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User: kyubre

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  1. I'm not surprised that they were surprised. on Once-Shrinking Greenland Glacier Is Now Growing, NASA Study Shows (nbcnews.com) · · Score: -1, Troll

    A slight increase in ocean temp leads to more water in the atmosphere, which creates more snow, which increases the albedo of the planet, which lowers temperatures.

    While I agree we should continue to be less consequential, no one has been able to convince me that we need to short circuit free market solutions with global rule that will fail so surely as OPEC members cheat every single time.

  2. It's still a wild west frontier... on Bitcoin Pioneer Says New Coin To Work on Many Blockchains (bloomberg.com) · · Score: 1

    It's still a wild west frontier primarily of interest to currency speculators, but moves such as this may open doors for those whose interests are in using digital currency as a low cost transactional tool for commerce, rather than the object of commerce itself.

  3. After 8 long years, the Nokia N900 done right. on Samsung To Let Proper Linux Distros Run on Galaxy Smartphones (theregister.co.uk) · · Score: 2

    Unfortunately, I just bought a Galaxy S7, so I'll probably sit this one out like I did with the N900 launch. Hopefully, it's still an option with my next upgrade cycle in 2 to 3 years, unlike the Nokia N900 that died on the altar of Redmond before I was ready to upgrade.

  4. Reganomics 101 on Oregon Passes First Statewide Bicycle Tax In Nation (washingtontimes.com) · · Score: 1

    Government's view of the economy could be summed up in a few short phrases:

    • If it moves, tax it.
    • If it keeps moving, regulate it.
    • And if it stops moving, subsidize it.

    --Ronald Reagan (1986)

  5. The Island (2005) with Ewan McGregor on Slashdot Asks: What's Your Favorite Sci-Fi Movie? · · Score: 2

    A thought provoking and well done trump through a serious possibility. Adding it to the list here as I find favor with nearly all the suggestions but found this one mysteriously missing.

    http://www.imdb.com/title/tt03...

  6. A lithium powered energy economy on Interviews: Ask Lithium-Ion Battery Inventor John Goodenough a Question · · Score: 1
    Mr. Goodenough,

    It seems that the world's reserves of lithium are far more centralized than nearly any other energy source. Do you foresee a way to avoid the geopolitical struggles for lithium ore that we experience with oil reserves?

    Do you see an upper limit on the ability to recycle and reuse existing lithium batteries (those that have avoided a landfill)?

  7. If you have to wait... on Americans Are Having Less Sex Than 20 Years Ago, Study Finds (arstechnica.com) · · Score: 1

    If you're in your 30s and still have to wait for your mom to leave the house before inviting that special someone over, you're probably not getting much!

  8. A clear case for our times? on Microsoft Introduces GVFS (Git Virtual File System) (microsoft.com) · · Score: 1

    This sounds an awful lot like the days when Clearcase served up a database over NFS to an SMB server as a file system "view" of a repository .

  9. Re: AC's Tech Plan on Clinton Tech Plan Reads Like Silicon Valley Wish List (usatoday.com) · · Score: 1

    Wife files for divorce, gets a restraining order instead of a handgun. Wife and perp enter into a permanent divorce settlement. Tragic, but nothing more than a bad case of the domestics.

  10. What would be interesting... on Lens-Free Flat Cameras Make Use of Pinhole Technology (npr.org) · · Score: 1

    What would be interesting is if such a sensor array could efficiently and wirelessly tether itself to the image processing engine. The potential surveillance applications are mind boggling.

  11. Re:What? on AMD: It's Time To Open Up the GPU (gpuopen.com) · · Score: 1

    I'm really rather curious as to what you can't do on BSD that you can do on Linux today, with the exception of some hardware support.

    In terms of app support, there are very few useful open source projects that haven't been ported to FreeBSD/PC-BSD. The exceptions take the form of binary blobs built by vendors (Chrome, Flash, VirtualBox). But even with those, there are truly open source subsets that retain a great deal of functionality. On FreeBSD, I've switched over to Xen for virtualization and use KVM on Linux. Via libvirt and friends I can fairly effortless share VMs between Linux and FreeBSD with very similar setup scripts.

    Things that rely upon Oracle Java can also be a source of frustration. That being said, there is a Centos 6 binary compatible API for FreeBSD that can run the native versions of things like the JRE and Flash.

