilitate USB-PD communication. The Type-A connector instead relies on specific pull-up / pull-down resistors on the data lines. It is nasty compared to the newer, USB Type-C / USB-PD standard.

    I suppose Apple could use an active Lightning to Type-C cable to implement USB-PD. It would not be simple and would require that the Lightning connector be able to facilitate configuration data.

  13. Re:Why is this a surprise? on Neanderthals Were Likely Able To Hunt Over Significant Distances With Spears, Study Finds (nature.com) · · Score: 4, Interesting

    Sure, like wolves and coyotes. The problem the hybrids face is that there is typically no space in the environment for them. Both wolves and coyotes have evolved to be optimally suited for their environment and there is no space in between -- the hybrids are killed off. The only exception to this rule is when humans get involved. Where humans killed off the wolves in eastern Canada, hybrids are now well established.

  14. It is not the song duration, but the intro. on The Economics of Streaming is Making Songs Shorter (qz.com) · · Score: 4, Insightful

    Streaming has changed modern music - but it is the song introduction that has changed, not the duration. A song has to "hook" people within the first 15 seconds or else the listener will hit next. When this happens, the streaming service does not have to pay the artist. With traditional radio, songs could start up slowly. This gave artists had more flexibility in how the music was presented. With streaming, artists have around 15 seconds to sell their tune. It is limiting - but the price one has to pay for the way streaming currently operates.

    **Note; I have forgotten the exact time so 15 seconds might be off. But it is close to 15.

  15. Re:Truth on Google Discontinues Chromecast Audio (techcrunch.com) · · Score: 1

    The product is missing features compared to the more integrated solutions. The best solutions will generate their analog signal at full scale and then inform the amplifier how much the signal should be amplified. This provides maximum signal quality. This Google product generates an analog output but has no way of informing to the amplifier what the amplification should be. To adjust volume you have to decrease the amplitude of the signal which induces signal loss.

    Users who want optimum signal quality can still get it by setting audio output to 100% and then using the amplifier / speaker settings to adjust volume. Great - but most people want to use their digital devices to control the audio. Play, pause, forward, next, and volume all controlled from the same device.

    The current Chromecast probably operates just like AirPlay. Lossless audio transmission and full control from the transmitting audio device. I can see why Google would kill the Chromecast Audio given the advantages of more integrated solutions. The market now is filled with such solutions - unlike when the Chromecast Audio was release.

  16. Re:No, they are not serious on AMD Gets Serious About Chromebooks at CES 2019 (cnet.com) · · Score: 1

    The difference between manufacturing nodes is not that noticeable at low operating frequency. Larger sizes have larger dynamic operating costs - but the static operating costs are determined more by design then by frequency. So for Chromebooks running at a low frequency, one has to look at changes made to the silicon to see if AMD is taking them seriously. The only thing we know is that there are two new part numbers so AMD _might_ be taking them seriously. Or not... time will tell.

  17. Re:Why the cable? on USB Type-C Authentication Program Launched (newatlas.com) · · Score: 1

    Including an IC to verify the current capacity of the cable is not a bad idea. It is the price one has to pay for having a "one size fits all" solution. A quick check of Monoprice shows a short USB Type-C cable going for $5 while the certified Lightning cable goes for $6. I would not call that much of a price premium.

  18. Re:Why the cable? on USB Type-C Authentication Program Launched (newatlas.com) · · Score: 3, Insightful

    The USB Type-C standard already mandates an active cable if you want to utilize the full 5A that the standard can supply. It might not have information on the condition of the cable - but nothing can prevent users from being stupid. It is just another level of security which, with all the other protections, helps prevent damage when power traverses USB.

    It is easy to add an IC to a USB connector - they are basically designed for it. See this part to see how it is typically done. So adding the ability to verify the cable does make sense for workplaces that require the security. It is just too easy to, for example, add a keylogger to a cable.

