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tda

2,807 karma · joined October 26, 2016

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tda··on Ask HN: How to do literal web searches after Google destroyed the “ ” feature?
Great tip! Seems like this adds the query param "&tbs=li%3A1", so this might be something you can configure as an extra search engine in firefox. But then I am a happy kagi customer, and I was just thinking that I can't recall the last time I had to do a !g to find something. For me, google search si pretty much dead. I only use it now when on someone else's pc
tda··on The database servers powering Let's Encrypt (2021)
I recently bought my first server, just about the cheapest Dell had available (still €2000). I was completely undewhelmed by the specs, it even has spinning rust. The upgrade costs to SSD's were like 250 per disk. So reading these specs, how much does such a server cost? Or do you put the disks in yourself? Can you negotiate a 50% discount? So many questions I have as a newbie in the entireprise server world.
tda··on Custom Minecraft Classic client written from scratch in C
From the readme:

> It does not support logging in with Mojang/Minecraft accounts

They almost make it sound like a bad thing

tda··on Ask HN: How do you manage your “family data warehouse”?
At a previous employer, we stored 3Tb of data in SVN. The data was mostly archival, however sometimes corrections were made to historical data. Using partial checkouts it was quite easy to sync a subset locally. I don't use subversion anymore, but thinking about it I prefer the explicit and deliberate commit/checkout/merge over the automagic sync conflict generators that are onedrive, dropbox, nextcloud etc. Also all pf these start to struggle somewhere around 100k files / 1TB data mark.
tda··on I walked across Luxembourg
Indeed, but the only viewer for ahn4 I know of is some crappy arcgis site.
tda··on I walked across Luxembourg
Indeed https://github.com/potree/potree has a bit awkward navigation, but there are quite a few nice lidar datasets available to explore with it, like the scan of the Matterhorn. I once used it to explore a dataset made by a photogrammetry drone, was quite nice.

The entire country of the Netherlands is also available here: http://ahn2.pointclouds.nl/ There is no rgb information, only elevation. But you can make out individual power powerlines, the scan resolution is really high.

tda··on GIL removal and the Faster CPython project
But consider that in perhaps 99% of current python code high performance (of the pure python code) is not the primary concern. And now for the times when performance does matter you can get a 20x (?) speedup without rewriting in another language.
tda··on ‘Baldur’s Gate 3’ Prepared for 100k Concurrent Players, They’ve Gotten 700K
I thought all these games were end of nineties, but I didn't check and am not so good at this. Anyways, I never stopped gaming since
tda··on Offshore wind potential in the US is huge but untapped
At least in the North Sea, wind parks have created large area's in which trawlers fishing is prohibited. This is really significant, as I believe the entire Dutch North Sea EEZ is trawled multiple times per year. This is really a massive undertaking, and is even permitted in the Natura2000 area's. Really nothing could stop the fishing lobby from destructing the bottom life on which the industry depends in a giant tragedy of the commons kind of way. Except now for wind farms. Now huge areas are off limits for fishing boats
tda··on Offshore wind potential in the US is huge but untapped
"Once the foundation is in the ground" is of course the big thing, as each foundation is unique (even if they all look the same they are specced to exactly the water depth and local spil conditions), and a lot of the installation risks are in the foundation. Rock may be harder than expected, or there might be a boulder hiding in the sandy soil. After the foundations are in, the installation of the tower, nacelle and blades is repetitive work. There should be little variance between sites left then. Weather is probably the most significant differtiating factor left.
tda··on ‘Baldur’s Gate 3’ Prepared for 100k Concurrent Players, They’ve Gotten 700K
I have games plenty, but had never even heard about the Valeurs Gate franchise until last week. I must have been in a different bubble with Dune 2, Red Alert, Some City 2000, Tomb Raider, GTA3, Dungeon master and probably some more that I can't recall now. But the whole fantasy RPG wasn't really my thing I guess
tda··on The world’s largest wind turbine has been switched on
Last I heard I think 25MW turbines were in some early stage of development. At least that is the biggest my former employer I recall was considering for their latest installation vessel. But I have been out of the loop for a while, so would love to hear an update.

The first 14MW was installed quite a few years ago (and it might have been upgraded to 15MW), so this is just a small-ish increase in max size. The big news, foe at least, is that it is Chinese. Siemens, Vestas and GE have some serious competition now it seems

tda··on ‘Something weird is going on’: Antarctic sea ice stays at historic lows
Indeed. Essentially, the resources available to the average person are sum_of_all_resources / total_nr_of_people. The amount of a lot of resources (energy, food, mobility, communication) to go around has grown greatly since the industrial revolution. But some resources, like land, minerals, fish in the sea, are just fundamentally limited. The only way to have more on average is to diverse what is available by less people.

Or you can just take more for yourself by stealing it from the less privileged and future generations, which seems to be the current modus operandi...

tda··on ‘Something weird is going on’: Antarctic sea ice stays at historic lows
“It is very much outside our understanding of this system.”

