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Viewing profile — eigenvector

eigenvector

HN member
Joined
Mon, Nov 07, 2011, 5:46 PM UTC
HN karma
6,385
Public activity
731 items

About eigenvector

Electrical engineer operating a 100 MW wind farm.

Vancouver Island, Canada.

Recent public activity

  1. comment
    Comment #38340732

    It's not a hidden charge because as you said, you can still travel without paying it. And it provides a method of price discrimination between people who care where they sit and th…

  2. comment
    Comment #34194084

    Most of the van life you see depicted on social media is actually this though - people who've rented a van short-term for as much as a hotel room or who live in a house and have a …

  3. comment
    Comment #27991279

    If people want to use less electricity, they need to have reasonable options to do so in the marketplace without needing a computer engineering degree to figure what sleep states t…

  4. comment
    Comment #27913599

    Red tape is definitely an issue, but freight costs to Nepal are also extremely high. It's a landlocked country with very poor transportation networks. Air courier (eg DHL) to Kathm…

  5. comment
    Comment #27535612

    Any audio encoder - lame is an open source option for mp3 - will have low pass filters. Most encoders will filter inaudible frequencies to improve compression even if not told to, …

  6. comment
    Comment #27476740

    An important and related fact, addressed in the article, is that Amazon currently escapes consumer product liability laws because they are neither seller nor manufacturer. But they…

  7. comment
    Comment #27336620

    Search for any Costco-exclusive item on Amazon and you'll find exactly this strategy at work, complete with 300% markups on the Costco price.

  8. comment
    Comment #27318128

    Air source heat pumps are fine for the places where most Canadians live including southern Ontario & Quebec and coastal British Columbia. If you live in Winnipeg or Saskatoon it mi…

  9. comment
    Comment #27244037

    Are GP mentioned, the safety procedure to protect you from a line you're working on becoming inadvertently energized is temporary protective grounding. A grounding jumper is connec…

  10. comment
    Comment #27113799

    > I personally believe that DHS should make this sort of thing illegal for critical infrastructure. I can't speak to non-electrical infrastructure, but the NERC CIP "high impact" s…

  11. comment
    Comment #26880270

    Thanks for articulating this as I never understood why iOS suffers from this phenomenon. The only other place I've seen "typing too fast" result in garbled input is on Android base…

  12. comment
    Comment #26528292

    No, but you at least realize an analog filter is a thing that exists. You don't remember the specifics, but you could study them if you needed to.

  13. comment
    Comment #26528288

    As a practicing EE (power systems), I agree. It often becomes clear when someone is unable to distinguish a practical limit (this equipment is not rated for X, our operating proced…

  14. comment
    Comment #26432575

    The ostensible benefit to DC distribution in homes is to be more economical and simpler for devices that already run on DC - not to redesign ever device ever made to accept mains-v…

  15. comment
    Comment #26432491

    As you note, for facilities like data centres that are engineered for a specific type of load, a building-level rectifier makes sense. For a home where you have many devices using …

  16. comment
    Comment #26432483

    Even if power generation is distributed and localized, you still need higher voltages than what is in a home to transmit it unless you're talking about not having a power grid at a…

  17. comment
    Comment #26432479

    As it is, typical home electrical systems have no active components. There are just wires, panels and bimetallic circuit breakers. These systems are nearly maintenance-free over a …

  18. comment
    Comment #26313048

    In several instances I've seen, it's because that function has been outsourced but the company doesn't want to advertise that, even to its own employees. If you could talk to that …

  19. comment
    Comment #26244547

    You should check if your device can run a third party ChromeOS distribution that is still updated, like Cloudready. That's what I did with my Asus CN60 that would otherwise have be…

  20. comment
    Comment #26244518

    Some of the EOLed devices are commodity x86 hardware and can run the latest Linux distros or Windows 10 if the bootloader is unlocked, which really shows how arbitrary Google's end…

  21. comment
    Comment #26234949

    Diesel engines for power generation will have a governor control that sets the throttle based on the load to maintain whatever rpm is required for 60 Hz (constant speed control). T…

  22. comment
    Comment #26234855

    Correct, most modern locomotives are diesel-electric and not fundamentally different from a large standby generator that would be found in a hospital or data center. The locomotive…

  23. comment
    Comment #26220252

    I have both a technical and a practical answer for you. The technical answer is that demand response resources are considered dispatchable or interruptible load. Load shedding is t…

  24. comment
    Comment #26219889

    Load shedding is implemented at the distribution substation level, not individual customers (unless they are very large customers connected directly to the high-voltage network lik…

  25. comment
    Comment #26219856

    A significant gap in culture between the United States and many other developed countries is the idea that there can ever be an "entirely you thing". Even your own health and well-…