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Melkman

176 karma · joined August 18, 2012

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Melkman··on London Gatwick has launched a robotic airport parking service
For intra-city trips the car is not a superior mode of transport in the Netherlands. Cars take longer, often can't get as close to your destination, and cost a lot more. And you can't even get a few drinks. The only advantage of a car is you won't get wet if it rains.
Melkman··on AI agent bankrupted their operator while trying to scan DN42
I vote for Slop Kiddies or Vibe Kiddies. And yes, I think most of them are unconsciously incompetent for the task they are trying to execute. I've seen LLM being compared to calculators and I agree. They are great time savers for people who know what they do and how to achieve their goal. They even make previously impossible tasks possible. But if you don't know what is needed for a task you will be struggling to accomplish it.
Melkman··on The foundations of a provably secure operating system (PSOS) (1979) [pdf]
I worked with embedded systems in the 90's and we used pSOS. Today I learned that there are two operating systems named that way that are targeted at different problems. The pSOS we used was heavily targeted to hard realtime performance. https://en.wikipedia.org/wiki/PSOS_(real-time_operating_syst...
Melkman··on First tunnel element of the Fehmarnbelt Tunnel immersed
They are not really comparable are they. One is a rail connection over land and the other is a 130ft deep tunnel for rail and road traffic.
Melkman··on CERN's Exabyte Data Center
More information on the software side of CERN storage can be had here: https://indico.mathrice.fr/event/143/contributions/174/attac...
Melkman··on Clearing 500k feral cats from New York’s streets
American minks will solve this without need to enlarge the sewers....
Melkman··on Cracking Open and Controlling a 747 Fuel Gauge
I really like this picture that demonstrates this size difference: https://www.flickr.com/photos/ramonkok/27081197680
Melkman··on Still Love Telnet
Socat doesn't support STARTTLS. If you want to debug SMTP submission "openssl s_client -starttls smtp -connect server:587" is awesome. Just take care not to use upper case "R" or "Q". Man, why did they implement rekeying and quit in such a bothersome way. Just use recipient and quit instead of RECIPIENT and QUIT.
Melkman··on The Framework Laptop 13
Size, speed, features. You can have a small FPGA for about 2$. You will however be limited in the complexity of the design you can implement because it has limited gates and pins. And limited speed. Like normal processors if you want faster, bigger and more features the cost shoots up. Combine that with the limited market for big FPGA's and they can be very high in price. Mind you that many also have things like a multi core ARM processor on board since many designs need a processor to control the circuit. Same with many interfaces. Would be a shame to use the limited gates in the FPGA for standard things like that.
Melkman··on BYD Seagull EV Priced from $11,400, Gets 10k Orders on First Day
Philips isn't really dying a slow death. The company has been split into pieces. Some of which are very successful like ASML. Some are doing OK like NXP and Signify. Some are struggling like the leftover Philips that only does healthcare now. Other parts have been sold like the consumer goods and the Philips brand licensed as part of those deals. I'm not sure the outcome would have been better had they not split the company.
Melkman··on 129-year-old vessel still tethered to lifeboat found on floor of Lake Huron
To be fair it is 100m vertical. Stand on a 25 story building and look down. That's not a small distance.
Melkman··on NASA Confirms (1000 lbs) Meteoroid Entry
https://web.archive.org/web/20230220204315/https://ares.jsc....
Melkman··on Posters of the IPv4 and IPv6 internet as of Jan 1, 2023
Because IANA started delegating prefixes starting with 2. And haven't done enough delegations to go to 3. Prefixes starting with 0 of F are also in use for mapping IPv4 addresses to IPv6, link local and multicast adressing and other special needs.
Melkman··on Corkscrew optics yield direct line to electronics
For transport, yes light is more desirable. For computing, no. The fact that electrons interact with each other is the basis of computational circuits. The article is about how to get photons to do the same.
Melkman··on Why does the E12 resistor sequence use 27 and 33 instead of 26 and 32?
The reason you can not build a 0% tolerance resistor is the laws of physics. A very high precision resistor can certainly be build but it will never be perfect. Increasing precision has a cost to it. For normal resistors the shape and thickness of the film of resisting material is calculated and the tolerance is mainly dictated by the precision of the manufacturing process. Increasing this precision of the process adds cost. High precision resistors can be trimmed to specification. When you manufacture the resistor with a lower resistance you can use a laser to trim some of the resistive material away. This is an extra step and adds extra cost. While this can be very precise you are limited to what you can measure and there is a limit to that. Also precision is limited by environmental factors like heat, humidity and aging.
Melkman··on Why A4? – The Mathematical Beauty of Paper Size
To rephrase te question: why would somebody be annoyed with the fractional metric size of A-n sizes ?
Melkman··on A Dutch city testing the future of urban life
Indeed, Almere is a sleeping city. Many inhabitants moved from Amsterdam to Almere since gentrification has made housing in Amsterdam almost unobtainable for people with a median income. Almere is comfortable enough and you can get by without a car. But the fun still is in Amsterdam only a half an hour train ride away. In the US it would be called a suburb of Amsterdam.
Melkman··on The US Marines Got Rid of Their Tanks. Is Ukraine Making Them Look Smart?
It's 250k and a bit: the launcher is reusable.
Melkman··on What is the flap about chlorinated chicken? (2018)
Also what drinking water are they comparing to that gives 99% of the chlorine intake ? In dutch drinking water chlorine is not used at all, neither for primary disinfection nor to maintain a residual disinfectant in the distribution network. Still doesn't mean that small chlorine intake is bad for your health. Does seem however they use chlorine rich drinking water to justify the extra intake from chlorinated chickens. https://dwes.copernicus.org/articles/2/1/2009/dwes-2-1-2009....
Melkman··on On iPhone sideloading: it’s ok, I’m changing my mind
Being able to sideload is a double edged sword. Yes, it would be a barrier for Apple to go to far overboard on monetizing the ecosystem. It would also give companies like Microsoft a means of ONLY distributing their applications via their own app store forcing you to side load this app store with less oversight. Maybe they add a forced installer to push their apps ? It's not that I trust Apple that much. It's that I trust other companies like Google, Facebook, Microsoft and Amazon less.
Melkman··on Why are semi trucks in the US and Europe so different? (2018)
A blunt front isn't that bad for aerodynamics as long as it's rounded enough for the air stream not to separate. A lot more can be gained at the back of a truck. Like this: http://learntoflyblog.com/wp-content/uploads/2016/04/4-5.png
Melkman··on Facebook loses users for the first time
If you only use your PC one day a month then yes, you may have to wait sometimes for updates. If you use your PC a few hours every week, nope. If you only use your Quest 2 once a month you've demonstrated my point: there is a barrier to using it.

