<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: johnwalkr</title><link>https://news.ycombinator.com/user?id=johnwalkr</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Thu, 16 Apr 2026 07:57:58 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=johnwalkr" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by johnwalkr in "The secrets of the Shinkansen"]]></title><description><![CDATA[
<p>Tokyo is relatively dense but it's nothing like what you expect from movies or from visiting there for a few days. The majority of people live in buildings 3 storeys or less (above 3 storeys there are a lot more requirements). There's a ton of detached houses even. The overall density of the 23 wards is slightly less than Paris.<p>When visiting you tend to visit some of the busiest areas and also spend a lot of time on the train. It's tiring and it seems so busy. But since almost every neighbourhood has all amenities and there is no single CBD, when you live there, you realise how much of Tokyo is an endless sea of small apartment buildings with small islands of restaurants and businesses around train stations, plus a handful of larger islands.<p>The article talks about the railways developing areas around Tokyo. This is actually very interesting and the way it sprawled[1] outwards towards places like Yokohama. Railways made commuter towns with amenities and commuter lines to those towns at the same time, and rented and sold real estate in those towns. Over time the areas in between the terminus of each of these lines (usually Shibuya or Shinjuku) and each town filled in until what you see today.<p>[1] I think the debate about whether or not Tokyo is/has urban sprawl depends on your definition. If you take it to mean expanding with lower density on the outskirts, it definitely "sprawled", although today it's more filled in. If you take it to mean unplanned low-density, car-centric expansion, it didn't "sprawl" that much. I've seen the terms car-centric sprawl and train-centric sprawl used to discuss the differences.</p>
]]></description><pubDate>Tue, 14 Apr 2026 17:41:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=47768729</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47768729</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47768729</guid></item><item><title><![CDATA[New comment by johnwalkr in "Lunar Flyby"]]></title><description><![CDATA[
<p>If you are on the near side of the moon[1], you will always see Earth see around Earth as it rotates and as the moon orbits it. You will also see it in different phases, like how we see lunar phases from Earth. If you are on the far side of the moon, you will not see Earth at all as you will always be facing away from it.<p>[1] The Earth does move in the moon's sky a bit. If you are on the near side but getting close to the far side, the Earth will be below the horizon sometimes.</p>
]]></description><pubDate>Tue, 07 Apr 2026 23:51:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=47682829</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47682829</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47682829</guid></item><item><title><![CDATA[New comment by johnwalkr in "A nearly perfect USB cable tester"]]></title><description><![CDATA[
<p>At my workplace someone always orders the what they perceive to be the "best" cables. They aren't thunderbolt, they are just oversized with thick braiding. They are all so stiff and heavy you can barely handle a phone while charging without the cable pulling itself out.</p>
]]></description><pubDate>Sun, 29 Mar 2026 13:12:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=47562868</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47562868</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47562868</guid></item><item><title><![CDATA[New comment by johnwalkr in "Apple Business"]]></title><description><![CDATA[
<p>Personally, I like Apple's iWork. Keynote is slightly less fiddly than Powerpoint. I like that in Numbers you can have multiple movable tables on one screen without constraining column widths etc to each other. I also like that Pages is simpler than word with much more manageable styles, especially when copy and pasting from multiple other documents. But lots of people don't have Macs or like iWork, and in most businesses you eventually need MS Office to work with outside parties so for work the choice is really iWork plus MS Office vs MS Office.<p>MS Office collaboration features work well these days but when you are using Office 365 for work, it's almost inevitable that different files get saved locally, on MS teams, Sharepoint, and OneDrive. It's a version control nightmare.<p>I really like google's suite for work because it nudges everyone towards using only one location for all files, without a other places to save a copy. And it's good enough with Office files that you might only need a few roles to also need MS Office.</p>
]]></description><pubDate>Wed, 25 Mar 2026 18:18:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=47521177</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47521177</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47521177</guid></item><item><title><![CDATA[New comment by johnwalkr in "PC Gamer recommends RSS readers in a 37mb article that just keeps downloading"]]></title><description><![CDATA[
