@spmatich@ioc.exchange avatar

spmatich

@spmatich@ioc.exchange

ex-twitter Greens Australia software developer NZ cricket physics whm

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timbray, to random
@timbray@cosocial.ca avatar

Of geek interest: UUIDs have been around for a long time and they work well and interoperate fine, but the specification space is a mess. So the IETF just shipped RFC9562; it has a fine consideration of the history and the trade-offs involved in all the different flavors of UUIDs, and is well-written and I think, as of now, the place to start looking if something UUID-flavored is puzzling you. Strong work! https://www.rfc-editor.org/rfc/rfc9562.html

spmatich,
@spmatich@ioc.exchange avatar

@timbray
“UUID should be represented by the "hex-and-dash" string format consisting of multiple groups of uppercase or lowercase alphanumeric hexadecimal characters “

Every time I’m handling uuids in code I need to remember to think about case. I have seen resource IDs in azure recently consisting of multiple uuids in the one resource ID string. where some UUIDs are in caps and others are lower case. In the same ID string. But if you were building that resource ID string to use in an azure SDK you would have to respect which UUIDs are in caps and which are lc otherwise it will not be useable. It’s an absolute nightmare.
because the standard allows both and some library code has not implemented the standard correctly, we get issues with case.

spmatich,
@spmatich@ioc.exchange avatar

@jens @timbray omg. You could store the hex encoded uuid string without the dashes if you really needed to. The dashes are always in the same place. When you read them back just add the bloody dashes back in.

spmatich,
@spmatich@ioc.exchange avatar

@jens @timbray I’m thinking web devs are usually dealing in url-encoded strings, so binary UUIDs might have been a bridge too far.

spmatich, to lotr
@spmatich@ioc.exchange avatar

RIP Bernard Hill, Theoden King

https://www.abc.net.au/news/2024-05-06/bernard-hill-king-theoden-lord-of-the-rings-titanic-dies/103807466

dgar, to random
@dgar@aus.social avatar

Just when you think that food cannot possibly call you on your phone....BOOM!!!

Onion rings.

spmatich,
@spmatich@ioc.exchange avatar

@dgar

Most people think planets aren’t conscious. But they would still answer the phone for Saturns rings.

coreyspowell, to science
@coreyspowell@mastodon.social avatar

Well that's cool! These are the shadows of the 2017 and 2024 North American solar eclipses, observed by the GOES weather satellites & superimposed on each other.

The images show the Moon's shadow at 10-minute intervals.

https://cimss.ssec.wisc.edu/satellite-blog/archives/58552

The size of the Moon’s shadow on the Earth during the total solar eclipses were very different between 2017 and 2024. These images use ABI band 3 (0.86 um), since the land background tends to be bright (due to reflection off vegetation), hence giving more contrast with the dark shadow.

spmatich,
@spmatich@ioc.exchange avatar

@coreyspowell is that the same abi band 3 described here (near infrared) http://cimss.ssec.wisc.edu/goes/abi/factsheets/ABI%20Fact%20Sheet%20Band%203%20(Veggie)_FINAL.pdf

You don’t happen to know of a similar eclipse video taken from satellite in the thermal infrared range? Might be abi band 14 according to this link
https://www.weather.gov/media/crp/GOES_16_Guides_FINALBIS.pdf

spmatich,
@spmatich@ioc.exchange avatar

@ajsadauskas @SituationCake @Seagoon_ if they could bottle the rage that “self service” checkouts produce they could power a city the size of Melbourne for a century.

gilduran, to random
@gilduran@journa.host avatar

To understand what's happening in San Francisco, you must examine the extremist politics of the "Network State" cult. For the @newrepublic, I wrote about Balaji Srinivasan, an influential tech baron seeking to “ethnically cleanse” SF.
Buckle up for an absolute horrorshow! https://newrepublic.com/article/180487/balaji-srinivasan-network-state-plutocrat

spmatich,
@spmatich@ioc.exchange avatar

@gilduran @newrepublic isn’t it strange how some billionaires think democracy, the very system that guarantees a stable society, with lots of government funded research dollars, and which provides the entire platform that enables them to make their billions, represents failure, and should be replaced.

