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renw0rp

158 karma · joined October 17, 2017

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renw0rp··on Java 17 / JDK 17: General Availability
I think it's worth highlighting that while Lombok is a dependency it is only a compile time dependency (it's not part of the output JAR).
renw0rp··on Live electricity production/consumption CO2 map
To be fair, Europe looks a bit disappointing. After years (decades?) of talking about global warming there is still so much electricity coming from coal.
renw0rp··on Widelands is a free, open-source real-time strategy game
W:ET is the game I've played the most in my life! Such a good FPS!
renw0rp··on How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
the whole point is that they only need to shut off the stations which are at risk of flooding

PS. I think only the stations build as the first phase of the first line (planned in the '70s-'80s and finished mid '90s) have this feature.

renw0rp··on A foreign seller has hijacked my Amazon Klein bottle listing
I've read your book a couple of years ago. When I saw your name on hacker news I thought it sounded familiar!
renw0rp··on Concrete: The material that's 'too vast to imagine'
What about prefabricated houses in post-communist countries? You definitely can't accuse them of using highest quality materials nor spending loads of money on maintenance, but I haven't heard about major failures and there are probably millions of such blocks of flats out there, built mostly between '60-'80 using a couple of different variations of the technology (some involving pre fabricated pieces of reinforced concrete connected with steel joints). I think they were estimated to last 50 years or so, but there is still large proportion of the population living in such houses in some countries nowadays.
renw0rp··on Siemens acquires Supplyframe, owners of Hackaday and Tindie
a bit historical story:

In 1993 Siemens bought Polish early computer manufacturer: https://en.wikipedia.org/wiki/Elwro

it seems just to close it down

renw0rp··on Samsung boosts non-memory chip investment to $151B
The countries you mentioned are as prepared for war as was France in 1939/1940
renw0rp··on Lima: Linux-on-Mac
MacOS full screen mode has been at least as quirky as i3 for me, but without all the benefits of i3.
renw0rp··on Boeing 787s must be turned off and on every 51 days (2020)
Reminds me of patriot missiles:

> The Patriot missile battery at Dhahran had been in operation for 100 hours, by which time the system's internal clock had drifted by one-third of a second. Due to the missile's speed this was equivalent to a miss distance of 600 meters.

> The radar system had successfully detected the Scud and predicted where to look for it next. However, the timestamps of the two radar pulses being compared were converted to floating point differently: one correctly, the other introducing an error proportionate to the operation time so far (100 hours) caused by the truncation in a 24-bit fixed-point register. As a result, the difference between the pulses was wrong, so the system looked in the wrong part of the sky and found no target. With no target, the initial detection was assumed to be a spurious track and the missile was removed from the system. No interception was attempted, and the Scud impacted on a makeshift barracks in an Al Khobar warehouse, killing 28 soldiers, the first Americans to be killed from the Scuds that Iraq had launched against Saudi Arabia and Israel.

So such things happen also in military (although this was early nineties)

Source: https://en.m.wikipedia.org/wiki/MIM-104_Patriot

renw0rp··on How much faster is Redis at storing a blob of JSON compared to Postgres? (2019)
Worth including authors response to that comment (which completely ignores the suggestion)

"Peter Bengtsson 02 October 2019

Yes, it is apples and oranges but they are both things you can use for a juicy and healthy snack. You don't have to turn the apple into an orange (or the other way around) but it's about understanding the pros and cons of the apples and the pros and cons of the oranges. Then, equipped with that you can make informed decisions."

Seriously, that's the answer?

Really sad that blog post from this author made it to the front page of HN.

renw0rp··on A growing number of people are eschewing soap (2019)
Are there any negative implications of using baking soda in you arm pits instead of a deodorant? I think it has exactly same effect pH wise as you have described about soap. It seems to be quite effective and more natural way of neutralising under pits odor than regular deodorants though and I haven't personally noticed any side effects.
renw0rp··on Fake Amazon reviews 'being sold in bulk' online
I had a driver once in Poland who told me she was avoiding Asian riders because they didn't give 5* scores, while other customers did, and it was affecting her rating. For some reason in western countries it's assumed no problems == 5*. Would be good if there was a baseline to be able to separate what is "alright, nothing to complain but nothing special either" and "exceptional".
renw0rp··on We Test PCIe 4.0 Storage: The AnandTech 2021 SSD Benchmark Suite
TLDR: A good pcie 3.0 drive is often better than most of pcie 4.0 drives.

Hynix P31 seems to be good choice overall if you are looking for an NVMe drive (speed, energy efficiency, 5 yr warranty)

renw0rp··on Constructing an 8-bit relay computer from scratch
is there BOM available? at least for the of the shelf electronic parts
renw0rp··on Deep neck flexor exercises – Back and neck
I actually had some fasting glucose tests done recently (different labs)

20.10.2020: 92 mg/dl 23.10.2020: 91.5 mg/dl

Both labs give around 70-100 as a normal range.

Would you suggest something more?