This is what worries me: climate change leading to entirely new regimes that we don't understand and thus can't model or predict with any accuracy. You just can't build a seawall for a sealevel rise of between 50 and 300 cm somewhere in about 20 to 50 years. Or for heatwaves of maximum 35 to 45 degrees, precipitation of max 20-100mm/hour, etc. Climate adaptation will be even more challenging if we don't know what we are adapting to

tda··on Stanford president resigns over manipulated research, will retract 3 papers
Some links: https://scienceintegritydigest.com/

https://en.m.wikipedia.org/wiki/Elisabeth_Bik

tda··on Microsoft Office’s new default font: Aptos
Thanks! Grandview is horrible. Bierstadt is ok but I would have preferred Skeena.
tda··on Dutch E-Bike startup VanMoof unable to pay the bills
To be exact: - the battery - rear hub (actually entire wheel) - main logic board (might have been 2x) - boost button - automatic shifter

Most of these were in the first year and a half. I think the only commonly failing part that is still original is the kick-lock. Interestingly I have never heard complaints or had issues with the actual electric motor.

tda··on Dutch E-Bike startup VanMoof unable to pay the bills
Especially when at introduction of the S3 a few years ago. The only alternatives in the same price range as Van Moof were very ugly / no-brand e-bikes. The S2 predecessor came in at €3500, the S3 was introduced at €1900. It is/was by all means a cheap bike, with cheap parts, sold at a low price, but with a premium image.

However in the last few years a lot has changed, and in no small part thanks to Van Moof. There are now plenty of competitors on the market that are more affordable, use more standard and more easily replaceable parts and have higher build quality. The Van Moof S3 has only gone up in price, while no changes have been made to address it's flaws.

So when I bought my S3 bike in 2020 it was a reasonable choice, even though I was well aware of the quality issues. And though almost every part on my bike has been replaced at least once (at no cost to me), I have no regrets of my choice back then; there were practically no alternatives back then.

But my next bike will surely not be a Van Moof. The brand has served it's purpose, popularising e-bikes for non-pensioners. But they made a few costly design mistakes, and instead of backtracking they doubled down.

In my opinion the automatic electric shifter without a pedal-force sensor is the main flaw. You can't control the shift moment (I guess because manual shift buttons would interfere with the design). The hub gear is not designed for shifting under load, so sooner or later it will break as the auto shifter chooses just the wrong moment.

Also due to the lack of a pedal-force sensor, shifting is only based on speed. When going up a hill or with heavy head wind, I would prefer to ride in a lower gear. This requires opening up the app and change the shifting profile. No thank you!

TLDR: Either manually controlled shifting or a inclusion of pedal force sensor would have solved 90% procent of the issues with the bike. Refusing to acknowledge such a basic design mistake is a god reason to go bankrupt. So thanks for the effort, but this is the market working as it is supposed to do. Bye bye Van Moof, good riddance

tda··on The ice machine that chills Chicago’s skyscrapers
Maybe it is me, but superficially I find "temperature rises with 1.5 degrees" sounds less scary than "past observations of weather 'i.e. climate' have lost their predictive value. We have no clue how cold/hot/wet/dry it will get here but it will be different than what this place is designed for so you're f*d either way"
tda··on Ask HN: Any hardware startups here?
We build robot arm based 3D printers. Surprisingly the company (more scale up than start up tbh) is entirely bootstrapped, and the hardware is pretty mature. But I am a software engineer and that is the area we are struggling with most currently, especially where IT and OT meet.

www.ceadgroup.com

tda··on The hidden cost of air quality monitoring
I wanted to show some simple graphs on the display, but this quickly became too much for the esp8266
tda··on The hidden cost of air quality monitoring
On a side note, I recently upgraded my airgradient-pro to and esp32 s3 based board (forgot which one but it is pin compatible with the esp8266 it came with).

I got everything to work with ESPHome, except for the BSEC version of the BME680 driver (I added a BME60 because I had one lying around. It worked fine with BSEC and ESPHOME on the ESP8266). I was thinking of sharing my experience, but I never got to it

tda··on Arduino Uno R4
So they stuck an esp32 on the Arduino just for the Bluetooth/Wifi? I wonder how it compares to the Arduino processor

Edit: I see this topic was discussed yesterday

tda··on Display brighter-than-white color on Apple devices
doesn't work with firefox on my M1 MBP, but it does in safari.
tda··on Add $4 WiFi Logging to IKEA’s $12 Air Quality Sensor (Wemos and Vindriktning)
A simple pir sensor just has a digital out that is either high or low. That is supported as a digital in sensor. Only for devices with a more complicated protocol (mostly i2c, spi and uart) you need a special sensor specific integration
tda··on Direct air capture: our technology to capture CO₂
This planting should happen one time, not yearly. Of course every dead tree should be replaced though. If there are 204 trees capturing CO2 for every human (and these numbers are correct) we should effectively be carbon neutral. No idea if that is even remotely realistic though
tda··on Apple-1 ELIZA chatbot vs. ChatGPT [video]
A nice interview with Jeff on Eliza and Elizagen: https://corecursive.com/eliza-with-jeff-shrager/

It was recorded just before ChatGPT became a thing, but I only recently listened to it. Until recently I wrote off chatbots as an annoying to get a canned response. Now I use one almost daily as a rather efficient (compared to wading through forums and search results) way to explore ideas.

tda··on Pigz: Parallel gzip for modern multi-processor, multi-core machines
That must be why you left out all the technical details ;) At least you piqued my interest, I'll just ask chatgpt to explain the general concepts.
tda··on Pigz: Parallel gzip for modern multi-processor, multi-core machines
Just listened to that episode, what a great story. The dry way he tells how he unexpectedly and almost accidentally transitioned from a project manager to a software engineer is really a treat. Thanks for your podcast!
tda··on Vestas hails breakthrough for recyclable wind turbines
At some point I expect blades will be made from thermoplastic composites, not thermosets. Then it will just be a matter of melting the blades to recycle them. A lot is happening in that area at least, thermoplastics for airplanes are very actively researched
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