Tootfinder

Pleasantly surprised I can measure this timing difference on my cheap scope; In both cases this is a chain of a pair of inverters in a 74LS04 package; the difference between the two captures is just the length of breadboard wire between the 1st and 2nd inverter; the first is about 1cm and the 2nd is about 20cm; so that's about 0.5ns difference measured which is reasonable - and surprisingly good for a 500MS/s scope.
(The yellow is input from a sig gen, blue is op of 2nd inverter).

In case you've not seen it, Scrapper is on the BBC iPlayer. It's fantastic film.
https://www.bbc.co.uk/iplayer/episode/m002rwg7

Scrapper
Georgie, a dreamy 12-year-old girl, lives happily alone in her London flat, filling it with magic. When her estranged father turns up out of the blue, she is forced to confront reality.

Every Surprise Standout From Dallas Cowboys' Preseason Week 1 Win https://www.si.com/nfl/cowboys/onsi/every-surprise-standout-from-dallas-cowboys-preseason-week-1-win

An invisible forever chemical rain is falling across the planet #environment

An invisible forever chemical rain is falling across the planet
A surprising study suggests that chemicals introduced to protect the ozone layer may have unintentionally created a growing global pollution problem. Researchers found that refrigerants and certain anesthetic gases have generated more than 335,000 tonnes of trifluoroacetic acid (TFA), a highly persistent "forever chemical," that has been deposited across Earth's surface since 2000. The pollutant is now showing up everywhere from rainwater to remote Arctic ice, and scientists expect levels to ke…

➡️ www.marginalia.nu
#bookmarks

Anyone I know using acme.sh in a large cert server? (I've got 52 websites on this thing) Certbot worked great but now the default version with Alma is not the same as from pip install, but pip install certbot-apache is failing because reasons and Im just so tired of tracking down build issues. git clone acme.sh is so much easier

I had a 14tb (enterprise) sata hard drive failing a few weeks ago. I bought it refurbished (it had already been used for about 6 years at that point), but with a 5 year warranty.
I thought for sure that when I RMA'd the drive, GoHardDrive would just refund my $140 and tell me to go buy another one at current market prices (hah). Because, y'know, the business model is likely built on drive prices getting cheaper over time.
I was pleasantly surprised that they sent me anoth…

Just pulled a now empty PDU and tidied up a few cables. Main IT rack is looking pretty good now.
Everything below the 1GbaseT switches (except the PoE injector) is pulling a combined total of just under 1 kW; the rest isn't metered yet.

Yesterday I scrolled through the accounts I'm following and was a bit surprised about the amount of accounts that haven't been active since 2024 :-(

In a post on X on May 18,
Elbridge Colby, the under secretary of defence for policy at the Pentagon,
announced that the United States would pause its participation in the Permanent Joint Board on Defense (PJBD)
to “reassess how this forum benefits shared North American defense.”
The under secretary pointed to Canada failing to make credible progress on its defence commitments as well as to Canadian rhetoric,
a jab at Prime Minister Mark Carney’s speech in Davo…

Canada and America Are Drifting Apart. The Pentagon Just Made It Official | The Walrus
A surprise defence decision reveals the depth of the political rupture