<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: mshook</title><link>https://news.ycombinator.com/user?id=mshook</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Thu, 10 Sep 2026 07:39:31 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=mshook" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by mshook in "From Rockets to Heat Pumps"]]></title><description><![CDATA[
<p>2/3 of Norway homes use heat pumps...<p><a href="https://www.theguardian.com/environment/2023/nov/23/norway-heat-pumps-cold-heating" rel="nofollow">https://www.theguardian.com/environment/2023/nov/23/norway-h...</a></p>
]]></description><pubDate>Sat, 06 Dec 2025 12:54:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=46172953</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=46172953</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46172953</guid></item><item><title><![CDATA[New comment by mshook in "The race to find GPS alternatives"]]></title><description><![CDATA[
<p>The B-52 and SR-71 had star tracking systems for that exact reason. Not sure about the B-52 version but the SR-71 worked in daylight.<p><a href="https://www.glennsmuseum.com/items/b52_astro/" rel="nofollow">https://www.glennsmuseum.com/items/b52_astro/</a><p><a href="https://theaviationgeekclub-com.cdn.ampproject.org/v/s/theaviationgeekclub.com/the-sr-71-astroinertial-navigation-system-aka-r2-d2-was-crucial-in-blackbird-mission-heres-why" rel="nofollow">https://theaviationgeekclub-com.cdn.ampproject.org/v/s/theav...</a></p>
]]></description><pubDate>Sun, 08 Jun 2025 20:47:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=44219390</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=44219390</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44219390</guid></item><item><title><![CDATA[New comment by mshook in "How the Sun Enterprise 10000 was born (2007)"]]></title><description><![CDATA[
<p>That's my experience as well in 2 different companies where we went from 2 E15K to 2 E25K because it was "cheaper" than rewriting who knows how much code, for how long and at what cost<p>At the other one, we jumped from 2 25k to 2 M9000-64 for the same reasons...</p>
]]></description><pubDate>Sun, 18 May 2025 22:40:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=44024828</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=44024828</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44024828</guid></item><item><title><![CDATA[New comment by mshook in "Boom XB-1 First Supersonic Flight [video]"]]></title><description><![CDATA[
<p>Concorde holds the world record in both directions actually.<p>F-BTSD did it:<p>- westbound in 32 hours 49 minutes and 3 seconds on 12/13 October 1992, LIS-SDQ-ACA-HNL-GUM-BKK-BAH-LIS (Lisbon, Saint-Domingue, Acapulco, Honolulu, Guam, Bangkok, Bahrein, Lisbon)<p>- astbound in 31 hours 27 minutes and 49 seconds on 15/16 August 1995, JFK-TLS-DXB-BKK-GUM-HNL-ACA-JFK (New York, Toulouse, Dubai, Bangkok, Guam, Honolulu, Acapulco, New York)<p><a href="https://en.wikipedia.org/wiki/Concorde_histories_and_aircraft_on_display#French_production_aircraft" rel="nofollow">https://en.wikipedia.org/wiki/Concorde_histories_and_aircraf...</a></p>
]]></description><pubDate>Tue, 28 Jan 2025 23:33:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=42859565</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=42859565</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42859565</guid></item><item><title><![CDATA[New comment by mshook in "Boom XB-1 First Supersonic Flight [video]"]]></title><description><![CDATA[
<p>Well Concorde showed pre-orders don't mean much... :-D</p>
]]></description><pubDate>Tue, 28 Jan 2025 18:50:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=42856302</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=42856302</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42856302</guid></item><item><title><![CDATA[New comment by mshook in "XB-1 First Supersonic Flight [video]"]]></title><description><![CDATA[
<p>Fair enough...</p>
]]></description><pubDate>Tue, 28 Jan 2025 18:36:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=42856104</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=42856104</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42856104</guid></item><item><title><![CDATA[New comment by mshook in "Boom XB-1 First Supersonic Flight [video]"]]></title><description><![CDATA[
<p>My take is it's not even an economic problem. Unless you fly really fast (like Mach 3++), flying east sucks.<p>Let's assume we have a plane capable of Mach 3+: the SR-71 holds a record for flying from NYC to London in 1h54 and it could do well over Mach 3. Let's assume our plane can do the same in 2 hours.<p>If you take off from NYC at 10am, you will land at 5pm local time in London. Sure it's a lot faster than a regular flight but you didn't gain as much as flying west bound.<p>With the same 2 hour flight (because when you fly that high, wind doesn't make such a big difference), you could leave London at 10am and land in NYC at 7am local time, that's so much better.<p>But that's for a plane doing Mach 3+. Boom is planning to fly slower than Concorde (Mach 1.7 vs Mach 2.02).<p>Concorde did that in 3 hours FYI.</p>
