<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: m4rtink</title><link>https://news.ycombinator.com/user?id=m4rtink</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 26 May 2026 19:58:45 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=m4rtink" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by m4rtink in "A successful Japanese trial of a ramjet engine designed for Mach‑5 aircraft"]]></title><description><![CDATA[
<p>If the capsule/rocketplane has some lift & preferably steerable aerosurfaces then you can compensate the purely ballistic deceleration somewhat.<p>But yeah, if it is going down almost vertically then this will not be enough.</p>
]]></description><pubDate>Tue, 26 May 2026 14:27:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=48280317</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48280317</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48280317</guid></item><item><title><![CDATA[New comment by m4rtink in "The AI bubble isn't like the internet bubble"]]></title><description><![CDATA[
<p>Yeah, I think there will be much more waste when the bubble finally pops & it will be harder to recover valuable stuff.<p>Imagining people buying scrap AI hardware from creditors or bankruptcy auctions & harvesting all the HBM RAM chips and NAND storage chips to sell & throwing away the useless AI optimized compute chips and unusable enterprise interconnects.</p>
]]></description><pubDate>Tue, 26 May 2026 11:39:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=48278351</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48278351</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48278351</guid></item><item><title><![CDATA[New comment by m4rtink in "Flatpak Will Depend on Systemd"]]></title><description><![CDATA[
<p>Yeah, it sounds promising but far from simple in practice. :)<p>There were some early attempts in mobile Linux distros, like original Ubuntu Touch or even Nokias MeeGo and it turns out the main issue is actually improving security while not blocking whole categories of applications from working.<p>In the early Ubuntu Touch case I remember that you had to as a user allow your image viewer access to individual pictures from SD card, one by one, to see them in the app. This made it basically useless.<p>In the MeeGo use case IIRC third party chroot/shell environments like Termux were impossible due to the way their security/sandboxing system was setup. At the same time all apps had internet and microphone access & it was impossible to disallow it per app.</p>
]]></description><pubDate>Tue, 26 May 2026 11:17:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=48278139</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48278139</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48278139</guid></item><item><title><![CDATA[New comment by m4rtink in "A successful Japanese trial of a ramjet engine designed for Mach‑5 aircraft"]]></title><description><![CDATA[
<p>Like, you could do a partial orbit & then drop down over the destination. But it would need much more delta-v & an orbital class heat shield.<p>It was proposed as nuclear warhead delivery method though:
<a href="https://en.wikipedia.org/wiki/Fractional_Orbital_Bombardment_System" rel="nofollow">https://en.wikipedia.org/wiki/Fractional_Orbital_Bombardment...</a></p>
]]></description><pubDate>Tue, 26 May 2026 09:59:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=48277474</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48277474</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48277474</guid></item><item><title><![CDATA[New comment by m4rtink in "A successful Japanese trial of a ramjet engine designed for Mach‑5 aircraft"]]></title><description><![CDATA[
<p>And once you do all that, you will need to also handle the massive atmospheric heating from friction, so that the whole thing does not melt during flight.<p>Again, not that problematic for missiles due to shorter flight times and single-use ablative heatshields being viable.</p>
]]></description><pubDate>Tue, 26 May 2026 07:03:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=48276126</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48276126</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48276126</guid></item><item><title><![CDATA[New comment by m4rtink in "A successful Japanese trial of a ramjet engine designed for Mach‑5 aircraft"]]></title><description><![CDATA[
<p>90 minutes is a full low Earth orbit cycle. For a suborbital hop it should be about half of that at maximum for any 2 points on Earth.</p>
]]></description><pubDate>Tue, 26 May 2026 06:57:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=48276068</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48276068</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48276068</guid></item><item><title><![CDATA[New comment by m4rtink in "Anthropic is expanding to Colossus2. Will use GB200"]]></title><description><![CDATA[
<p>Its totally inefficient - burning the same gas in a co-generation plant, ideally combined with district heating, would produce the same amount of pollution and basically make use of all the energy.</p>
]]></description><pubDate>Thu, 21 May 2026 11:52:54 +0000</pubDate><link>https://news.ycombinator.com/item?id=48221144</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48221144</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48221144</guid></item><item><title><![CDATA[New comment by m4rtink in "War game exposed U.S. vulnerability to low-tech warfare"]]></title><description><![CDATA[
<p>Suppose the ship is immobilized or under tow after hitting a mine for example. Or even just in port in range of cheap dumb drones.<p>Basically these make it much more likely you loose ships if they stop moving for any reason.</p>
]]></description><pubDate>Tue, 19 May 2026 08:40:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=48190796</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48190796</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48190796</guid></item><item><title><![CDATA[New comment by m4rtink in "Why does Amazon have no Western rivals?"]]></title><description><![CDATA[
<p>Alza in the Czech Republic + Allegro in Poland and some surrounding countries are basically Amazon on steroids.<p>It basically looks like Amazon gave up in at least Central Europe and local companies are eating their lunch, but better.</p>
]]></description><pubDate>Mon, 18 May 2026 09:38:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=48177289</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48177289</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48177289</guid></item><item><title><![CDATA[New comment by m4rtink in "I Bought a “Junk” PSP From Japan"]]></title><description><![CDATA[
<p>You can get a proxy shipping address via Tenso (different service but iirc same company as Buyee) and then have stuff shipped there from Amazon.jp & consolidated and shipped to you.<p>I used it successfully for all the cheap and/or rare second hand books available on Japanese Amazons that Amazon will normally not ship internationaly (as its actually a miriad of small sellers listing the via Amazon and often only shipping domestically).</p>
