Lmst

s0 Traingirl Era boosted:

@s0 some detail shots of the two dice. the top surface of the moulding isn't super smooth, next time maybe a drop of oil on top?

s0 Traingirl Era boosted:

@s0 GOTTIM

this is pretty frikkin cool actually? the bottom chip is evidently a straight-up 4 channel VCSEL driver, blasting the four HDMI diff pairs.
the top one must do all the lower speed HDMI protocol stuff - looks like it gets one diff pair for HEAC and it will have to do DDC too, I guess that's why it has three optos bonded out - maybe VCSEL + PD for low speed DDC/management and another dedicated PD for HE[A]C? I think HDMI ethernet is 100Mbit, so.

View of an electro-optical assembly on a PCB. Twelve rainbow-clad fibres enter at left, lose their cladding, and point at some lensy things. There are two chips, each with several wire bonds to the lensy things. Four diff pairs are wire bonded to the bottom chip; four channels of something are clearly visible on that chip. The top chip has maybe one diff pair.

@abrasive ooooo, very cool :

@jpm ACARS meta drama, I try to track down the Brisbane/melbourne contributors to acarsdrama

s0 Traingirl Era boosted:

VDLM2 Message From: VH-VXS / QF0524

Message: GDAY NO RQMNTS THANKS

Track Aircraft

Area: Brisbane, Queensland, Australia

#acars #vdlm2

@jpm aw damn ok, I need to sort out my VDLM2 which isn’t working — I never see a human written message on plain ACARS.

What VDLM2 frequency is this operating??

s0 Traingirl Era boosted:

me, driving a train after insufflating 462 pages of ETCS functional specifications

A sketch showing a train being driven. The train has two boxes called "train integrity" and "ETCS", a radio link to a "Radio Block Centre" and "Interlocking", and an antenna reader reading some objects on the track marked "Eurobalise". It also has a train driver sitting at the driver's desk.

A close up of the train driver, who has a badly drawn happy expression that looks a bit odd.

@spacelizard making sure both east and west coast can both catch it five times?

Now I want to design an adder for Roman numerals. Instead of a carry bit I guess it would end up with flags for when it’s subtracting instead

@Mattmos @projectgus banging my fists on the desk Portrait colour CRT! Portrait colour CRT!

s0 Traingirl Era boosted:

Regarding LB[1]: It's an incredible story at the intersection of culture, language, politics, and engineering. I'd love to see Lin Yutang's MingKwai in action:

"At nine inches (23 centimetres) tall and less than 20 inches (50 centimetres) in length and width, MingKwai was no larger than a standard English typewriter. Most notably, it resembled its Western counterparts and featured a keyboard. With 72 keys, the device could type more than 90,000 Chinese characters."

[1] https://social.coop/@natematias/114450318139724718

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"The original typewriters were designed for the Latin alphabet. Conceived with little regard for the non-Western world, the technology’s proliferation served Western hegemony."

"Languages with non-Latin alphabets were forced to contort and comply with the alien instrument. The Chinese script, unreachable with an alphabetic keyboard, was castigated as incompatible with modernity"

Amazing story about a unique typewriter thought lost & its place in cultural history.

https://madeinchinajournal.com/2025/05/02/lost-and-found-the-unexpected-journey-of-the-mingkwai-typewriter/

@foone idk what they’re talking about but if the sky is red here on Monday at 9am something real bad has happened

:geordie_dislike: Binary-Coded Decimal

:geordie_like: Binary-Coded Roman Numerals

@sys64738 RISC-MCMXCVIII

@futzle but remember, one can always consult the most wholesome of teachers, @Minimus

@futzle aren’t we all.

@futzle come on Deb, I know red is Two!

s0 Traingirl Era boosted:

Red is …

@tobi make computers machines again 2k26

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