Windows updates don't prompt anymore. They download automatically and apply at the next reboot. Steam starts at boot and updates every thing in the background. Never had an Nvidia popup, don't use anything else than a driver for my GPU. As soon as you put on the headset and turn on the controllers it wakes up, starts SteamVR and you can play. I don't care how long you've been a PC gamer in the past. The time that gaming on Windows was a chore is long gone. Stuff just works on Windows now.

Melkman··on Facebook loses users for the first time
Ehh, the content is the problem because there is a lack of bad content ? There's a heap of 3D content and growing. Like last years Marvell movies, James Bond, Dune. And movie theaters still show those in 3D. Which works because people go to a movie theater for the experience and donning 3D glasses is a minor annoyance with that mindset. Most people don't go to the movies very often. However people wanting to view a quick movie at home don't want that annoyance. It's a bit the same with VR I think. When you go to an arcade or a friends house the space is already available and you accept being isolated because it's expected. Going for a quick VR session at home is an anti social hassle (unless you got a dedicated VR room or live alone).
Melkman··on Facebook loses users for the first time
That doesn't explain why someone who has an Index doesn't use it. The setup and expense is just one time. The updates are all automatic via Steam. It's just a matter of putting on the headset and go. And yet, just like @wayoutthere , I find myself using it less and less. Not because lack of content either. It's just so inconvenient and awkward to isolate yourself from the other people in vicinity. Plus you'll be moving your arms without regards of your physical environment. So basically you need a room with a 2 meter by 2 meter clear space and no other people available. Most people don't have that. I used the quest 2. Personally I was not impressed. Graphics are soft and simple compared to the Index and the field of view is so small. You can tether it to a PC for better graphics but then you loose the main advantage of not having a cable. And you still keep a small field of view.
Melkman··on Facebook loses users for the first time
As much as I like VR I have to agree it will stay a niche product. The need to wear something on your head is a major hurdle. Like 3D TV's that have mostly disappeared. Also when you are in a VR environment you want to interact with it. You need free physical space to do that which is an other hurdle. There are more niches than gaming only though. Like education and product design and demonstration.
Melkman··on Ask HN: Where do you go to meet interesting people (not engineers)?
Take up a hobby ? Preferably one with a club in your neighborhood. Good way to meet people with at least one common interest. Or do volunteer work that's different from your paying job. You get to know different people and talk about different work. Go to events, workshops, concert or whatever. You can do that online and meet people there. Alas most of the time you'll be on mute and contact with fellow attendees is scarce and difficult. Going to a physical event makes getting to know people easier is my opinion. Covid has made it hard to do this last few years though.
Melkman··on Cost of Attrition
I don't think it works like that. Constant attrition does not prevent your company from relying on individuals. You don't fire you good employees and they won't leave if it's a worthwhile job. With constant attrition you get a core group you rely on. However that group is not as productive as they could be because they spend a lot of time training and integrating new employees that don't stay.
Melkman··on Apple execs: Let's take a 30% cut of Uber and Lyft's membership programs (2018)
Many brands are part of a holding. Like "Just Eat Takeaway.com" Which also owns Grubhub and SkipTheDishes in North America. Mostly active in Europe though.
Melkman··on We handle 80TB and 5M page views a month for under $400
Why would it be necessary to have an engineer on call 24/7 ? If you do your risk calculations and an outage of 12 hours is acceptable in the expected frequency you just let the engineer have a nice evening and night an deal with the outage in the morning. If outages are only to be expected once a year an you can tolerate 48 hours of outage you don't need any on call engineer. Most outages are cause by changes. You can test those and plan putting these in production and have elevated monitoring after this to catch problems early. Only problem remaining is hardware outages. And those are very rare as long as you do decent lifecycle maintenance. As others said before. Not everyone is Google or Amazon and needs 99,999% uptime.
Melkman··on ASML reports fire at its Berlin factory
Not every location does the same thing though. ASML has bought other companies that were key suppliers to them. Like Berliner Glas Group in 2020 which is located in Berlin and is where the accident happened. No other location of ASML will be able to compensate for production losses there.
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