I had glucose tolerance test done around 2 years ago (glucose&insuline tested before/after consuming 75g of glucose; sample taken at 0h, 1h, 2h). Looks like I have "insuline resistance" which prompted me to eat more vegetables and lose some weight, but I need to admit that it's hard for me to give up on fruits and sweets.

renw0rp··on Deep neck flexor exercises – Back and neck
feeling weaker grip and sensations leading sometimes to clumsiness. I would describe it as slight numbness (in the sense of weaker sensations and a weird, kind of tingly feeling in the fingers). It was becoming a proper numbness when using phone/tablet for prolonged periods, but now I try to avoid doing that.

I have similar tingly sensation in my elbow, and in the worst time I actually woke up at night with pain in the elbow.

It's sometimes better, sometimes worse, and I'm trying what else (other than giving up my job and using computer) can I do to help relieve this issues. COVID pandemic is not helping either getting proper medical attention.

renw0rp··on Deep neck flexor exercises – Back and neck
I started having problems with my elbow and two (when looking at my palm) innermost fingers (pinky and ring fingers). At the beginning I thought it's tennis elbow, but then started having problems with my neck as well and getting dizzy (vertigo, headache and sometimes nausea) when lying down and getting up from the bed. I've noticed that that happens most when my head is on flat surface and even more when it reclines back (when a physiotherapist lowered my head below the flat surface of the bed I was ling on). Did anyone experience something like this or has any advice?

I did have an ultrasound and EMG (electromyography) done which did not show any problems in my elbow.

I do exercise for my neck now and hope that will help... I might add some exercises from the OP to my routine.

PS. Funnily my problems (at the beginning it was only elbow and fingers) started during lockdown, when I finally started doing yoga-type exercises and I felt like I'm getting better at it (I think it's just coincidence, not causation though).

renw0rp··on Snapdrop – AirDrop equivalent through a web browser using WebRTC
Typo: resources
renw0rp··on Snapdrop – AirDrop equivalent through a web browser using WebRTC
Teamspeak (or ventrilo) used to be the way to go when I was into online multiplayer games (~10 years ago). Not in browser, but low latency and extremely low resource requirements (definitely less than one browser tab; we have tried Skype back then as well, but it was using too much recorded for the computers we had back then, especially if there was more than 2 people on the call). You could host teamspeak server yourself on your local LAN. Not sure if there is some easy discovery mechanism or you would need to know the local IP (and ideally set up static DHCP for the "server").

I imagine WebRTC might require some sort of server as well, so I don't think you can get something purely in browser on all machines, but if you learn about anything let me know!

renw0rp··on RoboScan: Lego+Raspberry Pi-powered analog film roll scanner
I'm curious, how is the quality of such a setup vs dedicated scanner?
renw0rp··on Insulation: First the body, then the home (2011)
When I moved to the UK and I was looking for a property to rent I was surprised to read advertisements bragging about "double glazing". I don't really remember seeing single glazing in my home country (even pre-second-word-war had double, just not two pieces of glass in a single window frame, but two separately openable single glazed windows). But it doesn't get that cold (outside) in winter in the UK, while the strongest winter i remember was getting down to -30 degrees celsius. However houses are definitely cooler inside in winter in the UK.

Nowadays there are increased requirements for thermal insulation in new houses and many new buildings where I come from have triple glazed windows, some people get recuperation (warm air having house warms up newly coming air) and some even heat pumps (winters got milder recently, so even air source heat pumps are sufficient most of the years)

Talking about Canada, when I was an exchange student in Halifax, New Scotia, one day when the snow fell (not even a particularly big amount in my opinion) the uni cancelled the classes; we were some of not many people who arrived to the uni building so we went sledging on a small hill nearby. It was the only time in my life that school/uni was cancelled due to weather! So Halifax didn't live up to the stereotype and my expectations about Canada, but maybe it's because it's not really a hardcore part of the country :)

renw0rp··on InstaHide Disappointingly Wins Bell Labs Prize, 2nd Place
There is time for private feedback (before publication) and time for public feedback/discussion (after)
renw0rp··on Benefits of Walking
I've never enjoyed running and never practised it on a regular basis. I have chondromalacia which started (or rather had been diagnosed) in my early twenties. It doesn't prove anything of course, but probably some people are inclined to get joint problems anyway (although running might make it happen quicker probably).
renw0rp··on Security researcher hacks Tesla via Bluetooth LE keyless entry vulnerability
Annoying title for the article. The point is that tesla cars are easy to break into, not that you need a raspberry pi to do so. But having a "raspberry pi" in the title gives you probably more views :|
renw0rp··on Is carbon capture a viable solution?
The "borrowing" is not without some side effects which might be hard or impossible to revert in the future.

It's like driving accelerating train without the breaks and hoping that someone builds tracks fast enough that we won't derail

renw0rp··on WTF Happened in 1971? (2019)
Good that you have your scapegoat. Looks like he has invented greediness
renw0rp··on ESP32-C3 WiFi and BLE RISC-V processor is pin-to-pin compatible with ESP8266
what market are you talking about? hobby projects market? that's for sure, but that's not where the big money is.
renw0rp··on Moving from Macbook to Linux
I've seen 16GB laptop sticks for 40 quid on Amazon today (OOS now though); I've had 32GB in my 14" EliteBook for a long time now, but paid much more for it. It's probably enough for my needs for some time.
renw0rp··on YouTube will now show ads on all videos even if creators don’t want them
Serious question, what's the risk of losing your Gmail account?
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