decryption, to random
@decryption@aus.social avatar

guess when the car started charging

spmatich,
@spmatich@ioc.exchange avatar

@decryption why would you want to pay for leccy at midnight to charge your ev when you can charge it at midday for free?

spmatich,
@spmatich@ioc.exchange avatar

@decryption so you’re on a fixed rate fit?

ai6yr, to math

Holy crap. Someone won the Texas Lotto -- to the tune of $95 million -- by buying every combination of number available. They apparently invested approximately $25.8M to accomplish that. (Paywall busted below) https://archive.is/etkX9

#lotto #math

spmatich,
@spmatich@ioc.exchange avatar

@ai6yr if other people had the same numbers do they have to split the prize? eg if two other people had the same numbers does it get split 3ways. You can’t buy every number for that outcome.

lauren, to random
@lauren@mastodon.laurenweinstein.org avatar

I block neutrinos. And it's not easy.

spmatich,
@spmatich@ioc.exchange avatar

@lauren if you form a band with others like you that have a similar sensitivity, and keep really good timing, then together you will be able to tell which direction the neutrinos are coming from. I’m sure “the triangulated neutrino blockers” has not been used as a band name before.

ai6yr, to space

AP: NASA confirms mystery object that crashed through roof of Florida home came from space station https://apnews.com/article/space-station-debris-florida-home-8c5cd89b0d9db0f5c274ab9ed1f0713c

spmatich,
@spmatich@ioc.exchange avatar

@ai6yr
(with apologies to Harry Warren)
That thing in the sky
that we sent way up high
needs a mention

Be aware that you might
get a big fright at night
from the stantion

It might make a mess
of your roof nonetheless
take a photo

That piece of alloy
is not just a toy
that’s inconel

bagder, (edited ) to cisco
@bagder@mastodon.social avatar

I was reminded of the great security fix of 2019

spmatich,
@spmatich@ioc.exchange avatar

@bagder does this qualify as code bloat? the user agent header is completely arbitrary and can be set to anything.
I mean why single out curl. Shouldn’t the nmap default user agent be in there too? etc etc

spmatich,
@spmatich@ioc.exchange avatar

@bagder so the exploit just needs an update to include setting the user agent header to something else right, and it could be one of many many many different strings.

Viss, to random
@Viss@mastodon.social avatar

well isnt this lovely

video/mp4

spmatich,
@spmatich@ioc.exchange avatar

@Viss is that the view from the bed you returned to earlier

ned, (edited ) to random
@ned@mstdn.ca avatar

Louder for those in the back.

There is nothing "innovative" about control of capital resources.

Besides which, those who do the actual creating are just working for a living. They don't have a profit motive, they just want to get paid, whether the funding comes publicly or privately.

spmatich,
@spmatich@ioc.exchange avatar

@ned wifi was created by scientists working at the CSIRO in Australia. The acronym stands for Commonwealth Scientific and Industrial Research Organisation. An Australian government agency.

jonoabroad, to random
@jonoabroad@mastodon.nz avatar

The SailGP thing is everything wrong with humanity, oh and Plunket is still making sure people don't forget how much of a cunt he is.

spmatich,
@spmatich@ioc.exchange avatar

@jonoabroad beg to differ. I think formula one beats match race sailing for environmental shit fuckery hands down.

ErikJonker, to Signal
@ErikJonker@mastodon.social avatar

Can't be repeated enough, quit whatsapp where you can, use signal. It's great, very secure, opensource, not tied to , non-profit etc.
https://signal.org/download/

spmatich,
@spmatich@ioc.exchange avatar

@ErikJonker from personal experience the Linux and macOS versions of signal work as well as the phone versions.

mattblaze, to photography
@mattblaze@federate.social avatar

Three Persimmons, 2008.