<p>15 years ago I had a 7GB mobile data plan (in Japan). After 7GB, it was throttled to 100kbps. If I tethered my PC and there was an update available, or browsed modern sites (especially while tethered), this could easily be wiped out in a few days. After 7GB, sites like hackernews, google search/maps worked fine, and most websites loaded after a minute at most.<p>10 years ago I still had a 7GB mobile data plan (in Japan). After 7GB, it was throttled to 100kbps. If I tethered my PC and there was an update available, or browsed modern sites (especially while tethered), this could easily be wiped out in a minutes. After 7GB, sites like hackernews, google search/maps worked fine, although most search results failed to load.<p>5 years ago I still had a 7GB mobile data plan (in Japan). After 7GB, it was throttled to 1Mbps. If I tethered my PC and there was an update available, or browsed modern sites (especially while tethered), this could easily (and usually was) wiped out in a few minutes. Browsing reddit easily consumed 1GB in a day. After 7GB, sites like hackernews, google search/maps worked fine, although most search results failed to load.<p>I currently live in Europe, I am too old for dealing with the above shit or dealing with wifi in a town/restaurant/hotel so I pay for unlimited data throughout EU. But, it's fairly common while driving or training around that I end up on 3G. I understand 3G is degraded these days, but it should provide 300-2000 kbps. Almost nothing internet-related works at these speeds today. WhatsApp is the exception, it works eventually. I bet hackernews could load if you could somehow disable all the background things happening. I've had a few experiences where I reached a timeout for a login on Apple, google or MS services, and been locked out of my account for a few days because trying to login with low datarate means trying to login 30x in 10 minutes which must look suspicious.<p>Yesterday I was skiing at a resort and my phone was dying at an incredible rate, like 25% per hour. I don't know for certain but I suspect some app or website was retrying a download of something while in a dodgy service area. I'm sure it's happened that someone has been slightly injured going off into the trees at 2pm at a ski resort (or had a fall on parking lot ice, or fell down stairs in their home, or been run off the road), and not been able to call for help because some app has been loading ads and killed their phone battery.</p>
]]></description><pubDate>Mon, 23 Mar 2026 05:57:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=47485910</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47485910</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47485910</guid></item><item><title><![CDATA[New comment by johnwalkr in "RAM kits are now sold with one fake RAM stick alongside a real one"]]></title><description><![CDATA[
<p>That, and using old G4 or G5 Mac cases are very common projects.</p>
]]></description><pubDate>Sat, 14 Mar 2026 22:34:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=47382022</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47382022</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47382022</guid></item><item><title><![CDATA[New comment by johnwalkr in "Apple Studio Display and Studio Display XDR"]]></title><description><![CDATA[
<p>If I had to guess, with so many devices (speakers, microphone, webcam) on top of any external ones you connect, having multiple inputs especially one that can't possibly connect your computer to those devices, is virtually guaranteeing that some users will complain that it doesn't work. I believe there is a similar reason why usb-c hubs rarely have downstream usb-c ports. When you do find one, they always have several reviews complaining that it doesn't work with 3 hard drives and 2 monitors plugged in.</p>
]]></description><pubDate>Tue, 03 Mar 2026 23:18:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=47240513</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47240513</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47240513</guid></item><item><title><![CDATA[New comment by johnwalkr in "Museum of Plugs and Sockets"]]></title><description><![CDATA[
<p>The historical reason why is that UK homes were wired early in history for lighting with a ring circuit going throughout the house, and this was also literally set in stone so impractical to phase out for a long time.<p>So the regulations had to allow one 50A (for example, I don’t know the actual numbers) fuse supplying an unknown number of outlets and devices, rather than requiring one circuit per small area. Such a large fuse will happily let your radio malfunction and start on fire, so local, smaller fuses are necessary.<p>In other areas a 10A fuse (for example) on a circuit that only goes to one room or one appliance is enough to protect from overloading the circuit as well as most dangerous malfunctions of one device.</p>
]]></description><pubDate>Fri, 27 Feb 2026 02:03:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=47175391</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47175391</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47175391</guid></item><item><title><![CDATA[New comment by johnwalkr in "New California bill to require license plates for electric bikes"]]></title><description><![CDATA[
<p>Making different rules depending on the class of e-bikes make sense vs just pretending all e-bikes are "bikes" and allowed everywhere bikes are, even though at some point they are more akin to motorcycles.<p>In Europe this is mostly working well, although depending on the country there are still a lot of illegal (heavy, fast, throttle-equipped, unlicensed, beyond even class 3) bikes on the roads, bike lanes and bike paths.<p>One benefit is that when you go to buy an e-mountain bike in Europe, the ones for sale are all class 1, and everyone understands only class 1 are legal and allowed on most mountain bike trails. In America nobody cares about class and many just buy the fastest, crappiest model that comes with a "class 1" sticker as well as a setting to bypass all the class 1 limitations. As a result, there are more and more blanket bans on all e-bikes on mountain bike trails in America.</p>