  12. Re:What? on AMD: It's Time To Open Up the GPU (gpuopen.com) · · Score: 1

    I'm going to make an interpretive guess, and assume that if streaming video services is your thing, you'll want to be running Android.

    As for myself, I do 99% of all my work via network connections to big iron somewhere far away. My main workhorse for such things is an old T500 Lennovo running PC-BSD and the i3wm window manager (fudging awesome).

    The FreeBSD port to Arm is shaping up very nicely and I wouldn't mind contributing some effort to it myself, but my rational hope is to get Arch up and running on the Pine with reasonable video for the kind of terminal work I do all day long.

    None of the Chrome stick type gadgets would suit my needs, but I'm hopeful to be able to make something with the Pine A64.

  13. Re:What? on AMD: It's Time To Open Up the GPU (gpuopen.com) · · Score: 1

    My $15 Pine A64 has shipped!

  14. Re: How smart? on Surprising Support Among Americans For Purchasing Smart Guns (jhsph.edu) · · Score: 1

    Actually, at the time I had three ~ teen age boys. I offered a reward of $50 if they could open it without destroying it. My thinking was that for $50, they'd sit there and play with the combination of 5 buttons for hours. And they did.

    And still the damned thing sits there locked.

    My point being is that they are not an impenetrable barrier, but they are incredibly tamper resistant.

  15. If it worked... on Surprising Support Among Americans For Purchasing Smart Guns (jhsph.edu) · · Score: 1

    If it worked, wouldn't gun control nirvana enclaves like New York and Chicago mandate such a thing for their boys in blue? New York already requires a 12 pound trigger pull on its department issued Glocks (absolutely insane!). The number of officers killed with their own guns has gone down over the years, but it is not zero. There must be a reason why not a single law enforcement agency advocates this stuff except upon the civilian population they are charged with controlling.

  16. Re: How smart? on Surprising Support Among Americans For Purchasing Smart Guns (jhsph.edu) · · Score: 1

    I accidentally changed the combo to one such safe in 2006. I still can't get the damned thing open.

  17. Electronics, the new Erector Set. on Merry Christmas - Be an Erector Engineer! · · Score: 1

    I've four sons, aged 8 to 28. They each got an Arduino powered kit from Sparkfun.com. After gifts where opened, and appetites satiated, we all spent several hours in my home lab learning how to solder, troubleshoot and eventually change the software running to power their boards ( a mix of a Simon Says game and digital alarm clocks).

    I remembered building miniature bulldozers and tanks with my dad out of our Erector Sets and then having "pulling" contest to see who had the best design. I enjoyed my boys jesting about who could make the most useful mod to their kit.

    Over the years, Erector Sets gave way to Kinnex, and Kinnex gave way to video games, But our ability as parents to ignite creativity has never changed, only our commitment to do so.

  18. Re:IPsec or simple ssh like tunneling on Ask Slashdot: Security Monitoring Company That Accepts VPN Video Feeds? · · Score: 1

    Great suggestion. I may try this on my next iteration of the home brew thing I've cooked up based on ssh (see below)

  19. Re:IPsec or simple ssh like tunneling on Ask Slashdot: Security Monitoring Company That Accepts VPN Video Feeds? · · Score: 2

    Please pardon my ignorance and be gentle in rendering a /. style re-education, but isn't this precisely what https transports are supposed to do?

    I set up a similar thing for some family members but its purpose is only to monitor and document any intrusions (they already have a commercial security system, that apparently doesn't work all that well). The cameras aggregate to a single machine within their lan and my (remote) server periodically scp's all the video/picture data from all the cameras to my location where it is further consolidated to a single video file per day, per camera.

    I don't think its any more vulnerable than any other ssh connection using secure keys. It's been running flawlessly for 3 years, but if I had it to do over again, I'd probably stage the data on an https file server and skip the ssh stuff.

  20. Just got a several boxes of failed attempts... on Ask Slashdot: Buy Or Build a High End Gaming PC? · · Score: 2

    Had a friend who is quite bright, but inexperienced with root cause elimination. 6 months ago, he went down the path of "building" his own home theatre/PC gaming rig. After several rounds of buying what the online rags suggested as the best bang for the buck, he had three collections of incompatible parts and not one working PC.

