hank_and_deans

@hank_and_deans@lemmy.ca

• ⁨Comment⁩ on ⁨In a blind test, audiophiles couldn't tell the difference between audio signals sent through copper wire, a banana, or wet mud⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  I was buying a receiver and speakers in 2020 and when it came time to pick out speaker wire, the salesperson walked over to where the wire was and began the pitch…

  Salesperson: so when the frequencies are higher the electrons end up traveling only on the outer layer of the wire instead of in the middle…

  Me: yeah, skin effect, I did electrical engineering

  Salesperson: ah, so I guess you know you don’t need this then (pointing to gimmicky monster speaker cable that had a single strand of wire in a spiral around the main bundle with a clear jacket so you can see it)

  Me: correct (grabs the cheapest 16awg)

• ⁨Comment⁩ on ⁨In a blind test, audiophiles couldn't tell the difference between audio signals sent through copper wire, a banana, or wet mud⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  Not true. Corruption happens in digital signals quite often. The effects are different of course: packet loss, garbled audio, the green dots the poster you replied to described. I have seen it all.

  If it “worked or not” we wouldn’t need things like checksums or error correction.

  Source: did electrical engineering, then 25 years in networking.

• ⁨Comment⁩ on ⁨Americans’ junk-filled garages are hurting EV adoption, study says⁩ ⁨⁨5⁩ ⁨months⁩ ago⁩:

  I have some good news for you: www.geotab.com/blog/ev-battery-health/

• ⁨Comment⁩ on ⁨Americans’ junk-filled garages are hurting EV adoption, study says⁩ ⁨⁨5⁩ ⁨months⁩ ago⁩:

  I have one of those Bolts.

  Not only was the battery replaced, the 8 year warranty on it was reset. Also, the idea that EV batteries die after a couple of years like in phones was unfounded. The batteries in EVs are actually properly temperature regulated unlike the ones in mobile phones. The primary degradation in an EV battery happens when the battery is new and stays basically flat for the rest of its life.

  EVs have been on the road long enough for studies to determine that most batteries will last at least as long as most people will own the car.

• ⁨Comment⁩ on ⁨Americans’ junk-filled garages are hurting EV adoption, study says⁩ ⁨⁨5⁩ ⁨months⁩ ago⁩:

  I was paying $385 per month in gas for an Astra hatchback, which is not exactly a gas guzzler, though I did live in the mountains at the time.

  I replaced it with a Bolt EV and the hit to my electric bill was about $50 with the same commute.

• ⁨Comment⁩ on ⁨Best way to get IPv4 connectivity to my self-hosted services⁩ ⁨⁨8⁩ ⁨months⁩ ago⁩:

  That is correct. There is a trick where you can set the source ip to the ipv6 mapped ipv4 ip it originally came from. I have implemented that in a transparent tcp proxy I worked on some years ago, but I am not sure if nginx supports that.

  I should look into that actually. It would be useful to me as well.

• ⁨Comment⁩ on ⁨Best way to get IPv4 connectivity to my self-hosted services⁩ ⁨⁨8⁩ ⁨months⁩ ago⁩:

  It’s merely a tcp proxy. It doesn’t even have to be http since it has no idea. The trick with tls is that it can extract the requested host name via SNI.

• ⁨Comment⁩ on ⁨Best way to get IPv4 connectivity to my self-hosted services⁩ ⁨⁨8⁩ ⁨months⁩ ago⁩:

  Or just use Nginx stream proxy, and all the encryption happens on the endpoints. No need for certs on the proxy at all.

  This is how I make https and mqtts available on ipv4.