Hacker News: JorgeGT

New comment by JorgeGT in "German implementation of eIDAS will require an Apple/Google account to function"

JorgeGT — Sun, 05 Apr 2026 09:56:44 +0000

This is exactly how we implemented eIDAS in Spain. The government-issued national ID (DNIe) is an ISO 7816-compliant smart card. Latest versions are also ISO 14443-compliant for contactless reading. To use it, you just need a simple smart card reader or an NFC-enabled phone. https://www.dnielectronico.es/PortalDNIe/PRF1_Cons02.action?...

New comment by JorgeGT in "Khamenei Dead"

JorgeGT — Sat, 28 Feb 2026 22:26:19 +0000

The Ryan Doctrine.

New comment by JorgeGT in "The next steps for Airbus' big bet on open rotor engines"

JorgeGT — Tue, 03 Feb 2026 19:30:56 +0000

I talked with one of the aeroacoustic engineers working on it, she says they expect to match noise levels of current engines.

New comment by JorgeGT in "JuiceSSH – Give me my pro features back"

JorgeGT — Mon, 26 Jan 2026 18:26:05 +0000

Damn. I especially liked the cloud backup & sync. Any good alternatives?

New comment by JorgeGT in "Airbus A320 – intense solar radiation may corrupt data critical for flight"

JorgeGT — Sat, 29 Nov 2025 10:36:09 +0000

I don't know about the A320 but this was certainly the model for the Eurofighter. One of my university professors was in one of the teams, they were given the specs and not allowed to communicate with the other teams in any way during the hw and sw development.

New comment by JorgeGT in "Lenovo May Be Avoiding 'Windows Tax' via Cheaper Laptops with Preinstalled Linux"

JorgeGT — Sun, 27 Apr 2025 19:41:23 +0000

Lenovo has been doing this in Spain for quite a bit, and you can even buy them without any preinstalled OS at all for a lower price still. But at least here the option is typically available for ThinkPads rather than for more cheap consumer lines. Same with Acer. Dell offers Linux options but no "empty" option afaik.

New comment by JorgeGT in "Boosting Computational Fluid Dynamics Performance with AMD MI300X"

JorgeGT — Sun, 19 Jan 2025 16:00:15 +0000

It's tangential, but this is the first time I've seen Fluent installed by simply decompressing a tar, instead of executing their big installer.

New comment by JorgeGT in "Starship Flight 5: Launch and booster catch [video]"

JorgeGT — Mon, 14 Oct 2024 15:04:28 +0000

In reality few codes are capable of effectively parallelizing to so many computing processes. But, how cool would it be?

New comment by JorgeGT in "Starship Flight 5: Launch and booster catch [video]"

JorgeGT — Mon, 14 Oct 2024 08:08:29 +0000

It really depends on the problem to be solved (domain size, complexity of physical phenomena such as turbulence model, heat transfer, acoustics, multiphase flows, combustion, etc., number of time steps required...). In our case we perform for instance simulations of turbomachinery acoustics that can take 3-4 weeks running in a few hundreds of CPU cores, combustion acoustics simulations that can take a week or two running in 1k-2k cores...

New comment by JorgeGT in "Starship Flight 5: Launch and booster catch [video]"

JorgeGT — Sun, 13 Oct 2024 22:45:12 +0000

Oh no, apologies if that was the impression I gave!! I actually perform CFD simulations in HPC clusters, and in fact I'm an admin of the small cluster at my research institute =)

These are indeed heavy computations. What I meant is that VoF is one additional equation to be solved besides the N-S equations (either filtered as in LES or Reynolds-averaged as in RANS), the energy equation, your turbulence model equations, and so on. Certainly, not instantaneous at all, but simply an additional "simple" model that we can hook into our current way of doing CFD.

So, my point was, sloshing is a problem that we know how to simulate, although certainly you need HPC resources. Though, looking at those 100k NVIDIA H100 Elon has, I guess they have them! :P

New comment by JorgeGT in "Starship Flight 5: Launch and booster catch [video]"

JorgeGT — Sun, 13 Oct 2024 14:37:03 +0000

It is difficult, but there are modeling approaches that work, such as VoF (https://en.wikipedia.org/wiki/Volume_of_fluid_method). Basically, in addition to velocity, pressure, temperature, etc., you store an additional scalar in each cell of your computational mesh representing the liquid's volume fraction. Then, you solve an additional equation to transport that scalar.

New comment by JorgeGT in "Modeling study proposes a diamond layer at the core-mantle boundary on Mercury"

JorgeGT — Sat, 20 Jul 2024 20:29:24 +0000

I was thinking of the BFE...

New comment by JorgeGT in "JetZero: Ultra-efficient blended wing body jet"

JorgeGT — Wed, 27 Mar 2024 17:25:27 +0000

There's also the issue of ingesting the turbulent/detached boundary layer of the fuselage at high angles of attack, causing inlet distortions and the corresponding risk of compressor stall.

Orange Spain suffers major network disruptions after RIPE credentials hack

JorgeGT — Wed, 03 Jan 2024 16:12:04 +0000

Article URL: https://twitter.com/Ms_Snow_OwO/status/1742357282917109928

Comments URL: https://news.ycombinator.com/item?id=38855725

Points: 6

# Comments: 0

New comment by JorgeGT in "A list of Hacker News's undocumented features and behaviors"

JorgeGT — Tue, 26 Dec 2023 20:35:41 +0000

This update broke my workflow!

New comment by JorgeGT in "High-Resolution Lidar Images of Rivers and Deltas"

JorgeGT — Fri, 29 Sep 2023 21:09:38 +0000

Astonishingly, Harold Fisk did this in 1944 without any LiDAR: https://publicdomainreview.org/collection/maps-of-the-lower-...

New comment by JorgeGT in "The Fantilator Page"

JorgeGT — Mon, 25 Sep 2023 11:14:23 +0000

And if you prefer professionals, not amateurs: https://windshape.com/technology-2/

New comment by JorgeGT in "I built Excel for Uber and they ditched it"

JorgeGT — Sat, 16 Sep 2023 14:04:44 +0000

Even inside itself: filmmakers went to remote Los Angeles in the early 1900s because Thomas Edison, in NJ, held most of the patents on motion picture cameras and out west they were much more difficult to enforce.

New comment by JorgeGT in "This boat don't float (2009)"

JorgeGT — Mon, 21 Aug 2023 14:46:47 +0000

Maybe also a "Twain-version" of the title of Farley Mowat's novel The Boat Who Wouldn't Float?

New comment by JorgeGT in "Amsterdam to use “noise cameras” against too loud cars"

JorgeGT — Sat, 19 Aug 2023 14:07:26 +0000

Research-grade acoustic cameras from the leading providers cost anywhere from 50k-150k€. But they have much more than the "four microphones" the article cites, so I don't know which kind of solution they are implementing.