    I'd done him a couple of favors in the past and he was emotionally defeated with the whole project. He ended up giving me the whole lot. The one thing all his platforms had in common was Gigabyte motherboards with a high density buzz words on the spec sheet and rave online reviews. I've not yet diagnosed all the problems, but I now have a heck of a HPC system after swagging the Gigabyte board for a ASRock that actually retails for 40% less. Turns out that dual bios feature of Gigabyte boards, is REALLY flaky.

    https://www.google.com/search?...

    At the end of the day, unless you are ready to learn troubleshooting skills related to the tasks, you probably ought to buy something you can box up and ship back if it doesn't work.

  21. Re:Many a young engineer.... on The Quest For the Ultimate Vacuum Tube (ieee.org) · · Score: 1

    ALL the charge carriers are ions - atoms or molecular groups with an unequal electron and proton count, and thus a net charge - which may be either positive or negative (and you're usually working wit a mix of both).

    Yes, you can argue that hole propagation is actually electron movement. But holes act like a coherent physical entity in SO many ways that it's easier to treat them as charge carriers in their own right, with their own properties, than to drill down to the electron hops that underlie them

    For me the big tell is that they participate in the Hall Effect just as if they were a positive charge carrier being deflected by a magnetic field.

    Thank you for the well thought out and logically coherent description of the underlying behaviors at play.

    The "hole" flow as typically dumped on the unsuspecting student of semiconductors, really doesn't mesh well when mated to the metal conductors that source and sink the current flow to them. As mentioned previously, my mental model of semiconductors and the like is a fireman's water brigade, were either the majority of the line has buckets or empty hands.

    For the line where there is but one set of empty hands (no bucket), the distant observer would see that "hole" flowing back to the source. For the bucket brigade line with one bucket in motion, the observer would see the flow as going to the sink/destination. In either case the motion of the water, (or the electron) is exactly the same - only the perception of the charge carriers change. The difference being whether or not the majority of carriers are "depleted" or not.

    I'm keenly interested in finding more material to read up on the observed Hall effect measurements. Thanks again for your contribution to the discussion.

  22. Re:Many a young engineer.... on The Quest For the Ultimate Vacuum Tube (ieee.org) · · Score: 1

    I didn't get hole flow/electron flow thing till I pictured it as a fireman's water bucket brigade operating in one of two modes and as observed from a 3rd party vantage point.

    Imagine a single water well, and two fire brigades extending off in opposite directions. One bucket brigade has a bucket for every person on the line except one. The other has but a single bucket. They are both moving water from the well to their corresponding fires, but to the third party observer, he sees a bucket moving in the "right" direction (towards the fire), and in the other line, he sees a single "bucket hole" moving towards the well.

    With few exceptions, most current flow tends to be electron flow. Following the bucket brigade analogy, "P" and "N" type doping determines if most "charge carriers" have buckets or empty hands...

    Of course, I don't know for sure, but this model tends to work very well for me and well, I've never actually seen it in real life.

  23. Re:Many a young engineer.... on The Quest For the Ultimate Vacuum Tube (ieee.org) · · Score: 1

    Reminds me of the negative vs positive logic arguments as DTL and RTL gave way to TTL (along with specialty, high speed ECL, which retained 'negative' logic).

    While it is true that a "charge" migration can be instrumented and measured as being either positive or negative, the only physical thing that moves is an electron. Nothing else, and by the way - there is no "ether" that fills the void either.

    This all reinforces my point that there is at least some benefit from learning how to troubleshooting a pentode based amplifier.

  24. Re:Many a young engineer.... on The Quest For the Ultimate Vacuum Tube (ieee.org) · · Score: 1

    If there is no continuous electron flow, there is no continuous hole flow. From the first sub-nanosecond a circuit is completed, it is not a "conceptual" hole that moves, but an electron. There is an appearance of hole migration across molecules, but such an analogy could claim that the valley of a tidal wave is what wipes out coastal villages, when in fact, the valley is the artifact of the crest.

    Perhaps you can point to the hole flow in an electron tube>

  25. Re:Many a young engineer.... on The Quest For the Ultimate Vacuum Tube (ieee.org) · · Score: 1, Offtopic

    No its not. Hole flow is the migration across molecules, of a free valence band. Why is it free? Because the electron that was there, moved. Ergo, all electric current is electron flow and every schematic drawn by every semiconductor engineer got the arrow backwards.