]]></description><pubDate>Sat, 16 May 2026 12:11:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=48159474</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48159474</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48159474</guid></item><item><title><![CDATA[New comment by m4rtink in "Details of the Daring Airdrop at Tristan Da Cunha"]]></title><description><![CDATA[
<p>Polar stations are even more inaccessible during polar winter with months of total darkness and it is just too dangerous to reach them. The winter-over crews need to be completely self-sufficient until the sun rises again.</p>
]]></description><pubDate>Fri, 15 May 2026 09:44:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=48146557</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48146557</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48146557</guid></item><item><title><![CDATA[New comment by m4rtink in "Bitcoin trader recovers wallet with help of Claude"]]></title><description><![CDATA[
<p>So the remotely running AI now can guess many of your past and possibly future passwords when somone else promps it to ? Seems handy!</p>
]]></description><pubDate>Thu, 14 May 2026 23:31:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=48142594</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48142594</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48142594</guid></item><item><title><![CDATA[New comment by m4rtink in "Leaving GitHub for Forgejo"]]></title><description><![CDATA[
<p>Make all LLM output licensed as AGPLv3 - the license is viral, right ? ;-)<p>Unless you can actually prove what your model has ingested & if you have the license for it in court.</p>
]]></description><pubDate>Thu, 14 May 2026 12:40:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=48134558</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48134558</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48134558</guid></item><item><title><![CDATA[New comment by m4rtink in "New stainless steel can survive conditions for hydrogen production in seawater"]]></title><description><![CDATA[
<p>Don't they also react also with about anything else ? I would be a bit worried what else "gets eaten" if something as reactive as chlorine is released into the atmosphere on a wider scale.</p>
]]></description><pubDate>Wed, 13 May 2026 14:19:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=48122276</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48122276</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48122276</guid></item><item><title><![CDATA[New comment by m4rtink in "Starship V3"]]></title><description><![CDATA[
<p>Radiators need to be flat and thin - not really good for radiation shielding.<p>But guess if you use some sort of fluid in them, you could use a reservoir of it for shielding something.</p>
]]></description><pubDate>Wed, 13 May 2026 12:29:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=48121052</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48121052</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48121052</guid></item><item><title><![CDATA[New comment by m4rtink in "Starship V3"]]></title><description><![CDATA[
<p>Starlinks are in low enough orbit to passively decay in less than 5 years, that really can't meaningfully contribute to a Kessler syndrome.<p>Chinese mega constellations on higher orbits & their spent stages left in space are a bigger issues.<p>Still in case it got going & made higher orbits unusable, starlink would likely still work just fine on the lower self-cleaning orbits, not to mention using a partial (and hopefully soon full) RLV for replenishment.</p>
]]></description><pubDate>Wed, 13 May 2026 12:28:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=48121040</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48121040</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48121040</guid></item><item><title><![CDATA[New comment by m4rtink in "Starship V3"]]></title><description><![CDATA[
<p>The Starlink orbits are so low that stuff deorbits quite quickly withou active propulsion. So while this might work for a while, you woul need to replenish that junk for it to continue working, in all the many orbifs you would want to deny.</p>
]]></description><pubDate>Wed, 13 May 2026 09:55:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=48119862</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48119862</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48119862</guid></item><item><title><![CDATA[New comment by m4rtink in "Starship V3"]]></title><description><![CDATA[
<p>Well, that likely already exists as Starshield - not to mention all the pubmic SAR sats everyone has by this point.</p>
]]></description><pubDate>Wed, 13 May 2026 09:52:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=48119840</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48119840</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48119840</guid></item><item><title><![CDATA[New comment by m4rtink in "Bambu Lab is abusing the open source social contract"]]></title><description><![CDATA[
<p>My main issues:<p>* one day remote printing no longer works, you need to set it up again or even get into prolonged debugging session<p>* remote printing works one ane device but not other<p>* one color toner cartridge on a color laser printer is empty or near empty, printer refuses to print without all manners of overrides on the local control panel, making it unusable for non-technical users<p>Well, the last point is basically sabotage by the manufacturer to make you buy more stuff, as it can print B/W perfectly fine or with slighly less quality until that one cartridge is replaced. But I guess that kinda proves my original point. :)</p>
]]></description><pubDate>Tue, 12 May 2026 23:08:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=48115777</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48115777</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48115777</guid></item><item><title><![CDATA[New comment by m4rtink in "Bambu Lab is abusing the open source social contract"]]></title><description><![CDATA[
<p>We built an enclosure fort our printers from a metal storage rack & added active ventilation that suck out any fumes outside the building. Still, you need to physically get there, check the bed is clean & start the print manually.<p>There are are also regular software checks for overheating or thermistor wiring failing & we know they are there and are enabled as we built the Marlin firmware ourself from source (which is quite easy once you properly configure it). Not to mention we are sure we are the ones in control over the firmware.<p>We also have a bunch of web cameras watching the printers print that we can monitor remotely.</p>
]]></description><pubDate>Tue, 12 May 2026 19:46:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=48113438</link><dc:creator>m4rtink</dc:creator><comments>https://news.ycombinator.com/item?id=48113438</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48113438</guid></item></channel></rss>