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User: aaarrrgggh

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  1. Re:Why not a roof? on France To Pave 1000km of Road With Solar Panels (solarcrunch.org) · · Score: 1

    Poles generally don't have high enough wind loading; you need a grid to achieve that.

    I imagine you could make ~100' wide x 700-1,000' trusses periodically along the road with 500-750kW inverters and make something work, but the challenge is getting it up high enough, and protecting the columns from car crashes.

  2. Personally trying to set up a Ubiquity EdgeRouter to do the same. In my case, there are just a few devices I don't want to have any external access, so I will have a dedicated SSID for them and provide local network access but no routing. Other things I will have to manually switch a network port for a device to give access to the Internet.

    Haven't hit the point yet where I feel a need to do a transparent proxy; my goal is mainly to strip "cloud" functionality off devices that I don't want to have it.

    Try too hard though, and you will drive yourself batty.

    (For the iPhone, I use 1-Blocker. It does a pretty good job, but far from perfect.)

  3. Re:Why not a roof? on France To Pave 1000km of Road With Solar Panels (solarcrunch.org) · · Score: 2

    That was my first reaction as well, but a roof structure would run about $4-5/watt for the system, with panels about 35% of the cost.

    Assuming the roadway is about half the efficiency at peak output, cars traveling at 60mph and keeping 6 car lengths minimum between themselves, twice the cell cost but no superstructure... Your installed cost per watt is 70%, with a 15% performance penalty, or a pro-rata $3.3/W.

    Granted upkeep will be higher, and life likely lower, but might actually work.

  4. Re:Remember the NASA Wind Turbines? on There's a Wind Turbine On the Horizon With Blades the Size of Trump Tower · · Score: 1

    This would be going about 10RPM to stay subsonic if my math is right... Interesting what the low frequency effects would be.

  5. Re:Translation: on Top Telcos Join Facebook Open Source Hardware Project (thestack.com) · · Score: 1

    Some, but it mostly sucks to be a telecom switch manufacturer like Alcatel-Lucent-Nokia. Surprised Digium didn't jump in at the same time.

  6. Re:Those who fail to learn the lessons of history. on CERN Engineers Have To Identify and Disconnect 9,000 Obsolete Cables (vice.com) · · Score: 1

    Interestingly... Or not... it had flooded so many times that they did eventually need to have a hazmat team decontaminate the space. Ant that is why the stock exchange is now a gym...

  7. Those who fail to learn the lessons of history... on CERN Engineers Have To Identify and Disconnect 9,000 Obsolete Cables (vice.com) · · Score: 4, Informative

    Praise Buddha that removing abandoned cables is now a code requirement in the US. I remember an old server room where the manager wanted to raise the floor 6" so they could fit in more cables. 12" apparently wasn't enough...

  8. Re:Stupid headline on Why the Calorie Is Broken (arstechnica.com) · · Score: 1

    That approach generally works, but it can be hard to maintain a healthy balance if you treat 100 Calories of Coke the same as 100 Calories of steak.

  9. Re:I guess it's easier... on Why the Calorie Is Broken (arstechnica.com) · · Score: 1

    "Shit foods" aren't always clear to the consumer. To some degree, they vary between people as well.

    All told though, it isn't rocket science: reduce carbs, eliminate refined sugars, and get exercise. Avoid comfort food habits.

  10. Re:What about independent contractors on Tech Salaries Had Biggest Year-Over-Year Leap In 2015 (dice.com) · · Score: 1

    But what is the billing rate on those contracts? $70-80/hour, no PTO/vacation days? How many billable hours per year?

    I would think 30-50% more pay and 20-30% fewer hours (or more hours/more pay if you prefer) would be attractive to more people, but people's priorities vary.

    In my business, if you can work for $40/hour as an employee, you would be $80 as 1099, and $120 as a corporation.

  11. What about independent contractors on Tech Salaries Had Biggest Year-Over-Year Leap In 2015 (dice.com) · · Score: 1

    "Contractors" are just a term of convenience; what about real independent contractors working directly for multiple clients?

    In Los Angeles, I am dying to find a good consultant that can handle a couple projects (server and networking replacements) and ongoing support of say 4-8 hours per month; I assume a pay rate of $125-135/hour (even $150/hour if I can actually find someone that can implement Samba 4 rather than Windows).

  12. Think of a USB Light... on Ask Slashdot: Affordable Hardware For Remote-Booting USB Devices? · · Score: 1

    I have wanted an easily power-controllable port to hook up USB lights to. There are several good ones, as well as cheap ones; I have mostly GoalZero. Right now, I use an Insteon switching module with an Apple USB power supply driving the lights. Goofy solution, and $50 if you have an extra power supply laying around.

    What I wish I had was a power outlet with built-in zigbee controlled USB charging ports.