]]></description><pubDate>Tue, 28 Jan 2025 18:27:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=42855969</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=42855969</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42855969</guid></item><item><title><![CDATA[New comment by mshook in "Boom XB-1 First Supersonic Flight [video]"]]></title><description><![CDATA[
<p>I'm not sure why you're being downvoted because you're right: they have the technology, they don't have an engine, and this just looks like a civilian version of a fighter jet pretty much (except it has 3 turbojets).<p>And what people always fail to mention when it comes to supersonic flights is one of the main issue is neither a technological nor an economical one nor a supersonic boom one.<p>Traveling west bound is great: you leave in the morning and you arrive, local time, before the local time of your origin point. But traveling east bound isn't that great: you still have to leave in the morning and you land in the evening, so the only thing you gained is a shorter flight time but not a full day of work or shopping or what not.<p>So on regular flights (because Concorde was profitable, at least on the French side, thanks to charter flights), people would fly Concorde to go to NYC and fly back on a red eye...<p>As someone who worked for and flew on Concorde, I think what they're doing is amazingly cool though and I hope they succeed. But I'm still unsure what the long term plan is...</p>
]]></description><pubDate>Tue, 28 Jan 2025 18:15:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=42855808</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=42855808</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42855808</guid></item><item><title><![CDATA[New comment by mshook in "Boom XB-1 First Supersonic Flight [video]"]]></title><description><![CDATA[
<p>This is correct, reheat / afterburner was used from Mach 0.9 something to 1.7, after which they'd were off. So yes, Concorde could supercruise.</p>
]]></description><pubDate>Tue, 28 Jan 2025 18:05:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=42855691</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=42855691</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42855691</guid></item><item><title><![CDATA[New comment by mshook in "Linux 6.12 Features Super Real-Time, Sched_ext, Intel Xe2 and Pi 5"]]></title><description><![CDATA[
<p>As far as I know (source, I still patch the LTS kernels), the fan control of the POE hat for the Pi 4 hasn't been merged yet.<p>This thing was announced on May 2021...<p>So not so good is really an understatement.<p><a href="https://www.raspberrypi.com/news/announcing-the-raspberry-pi-poe-hat/" rel="nofollow">https://www.raspberrypi.com/news/announcing-the-raspberry-pi...</a></p>
]]></description><pubDate>Sun, 29 Sep 2024 22:15:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=41691234</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=41691234</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41691234</guid></item><item><title><![CDATA[New comment by mshook in "Flow Computing aims to boost CPUs with ‘parallel processing units’"]]></title><description><![CDATA[
<p>At this point, probably never it seems...</p>
]]></description><pubDate>Sat, 21 Sep 2024 23:43:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=41613478</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=41613478</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41613478</guid></item><item><title><![CDATA[New comment by mshook in "Iron Mountain: It's Time to Talk About Hard Drives"]]></title><description><![CDATA[
<p>The issue with (software) raid is you have no idea if what you're copying isn't actually corrupted. If the filesystem isn't checksumed there's no guarantee.</p>
]]></description><pubDate>Fri, 13 Sep 2024 09:45:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=41529603</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=41529603</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41529603</guid></item><item><title><![CDATA[New comment by mshook in "Show HN: Dut – a fast Linux disk usage calculator"]]></title><description><![CDATA[
<p>I don't understand the point of the script, it's nothing more than:<p><pre><code>  du -h --max-depth=1 "$@" | sort -hr</code></pre></p>
]]></description><pubDate>Thu, 11 Jul 2024 07:37:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=40934465</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=40934465</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40934465</guid></item><item><title><![CDATA[New comment by mshook in "A response to the git.centos.org changes"]]></title><description><![CDATA[
<p>Pretty much but that's my experience as well, I made the same comment above...</p>
]]></description><pubDate>Mon, 26 Jun 2023 21:58:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=36486447</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=36486447</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36486447</guid></item><item><title><![CDATA[New comment by mshook in "A response to the git.centos.org changes"]]></title><description><![CDATA[