]]></description><pubDate>Thu, 19 Feb 2026 14:46:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=47074332</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47074332</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47074332</guid></item><item><title><![CDATA[New comment by johnwalkr in "Resizing windows on macOS Tahoe – the saga continues"]]></title><description><![CDATA[
<p>I had a new one yesterday. In Apple Music (iPhone), you can long hold on a song or album and press "add to playlist" and then select the playlist. The next action you probably want to do is long hold on another album and tap "add to playlist". You have to wait 2 seconds to do this because a pop-up that says "x added to playlist" appears in the exact location you need to click on. It not only obscures the area, it prevents a tap from registering.</p>
]]></description><pubDate>Mon, 16 Feb 2026 16:07:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=47036745</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47036745</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47036745</guid></item><item><title><![CDATA[New comment by johnwalkr in "Resizing windows on macOS Tahoe – the saga continues"]]></title><description><![CDATA[
<p>>Screens are getting bigger and bigger, yet they make things smaller and harder to click on.<p>And despite things being smaller, there's also white space everywhere so there is less information on your screen.<p>The trend in UIs is making filenames into discrete icons instead of lists. In outlook this morning all I got 3 attachments and it's 3 icons that all are something almost identical like "<word icon>2026-02-13_A....docx" and I have to hover over them to figure out each filename. I don't get it.<p>I'm a Solidworks user. It's a 3D CAD program. From about 2012 to 2018, it was unusable with a display higher than 1080p because it did its own bad scaling of UI. Text elements would overlap and be cut off. Since then it works in general but to make 2D drawings I still change to 1080p. Making drawings involves a lot of clicking on lines and vertexes to add dimensions, but the hitboxes are 1 dimension thick, or even 1 single pixel. It's maddening at 4K. There are selection filters that help, but since it's sluggish in general in 4K I just admit defeat and use 1080p.</p>
]]></description><pubDate>Fri, 13 Feb 2026 09:01:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=47000595</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=47000595</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47000595</guid></item><item><title><![CDATA[New comment by johnwalkr in "Parametric CAD in Rust"]]></title><description><![CDATA[
<p>These projects are cool but to me they seem like they all come from the place: a programmer opens up a CAD program, and within days concludes that they would prefer if they could use their existing scripting skills to make something instead of learning to use the program, including the parametric features. Which is fine, but as a mechanical engineer 99% of the useful/required features are not there.</p>
]]></description><pubDate>Wed, 28 Jan 2026 16:35:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=46797648</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=46797648</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46797648</guid></item><item><title><![CDATA[New comment by johnwalkr in "3D printing my laptop ergonomic setup"]]></title><description><![CDATA[
<p>I use ABS as a baseline, it holds up well, is easier to sand than most other materials, and is soluble in acetone which gives you some nice methods for smoothing layer lines as well as adhering parts together. It requires a heated chamber though.</p>
]]></description><pubDate>Tue, 20 Jan 2026 15:03:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=46692498</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=46692498</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46692498</guid></item><item><title><![CDATA[New comment by johnwalkr in "3D printing my laptop ergonomic setup"]]></title><description><![CDATA[
<p>It becomes pretty weak even on a hot day in the sun and in a hot car can melt (not into a puddle but into al dente pasta).</p>
]]></description><pubDate>Tue, 20 Jan 2026 14:58:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=46692449</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=46692449</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46692449</guid></item><item><title><![CDATA[New comment by johnwalkr in "3D printing my laptop ergonomic setup"]]></title><description><![CDATA[