  13. Re:Washington DC on At How Much Risk Is the US's Critical Infrastructure? (csoonline.com) · · Score: 1

    Well said. 66kV lines should be on steel poles, but neighborhood 5-25kV lines are easier to maintain in the air. Underground lines are nice when you have a low water table and a lot of wind/snow.

    Honestly, people should just expect less from the electrical utility at this point-- get yourself a grid-tie battery that can isolate itself, and a little portable generator if reliability is important to you. Nobody wants to pay for a reliable utility.

  14. Re:I'd worry more about the squirrels on At How Much Risk Is the US's Critical Infrastructure? (csoonline.com) · · Score: 1

    Squirrels are good for business! One gift-horses us a $2MM project a few years back when things were tight... God save the squirrels... or at least make them very sexually active!

  15. Re:Not surprising on TSA: Gun Discoveries In Baggage Up 20% In 2015 Over 2014 (networkworld.com) · · Score: 1

    Well, assuming 150 passengers average per plane, one out of 25 flights would have had an additional gun on it.

    The real concern is what TSA's hit-rate is-- 80%, 50%, or 20%?

  16. Re:If they don't have anything to hide... on Backdoor Account Found On Devices Used By White House, US Military (sec-consult.com) · · Score: 1

    Personally I prefer a special recessed button to be pressed to go into debug mode, and for the display to indicate debug mode is active. Needs to be fully transparent... But how can you trust that it is?

  17. Re:can someone explain on Benefits of a Homebrew Router (arstechnica.com) · · Score: 1

    Either use it as a bridge/modem, or run Ethernet to the ONT (box outside). If you do the latter, you have to call Verizon to let them enable that port.

  18. Re:Homebrew used to be about doing better. on Benefits of a Homebrew Router (arstechnica.com) · · Score: 1

    Integrating wireless isn't really ideal in many situations-- large house, apartments with high noise floor, etc. The access points can do much better in these situations.

    Personally, I switched to Ubiquity EdgeRouters; you can make it just a plain Linux router if you wish, managing packages individually as needed. If you are sufficiently paranoid, it makes a lot of sense, and there are options from $60-350 on the router side all with the same software, but giving you up to gigabit port speeds.

  19. Thanks, now I need to change private key.

  20. Many of these devices on the market are actually security gateways and supposedly have integral protections. Unfortunately, many are half-assed implementations.

  21. To use a commodity modem rather than a proprietary one, generally. They (as a spass of device, not this particular manufacturer) were also a huge security improvement, as now it was possible to have things like radius-based authentication that could be centrally managed rather than no, or (shared) device level authentication.

    Serial automation networks are a pain, and IP networks offered a number of huge benefits. Unfortunately there was about a 5-10 year period where there was no security, another 5-10 years of bad security, and another 5+ years left in dealing with poor security implementations. You can't air-gap everything out there, and leased lines don't scale for all systems.

  22. Re:Security through obscurity on SCADA "Selfies" a Big Give Away To Hackers (csmonitor.com) · · Score: 2

    It isn't really obscurity, it is a function of initial attack surface. You aren't trying to obscure the fact that John Doe works as a network technician in the controls division, but you are hoping to limit that as an initial attack vector, especially given Mr. doe's proclivity for going to the strip joint on his lunch break. But, if someone does subvert Mr. Doe, you do want the fact that Mr. Smith is responsible for network security audits of the control systems.

    Likewise, giving out all the details of various firewalls and packages used for different functions lowers the barrier for an attacker. Knowing what the helpline sticker on the SCADA workstation could be a goldmine...

  23. Re:invite more people in? on More People In Europe Are Dying Than Are Being Born (phys.org) · · Score: 1

    That is pretty revisionist; the Italians and the Irish did not get along at all. Modest integration didn't really stat happening until the 1960s and 70s, but after that the walls came down quickly.

  24. Re:invite more people in? on More People In Europe Are Dying Than Are Being Born (phys.org) · · Score: 1

    The same could be said of the Irish-American Republicans during the Troubles. It takes time for societies to integrate and meld together and let go of the past.

  25. Re:Nothing revolutionary on Service Provider Builds National Network of Unmanned Data Centers (datacenterfrontier.com) · · Score: 2

    The real challenge is achieving the equivalent of an engineer's "rounds" in an unmanned facility. It takes a lot of instrumentation to tell what could be going bad in an air handler or chiller, and beyond just the instrumentation, it is an insane amount of effort to get the system to simply report exceptions from all that data.

    Simple example: pump seal is degrading and instead of leaking 0.1 gallon/day it is leaking 0.15/day. The engineering doing rounds says "there seems to be more water on the floor" after a couple days; he mops it up and puts down pads to see where the leak is coming from, finding the source of the leak in a week or so.

    The lights-out mentality is run-to-fail. Works great in the right part of the bathtub curve, but otherwise it is a bitch. Most sites like this I have seen are on a maintenance truck route where someone swings by for an hour two or three times a day. Not the same level of commitment though.