Minimalist pixels at https://www.flickr.com/photos/mattblaze/2207576183

spmatich,
@spmatich@ioc.exchange avatar

@mattblaze no one could accuse you of being parsimonious with the investment in all that gear. Persimmonious on the other hand…

ChrisMayLA6, to Economics
@ChrisMayLA6@zirk.us avatar

Q. how much economic advantage does UK get by speaking english.

Other countries gain economic developmental advantage from the range of people with english proficiency.

So turning that around: does the UK's 'natural' speaking of English mask or reduce (some) economic deficiencies that would otherwise be problems?.

Thought experiment: if the UK did no speak the globe's second language what would be the implication for its economic development?


https://www.cambridgeenglish.org/Images/539681-perspectives-english-for-development.pdf

spmatich,
@spmatich@ioc.exchange avatar

@peterbrown @regordane @ChrisMayLA6 sorry for shitposting, but whenever I see this kind of thing I’m reminded about how England has always been and always will be part of Europe. Brexit schmexit.

RadicalAnthro, to Futurology
@RadicalAnthro@c.im avatar

Anthropologist Steven Gonzalez draws on five years of research and ethnographic fieldwork in farms to illustrate some of the diverse impacts of .

"The Cloud now has a greater carbon footprint than the airline industry. A single data center can consume the equivalent electricity of 50,000 homes"

https://thereader.mitpress.mit.edu/the-staggering-ecological-impacts-of-computation-and-the-cloud/

spmatich,
@spmatich@ioc.exchange avatar

@RadicalAnthro there were warehouses filled with racks of servers and network gear before aws, microsoft and google got into hosting. While the number of servers has probably gone up, the cloud providers have not created a demand for their services, which would not be met elsewhere by a non-cloud provider. Datacenter hosting is not a term I encounter much these days, but I made my living working in that area for about 10y from the early 2000s, when the cloud was a little thing on architecture diagrams that showed where the internet connection was. Large companies had contracts with datacenter hosting providers. They owned or leased hardware. Then virtualisation came along, and all of a sudden the corporate clients didn’t need to own the hardware anymore. The cloud as we refer to it today is just an extension of that. So while it is now a bit more obvious how much energy goes into running ‘the cloud’ it’s mostly because what might have been discrete hosting contracts have been aggregated by big providers

dangillmor, (edited ) to random
@dangillmor@mastodon.social avatar

Linux experts: I have the 6.5 and 6.1 kernels installed, but system boots automatically into 6.1 -- any guidance on why that's happening and how (or whether) I can force it to boot into 6.5?

(Assuming a GRUB issue but I don't want to muck with that in a casual way...)

spmatich,
@spmatich@ioc.exchange avatar

@dangillmor updating grub is a step that should be triggered by installation of the new kernel.
You can try this on Debian / Ubuntu systems
sudo dpkg-reconfigure <linux-package-name>

spmatich,
@spmatich@ioc.exchange avatar

@dangillmor
this is what it looks like when I run it on my ubuntu laptop

azonenberg, to random
@azonenberg@ioc.exchange avatar

Assembling the trigger crossbar board over lunch.

Not thrilled with the paste print quality, very inconsistent. the top left corner was way too thick as the board flexed during printing, the middle BGA skipped some pads, and the WLCSP in the bottom right was near perfect.

These big boards bend too much in my paste fixture, I need to find a way to prevent that before I do any more boards of this scale.

spmatich,
@spmatich@ioc.exchange avatar

@azonenberg your challenge should you choose to accept it, is to derive the denial of service function D(t) that describes the increase in log traffic over time. Given network throughput T in bps, assuming infinite cpu capacity, at what time t, after enabling logging will D(t) be equal to network thoughput T, and hence deny any further packet transmission. Extra for experts. Prove your denial of service function by logging your log messages. Is D exponential?

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