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Joined 2 years ago
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Cake day: June 23rd, 2023

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  • Biometrics are not usernames. They are physical identifiers and unlike usernames you can’t change them.

    I used to work in a datacenter that required you to go through a mantrap to access. It required three things:

    1. Something you have (a card key)
    2. Something you know (a PIN)
    3. Something you are (biometrics)

    To get to the datacenter floor you use a card key to open the door to the mantrap. It’s a small vestibule about the size of a phone booth. Once inside the door closes. You then enter your PIN on a keypad and place your hand on a biometric scanner. Once your hand is recognized the inner door opens and lets you into the datacenter. I was told the mantrap also weighed you and compared that with previous trips through to make sure somebody else didn’t sneak through with you.






  • Even home battery solutions. We have solar panels & a Powerwall. Were part of a Virtual Power Plant along with around 1500 other Powerwall owners in the region. During peak usage in the summer all our PowerWalls feed back to the grid so that our utility provider doesn’t have to spin up expensive (and dirty) peaker plants. We get paid a premium for the power we provide during these events.

    I saw articles here on Lemmy just a month or two ago that Tesla successfully tested a VPP in California that consisted of 100,000 PowerWalls.



  • Which is a rather bizarre claim to make. I travelled to NZ and Australia about 20 years ago. When I went through NZ customs they wanted to see proof of where I was staying and more importantly that I had airline reservations to leave NZ. So they wanted proof I was just visiting and planned to leave in a timely manner.

    When I went to Australia the customs officer just stamped my passport and let me through, no questions asked.

    Why deal with the hassle of NZ as a stepping stone if I could just go straight to Australia and avoid that hassle?









  • Part of the problem is how insanely complex modern cars are. Modern cars can have 30+ different ECUs, and knowing which ECU does what can be difficult to figure out. Programming ECUs is also a bit of a dark art, and a model line of cars can go through a number of ECU versions over time.

    I used to own a car that the battery regularly died on. Eventually, after multiple dealer visits, a couple replaced batteries, and hours of internet research, I found two service recalls that described my cars symptoms perfectly. The problem for me was my cars VIN fell outside both recall notices. But I took printouts of both recall notices to a dealer and they agreed to look into it. They confirmed my car had buggy firmware, annd ended up installing updated firmware on two different ECUs. I never had a battery problem again after that. I’ve worked in tech for 30+ years and I wouldn’t have wanted to tackle that on my own…