wa7iut

azonenberg, 10 hours ago to random

New toy just showed up in the mail... It's my beta ThunderScope!

Will start playing with it after work but here's some quick unboxing pics.

Black Pelican case labeled "ThunderScope" with "made in Canada" "OSHW", and "EEVengers" logos on it
Black instrument case in foam cutout with four BNCs on one side and two on the other, labeled "ThunderScope Beta 2"

azonenberg, 2 days ago to random

Anybody else ever look at a distributed-memory architecture diagram and start humming "Dragostea Din Tei" to yourself?

atomicpoet, 2 days ago (edited 1 day ago) to random

Bibimbap!

Shanitoba, 3 days ago to random

Dîner! Moules Marinières. 😋

mekkaokereke, 3 days ago to random

If you got upset at me for pointing out that more people died of Covid under Biden than Trump, in large part because Biden rolled back common sense restrictions that were in place under Trump...

Then you'll hate me pointing out that Trump introduced a 25% tariff on Chinese EVs, and Biden is upping that to 100% tariff.

https://insideevs.com/news/719283/chinese-ev-tariffs-biden-quadruple/

We can't allow the US to get off of fossil fuels... unless US billionaires win! 🤡

Fear the BYD Dolphin! (an EV car for $12K)
https://m.youtube.com/shorts/T3nfyO_UHjk

wa7iut, 4 days ago to random

waiting for the magnetic poles to flip! 😱

https://undark.org/2018/01/26/books-alanna-mitchell-spinning-magnet/

N4JAW, 4 days ago to amateurradio

Heading out for some early morning #pota #parksontheair fun. Did I read something about a Severe Geomagnetic Storm Watch? ☹️ #solarcycle25 #geomagneticstorm #solarflares #AmateurRado #hamradio

sundogplanets, 5 days ago to random

I am talking o a reporter about this in a couple hours: https://regina.ctvnews.ca/from-outer-space-sask-farmers-baffled-after-discovering-strange-wreckage-in-field-1.6880353

This is about an hour away from my farm, so this'll be a fun conversation, and yet another great opportunity to tell a lot of people about what a huge problem we have with unregulated commercialization of orbit. (Also I just redid my slides for my public talk next week, this is going in!)

sundogplanets, 5 days ago to random

Got the electronet out and set up, and now all the 4 legged animals are out on grass for the first time this year! They are sooooo happy. (And the llama doesn't seem to have any thoughts of escape, so that's great).

A herd of over a dozen white goats with a couple of brown and black goats sprinkled in. They are 100% concentrating on eating. They are in a bright green grassy area, with a tall wooden fence, tall spruce trees, and a large old yellow barn in the background. There are lovely poofy clouds in a bright blue sky above.

atomicpoet, 7 days ago (edited 7 days ago) to random

Listen, if you’re a white person, and you think you’ve had Szechuan food, you probably haven’t.

Most of the Szechuan restaurants in the USA lack a basic component: spiciness.

I say this because a friend from out of town just went to a Szechuan restaurant in Vancouver, thought it was going to be business as usual, and now he’s doubled over because the spice is too much for him.

He tells me, it’s so bad, that he feels the spice eking out of his pores. 🤣

SRDas, 9 days ago to Japan

Kid1 uses their blue steel (aogami) (#1 😳*) that I picked up at a hardware store in Shimabara #Japan to make short work of some cabbage for knife practice.

#TeachYourChildren #KnifeSkills #Cooking

*Wasn't on the cards (they have ok knives) - but couldn't pass up

futurebird, 9 days ago to random

The overhead for the AI on a minecraft ant is so great that the mod creators limit the colonies to just 20 ants to prevent lag. Fine for gameplay 20 feels like a lot.

Interesting the kind of things they do: remember the location of their nest, find a path back, collect leaves etc. are so taxing.

In the real world a colony of 1000+ is typical. Some colonies have millions of ants. And real ants have much more to "process" Kind of gives you a sense of the scale of the intelligence of a colony.

imtheq, 9 days ago to random

Today's Blog - 5.5.24

https://www.amandaquraishi.com/blog-5-5-24/

mattblaze, 11 days ago to photography

#photography nerdetry:

I have a pretty developed and deliberate approach to the photos I make, in that I generally have a fairly clear vision of the final result I want to achieve when I'm capturing something, even for details like contrast and tonality.

Except for color toning. I almost never have any idea whether I will add a sepia tint or whatever. I'm totally ad hoc and inconsistent about this, and I often go back and forth several times before settling on a final version.

evan, 13 days ago (edited 12 days ago) to random

Which of these body parts do you still have?

#EvanPoll #poll

NunavutBirder, 14 days ago to worldwithoutus

My wife is home. #Nunavut #Arctic

Video of snowmobiles pulling qamutiit on the sea ice. A cotton candy sky of pinks and blues. In front of the camera one snowmobile stops. Behind the sun shines on the top of the mountain despite it being almost midnight.

atomicpoet, 16 days ago to random

A console is not a replacement for a GPU card.

A GPU card is a discrete component from a CPU. It has dedicated VRAM. You can remove it from your machine and replace it with a different GPU.

Meanwhile, modern consoles pretty much just have APUs. Don’t get me wrong, they have decent APUs. However, an APU in a console is not a GPU card replacement – because it is neither discrete nor replaceable.

nyrath, 16 days ago to random

Old NASA document about precisely aiming powerful lasers in space applications. Such as long range laser weapons

https://ntrs.nasa.gov/citations/19890001560

ethanschoonover, 17 days ago to HikingPics

New DIY unistrut backpacking gear sliding hang system.

Took 20 minutes to build and install (including time to cut the mounts and threaded rod).

#backpacking #camping

azonenberg, 22 days ago to random

New thread on my big ongoing embedded project since the other one was getting too big.

To recap, this is a pilot project for a bunch of my future open hardware T&M and networking projects, validating a common platform that a lot of the future stuff is going to run on.

The primary problem it's trying to address is that I have a lot of instrumentation with trigger in/out ports, sometimes at different voltage levels, and I don't always have the same instrument sourcing the trigger every time.

So rather than moving around cables all the time and adding splitters, attenuators, amplifiers, etc. to the trigger signals I decided to make a dedicated device using an old XC7K70T-2FBG484 I had lying around.

Of course, as with any project, there was feature creep.

I'm standardizing on +48V DC for powering all of my future projects as it's high enough to move a lot of power but low enough to be mostly safe to work around live. So I needed to design and validate an intermediate bus converter to bring the 48 down to something like 12 for the rest of the system to use.

The FPGA has four 10G transceiver pairs on it. I used one for 10GbE (not that I need the bandwidth, but I was low on RJ45 ports on this bench and had some free SFP drops) and the rest are hooked up to front panel SMA ports (awaiting cables to go from PCB to panel) to generate PRBSes for instrument deskew.

Since I'm pinning out the transceivers and am planning to build a BERT eventually, I added BERT functionality to the firmware as well (still need to finish a few things but it's mostly usable now).

And since I have transceivers and access to all of the scope triggers, it would be dumb not to build a CDR trigger mode as well. That's in progress.

atomicpoet, 23 days ago to random

A cute rabbit chilling by the river.