<p>The issue here is with your auditors. I mean if RH tells you a CVE has been fixed with a backport, sure you can challenge that fact but at the same time and with the same standards, it'd mean your auditor would also have to check the actual source of your patched Ubuntu packages to make sure the new versions fixed the security bugs.<p>The bottom line really is plenty of auditors I've seen don't know how to check for vulnerabilities other than by checking a version... That's it.. Their tools or reporting only know package must have a version greater than x.y.z.</p>
]]></description><pubDate>Mon, 26 Jun 2023 21:55:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=36486405</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=36486405</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36486405</guid></item><item><title><![CDATA[New comment by mshook in "Online 8086 Emulator"]]></title><description><![CDATA[
<p>You are, on a 8086 the address width is 20 bits, hence the 1 Mo limit.<p><a href="https://en.wikipedia.org/wiki/X86_memory_segmentation" rel="nofollow">https://en.wikipedia.org/wiki/X86_memory_segmentation</a></p>
]]></description><pubDate>Mon, 10 Apr 2023 16:17:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=35514023</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=35514023</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35514023</guid></item><item><title><![CDATA[New comment by mshook in "Online 8086 Emulator"]]></title><description><![CDATA[
<p>It's more like a PC 8086 emulator (or at least it tries to be). I mean the example is a call to the BIOS...<p><a href="http://www.ctyme.com/intr/rb-0210.htm" rel="nofollow">http://www.ctyme.com/intr/rb-0210.htm</a><p>Long time no see Ralf Brown's Interrupt List...</p>
]]></description><pubDate>Mon, 10 Apr 2023 16:13:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=35513985</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=35513985</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35513985</guid></item><item><title><![CDATA[New comment by mshook in "Typical CO2 Levels at Home Test"]]></title><description><![CDATA[
<p>There was a study which focused on pilots...<p><a href="https://www.hsph.harvard.edu/news/press-releases/carbon-dioxide-levels-on-flight-deck-affect-airline-pilot-performance/" rel="nofollow">https://www.hsph.harvard.edu/news/press-releases/carbon-diox...</a><p>The results are very interesting to say the least:<p>The findings showed that the pilots were 69% more likely to receive a passing grade on a maneuver when CO2 levels were 700 ppm compared with 2,500 ppm. When CO2 levels were 1,500 ppm, the pilots were 52% more likely to successfully perform a maneuver than when CO2 levels were 2,500 ppm. When the researchers compared the difference in pilot performance at 700 ppm and 1,500 ppm, the difference was not statistically significant, but they did find that pilots were more likely to successfully perform some of the most difficult maneuvers at the lower CO2 level. The study also found that the negative effects of CO2  on flight performance became more pronounced the longer the pilots were in the simulator.</p>
]]></description><pubDate>Mon, 24 Oct 2022 16:55:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=33319199</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=33319199</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33319199</guid></item><item><title><![CDATA[New comment by mshook in "American Airlines agrees to purchase Boom Supersonic Overture aircraft"]]></title><description><![CDATA[
<p>You're right but I'm sure both companies had good reasons for their schedules (for instance noise restrictions at night).<p>And realistically, from your plane at JFK to Manhattan, that's got to be a least an hour and a half (immigration and cab/limo). And assuming you'd have to be at JFK just an hour before your flight (and for an international flight that's ballsy), plus with transportation still taking an hour, you just wasted 3.5 hours commuting forth and back to the airport.<p>That schedule wouldn't work unless you flew to Manhattan. And even then, it'd be tight.</p>
]]></description><pubDate>Tue, 16 Aug 2022 16:14:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=32484875</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=32484875</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32484875</guid></item><item><title><![CDATA[New comment by mshook in "American Airlines agrees to purchase Boom Supersonic Overture aircraft"]]></title><description><![CDATA[
<p>For AF, my understanding (and my source actually worked that side of the business) is Concorde got profitable with special flights (aka people renting the plane to travel the world) not from just your regular scheduled flights.<p>But keep in mind neither BA nor AF really paid for their fleet...</p>
]]></description><pubDate>Tue, 16 Aug 2022 16:05:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=32484737</link><dc:creator>mshook</dc:creator><comments>https://news.ycombinator.com/item?id=32484737</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32484737</guid></item></channel></rss>