[-] qjkxbmwvz@startrek.website 2 points 3 hours ago

you cannot observe something without interacting with it in some way

Elitzur and Vaidman would like a word...

[-] qjkxbmwvz@startrek.website 8 points 3 hours ago

https://en.m.wikipedia.org/wiki/ACID

Atomicity (something happens in its entirety or not at all), consistency (database is always in a valid state


if the database has constraints, they will always be honored), isolation (transactions don't step on each other), durability (complete transaction is complete even if there's a power failure).

Not a database expert, my parenthetical explanations may need work.

[-] qjkxbmwvz@startrek.website 10 points 1 day ago

I once took a Lyft and the push alert was, "Look for Jesus in a white Toyota Camry."

[-] qjkxbmwvz@startrek.website 7 points 2 days ago

Some would call the former command cat abuse.

In short, unless you want the contents of a file printed to stdout (or multiple files concatenated), the command can probably be written without cat, instead using the filename as an argument (grep pattern file) or IO redirection (cmd < file).

Stylistics and readability are another thing though.

[-] qjkxbmwvz@startrek.website 3 points 3 days ago

I think parent is referring to Merkle trees.

[-] qjkxbmwvz@startrek.website 12 points 4 days ago

Did they really take artistic liberties to make the Bay Bridge coloration look like the Golden Gate?

[-] qjkxbmwvz@startrek.website 152 points 3 months ago

Physics is like sex: sure, it may give some practical results, but that's not why we do it.


Richard P. Feynman

I think the same is true for a lot of folks and self hosting. Sure, having data in our own hands is great, and yes avoiding vendor lock-in is nice. But at the end of the day, it's nice to have computers seem "fun" again.

At least, that's my perspective.

[-] qjkxbmwvz@startrek.website 110 points 6 months ago

It's kinda a weird take? Like if I'm in a discussion about some scary things AfD are doing and a left-of-center German joins the conversation, I'd like to think I'd have the ability to...you know...hear what they have to say about things.

There are a bunch of Americans who asked for this; there are a bunch who stood by and did nothing to stop it; and there are a bunch who tried to stop it, did not, and are devastated.

I guess at the end of the day it's just a meme.

35

People often complain about San Francisco's public transit


and to be sure, it's not perfect by any means (multiple separate agencies doesn't help). But the historic streetcars are pretty neat!

They're painted with the livery of various historic streetcars from all over the country (and a few international, I think). Best of all, they run alongside the modern fleet


same route, same fare.

[-] qjkxbmwvz@startrek.website 112 points 11 months ago

Reminds me of that West Wing episode where he "accidentally" makes an offensive gun analogy comment; Harris doesn't really alienate any supporters here, and she appeals to the undecided gun crowd voters. As a bonus, she's "telling it like it is" for folks who are self-described as being "fed up with PC culture."

[-] qjkxbmwvz@startrek.website 127 points 1 year ago

I just tried that and got the same result. It's from a site that just quotes a snippet of an Onion article 🤦

[-] qjkxbmwvz@startrek.website 119 points 1 year ago

One of the real downsides of ARM is, it seems, the relative lack of standardization. An x64 kernel? It'll run on most anything from the last ten years at least. And as for boot process, it's probably one of two options (and in many cases one computer can boot either legacy or EFI).

ARM, on the other hand...my raspberry pi collection does one thing, my Orange Pi does something else, and God help you if you want to try swapping the Orange kernel for the Raspberry (or vice versa)!

4

Noticed a few days ago that Sutro Tower's red blinking lights are now white. Just asked them on their website form, but wondered if anyone else knows the story with this.

Personally, I miss the red ones!

5
submitted 1 year ago* (last edited 1 year ago) by qjkxbmwvz@startrek.website to c/amateur_radio@lemmy.radio

Howdy!

I got my Technician in early 2000s, and last year finally upgraded to Extra. Looking to set up a very basic shack.

I'm looking for an HF setup, with most of my use probably using digital modes, but would like the ability to use voice.

Current transceiver is on loan from girlfriend's dad, a Ten-Tec Scout 555


50W HF unit with separate modules for each band. One limitation of this is that the modules set the mode, so it's LSB on 40m, making e.g. FT8 not possible (without some hacking of code or perhaps hacking the module).

Antenna is end-fed with an off-the-shelf 49:1. Currently only have 20m half-wave, but have just enough room for a 40m half-wave in the attic, which is the ultimate goal.

For digital modes, it looks like there are sort of 3 classes of radio:

  • "full digital" where the radio has e.g. a USB port and handles audio, transmit, and frequency set.
  • Some computer-control with RS232, but uses computer audio+adapter to transmit.
  • No digital, use adapter to transmit. This is what the current setup uses (and it works great!)

I'm leaning towards a conventional transceiver, e.g., something from ICOM, Kenwood, Yaesu, (or others) rather than an SDR unit. I'd like the ability to go up to 50-100W if possible.

I don't have a hard-and-fast budget; would like to keep it <$1000 if possible; mostly just looking at used transceivers. Something like a Kenwood TS-590 looks pretty amazing and very "plug-and-play" (but pushing up against price). Something like a Yaesu FT-920 looks pretty feature-rich too; and even something more affordable like an ICOM 706 or even a 725 is probably more radio than I need. Or just grab a new 7300 and call it a day!

Anyway...clearly, I don't know exactly what I want, but figured I'd ask folks with more experience if they have any wisdom. Thanks!

[-] qjkxbmwvz@startrek.website 245 points 1 year ago

Similar with Y2K


it was only a nothingburger because it was taken seriously, and funded well. But the narrative is sometimes, "yeah lol it was a dud."

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qjkxbmwvz

joined 2 years ago