<p>"It just works" has become true for the top brands of consumer 3d printers in general. They are not simple devices (and neither is a 2D printer), but I don't think they are more complex than they need to be. It's just that they have been iterated enough that they are now mature. But a 3d printer that can print a complete backup of itself is not going to happen in our lifetimes. They are the price they are because of high volumes, off-the-shelf components, injection moulded parts, etc. You cannot make a good 3d printer yourself for anywhere close to low cost of buying a complete one, even if you 3d print as many parts as possible yourself.<p>Just in the last year or so you can get a $600 printer with a heated print chamber and heated material box that keeps the material from absorbing moisture. This takes them to an extra level of "just working".<p>There's a small learning curve, and things like lifted prints occasionally happen, but in this post that is literally one sentence describing the problem and another sentence describing the solution. There's good community support.<p>Plastics not only dominate, metallic 3d printing is not close to being ready for home consumer use, it's $50k for an entry level machine and it still arguably requires a basic machine shop for finishing to be very useful.<p>But there is still a wall many people hit with 3d printing. When it comes time to design something and not merely print an available file, it's hard to know where to start if you don't already have hands-on experience using CAD or at least an introduction to carpentry or something similar. But this is true of most tools, be it woodworking tools, or visual studio. It takes experience to go from an idea in your head to a series of parts that will assemble together. There will be times, especially in the early days of tweaking dimensions and reprinting things.<p>In summary, if you want to design things yourself and count this as tinkering that you don't want to do, it's probably not going to be an enjoyable hobby. If you just want to print things like curtain rings and brackets to hold your screwdrivers on an ikea pegboard, it's virtually tinker-free these days.</p>
]]></description><pubDate>Tue, 20 Jan 2026 14:53:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=46692396</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=46692396</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46692396</guid></item><item><title><![CDATA[New comment by johnwalkr in "SparkFun Officially Dropping AdaFruit due to CoC Violation"]]></title><description><![CDATA[
<p>Those voltage standards are kind of meant for very local things. If you really get into industrial things, one should look to industrial standards that work over longer distances. That is things like RS422, RS485, and increasingly industrial versions of ethernet that use differential signals. One should also learn what a PLC is and understand that in an industrial context, implementing controls in an Arduino or rpi is probably reinventing the wheel to achieve less reliability than industry standards.<p>4 to 20mA sensors are great. Invented in the 50s (!) to replace pneumatic controls and to this day work great. iirc they are usually 24V these days. You missed an important detail; the first 4mA (96mW) powers the sensor/local microcontroller (no local power supply required), and the remaining 4-20mA gives a calibrated current output for voltage/pressure/whatever you are measuring. If the output is less than 4mA or more than 20mA you know something is wrong (and many devices will output 20.1, 20.2 etc currents as a kind of fault code).</p>
]]></description><pubDate>Thu, 15 Jan 2026 04:12:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=46627920</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=46627920</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46627920</guid></item><item><title><![CDATA[New comment by johnwalkr in "Why are my headphones buzzing whenever I run my game?"]]></title><description><![CDATA[
<p>I remember when all MacBooks had it. "What is this red light for?" used to be a common post on forums.</p>
]]></description><pubDate>Thu, 04 Dec 2025 07:19:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=46144706</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=46144706</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46144706</guid></item><item><title><![CDATA[New comment by johnwalkr in "Quake Engine Indicators"]]></title><description><![CDATA[
<p>The remaster from a few years ago is great. It has minor graphical improvements such that it looks how you remember it.</p>
]]></description><pubDate>Fri, 28 Nov 2025 09:23:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=46077044</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=46077044</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46077044</guid></item><item><title><![CDATA[New comment by johnwalkr in "Nearly all UK drivers say headlights are too bright"]]></title><description><![CDATA[
<p>The rain thing is true anywhere I've driven. Even worse, when there are old white lines grinded away for some change, and new white lines added 0.5 lanes away. In certain wet conditions the old lines become equally or more "white" than the new ones.</p>
]]></description><pubDate>Tue, 18 Nov 2025 23:00:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=45973438</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=45973438</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45973438</guid></item><item><title><![CDATA[New comment by johnwalkr in "Nearly all UK drivers say headlights are too bright"]]></title><description><![CDATA[
<p>It varies a lot in the US. Major highway in Florida? Very visible lines. Minor highway in Colorado with all the paint and reflectors scraped off by snowplows, even if the road is in good condition? Not as visible. Rural somewhere? Good luck.</p>
]]></description><pubDate>Tue, 18 Nov 2025 22:57:16 +0000</pubDate><link>https://news.ycombinator.com/item?id=45973416</link><dc:creator>johnwalkr</dc:creator><comments>https://news.ycombinator.com/item?id=45973416</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45973416</guid></item></channel></rss>