    No computer manufacturers would ever get away with requiring authenticated cables. Apple might try but the public outcry would be immense. That being said - having it as a bios setting is exactly what a certain subset of users require.

  19. Re:It's still a fairly bad idea on Canonical Shares Top 10 Linux Snaps of 2018 (betanews.com) · · Score: 3, Interesting

    You don't need snap to install VLC as it's already included in the repositories.

    But this gets you an old version of VLC. For the latest version you have to either compile from source, or (possibly) switch to the unstable repository. It is a pain - the snap solves this problem thereby making running VLC on Linux easy. It is a necessary solution if we are ever going to see Linux used by non-IT people.

    In short it's a fairly bad idea. It tries to reproduce one of the worst aspects of Windows, namely that you ship around self-contained exe files which get executed on a double click.

    There are far more things wrong with Windows. For starters, applications were not self contained. Recall DLL hell? I have not used Windows in some time but a major problem with it was that applications would put shared libraries (DLLs) in the Windows system directory resulting in numerous conflicts. Self-contained exe files are the solution - not the problem.

    I personally like the idea of having a solid, well tested base system supported by repositories. The applications are mostly static and rarely see updates. And if I want to run the latest version of an application, a snap allows me to do that without modifying the base system. It is great - I can try out applications then remove them without buggering up my OS.

    My only issue with snaps (or flatpak) is that the applications do not integrate with the desktop environment as well as they should. This is noticeable in the open and save dialog boxes. Some implementations are good but not all. Overall, I am quite pleased with how they work. It is great to have the latest version of LibreOffice always available.

    But I have to say, if "NotePad++" is one of the top 10 snaps.... not a good sign. I tried it out just for the hell of it. Great to have on Windows but on Linux - what a POS.

  20. Re:Likely be a SocioNext SC2A11 on Banana Pi 24-Core ARM Server Running Ubuntu Breaks Cover (hothardware.com) · · Score: 3, Informative

    The pictured board is not the one being described. It is for comparison purposes. The board is a "SynQuacer E-Series 24-Core Arm PC Motherboard" -- some info can be found here.

    If this new Banana Pi 24-core board is priced affordably, it could be quite interesting. They should be able to offer a much more affordable board then the referenced SynQuacer.

  21. Well, if the transmission power is increased then you could reduce the amplification on the receive end thereby facilitating new mobile GPS applications. Although I agree that the term "power" is ambiguous and a poor choice of wording by the submitter.

  22. When posting, select Options and set the "Comment Post Mode" pull-down menu to plain text. Either that or write valid HTML messages.

  23. It is about the future - not right now. on Germany Refuses To Ban Huawei, Citing Lack of Real Evidence (phys.org) · · Score: 5, Interesting

    The problem that Huawei potentially brings is that the Chinese government could force them to embed spying functions into future firmware updates. Such a move would be difficult to counter once a country is highly reliant on Huawei for providing cell services. I am not suggesting that Huawei wants to so - but the Chinese government could easily dictate that they do so. In most other countries such requests would be challenged in court. For example, like how Apple refused to unlock a shooters iPhone a couple of years back. In China, we would never even know.

  24. Re: Ah... Where will this end? on President Trump To Use Huawei CFO As a Bargaining Chip (politico.com) · · Score: 1

    Not just a Canadian - a former Canadian diplomat. Arrested and no reason given. Relatively safe to assume the arrest was politically motivated.

  25. Re:Don't get too excited. on Japan is Giving Away Free Houses (fastcompany.com) · · Score: 1

    They give you grace because you're a foreigner, but that still doesn't mean they don't get annoyed by you messing up their neatly defined system.

    Like most places, Japan is very welcoming of foreign visitors. They understand that your culture is different and that you are not intentionally being an ass. But if you plan on staying then you had better learn to adjust your behavior. Their tolerance only lasts so long and they do not want you forcing your culture into their daily life. They same can be said for any culture.