<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: timerol</title><link>https://news.ycombinator.com/user?id=timerol</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 07 Apr 2026 08:35:00 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=timerol" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by timerol in "5,300-year-old 'bow drill' rewrites story of ancient Egyptian tools"]]></title><description><![CDATA[
<p>> always<p>Can you be more specific here? In an article about civilization 5300 years ago, where India has had a human population for at least 65,000 years, saying "always" is fairly vague</p>
]]></description><pubDate>Sun, 15 Feb 2026 16:43:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=47025123</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=47025123</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47025123</guid></item><item><title><![CDATA[New comment by timerol in "Waymo seeking about $16B near $110B valuation"]]></title><description><![CDATA[
<p>The average monthly payment for a used car in the US in 2025 was $532, according to <a href="https://www.experian.com/blogs/ask-experian/average-car-payment/" rel="nofollow">https://www.experian.com/blogs/ask-experian/average-car-paym...</a>. This does not count insurance, taxes, parking, or gas.<p>A status symbol will easily run you $1000/mo. I currently pay $350/mo (including cost of capital), and I don't know how I would pay less for a car that's not actively falling apart. Chevy Spark, manual transmission, $7k KBB value, averaging 500 miles per month.</p>
]]></description><pubDate>Mon, 02 Feb 2026 21:12:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=46861608</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46861608</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46861608</guid></item><item><title><![CDATA[New comment by timerol in "Hacking a Casio F-91W digital watch (2023)"]]></title><description><![CDATA[
<p>This is a really cool hack, and I wish I could pay for things with a dumb watch. It's just the right level of useful and silly to be up my alley. But the article, as others have mentioned, is a little off. The author did not "invent" the guess-and-check method for verifying resonance. That's been a staple of radio since the beginning, which is why original tuner dials were actually variable capacitors<p>> Therefore, an ideal antenna should consist of a 22.12 metre long wire, but by convention fractions of λ-lambda (λ/2, λ/4, λ/8, λ/16, etc.) are opportunely chosen.<p>This sentence is confused enough to be incorrect. λ/2 is generally preferred as an antenna length (standard dipole configuration) because it will resonate at the appropriate frequency with desirable standing wave characteristics (current maximum and zero voltage at input, voltage maximum and current minimum at ends). λ/4 can be used as a half-dipole, but it requires a ground plane to resonate properly. There are also arguments to be made for a 5λ/8 antenna, but none that I'm aware of for λ/8 or λ/16.<p>In practice for small antennas, physical length and electrical length are only tenuously related, so it's a matter of creating a circuit that acts like an antenna of the chosen length.</p>
]]></description><pubDate>Fri, 09 Jan 2026 14:27:10 +0000</pubDate><link>https://news.ycombinator.com/item?id=46554183</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46554183</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46554183</guid></item><item><title><![CDATA[New comment by timerol in "Sugar industry influenced researchers and blamed fat for CVD (2016)"]]></title><description><![CDATA[
<p>Note that a kg of fat contains about 9000 calories, while a kg of sugar contains about 4000 calories, so this is really a startling claim, if true</p>
]]></description><pubDate>Wed, 07 Jan 2026 18:07:48 +0000</pubDate><link>https://news.ycombinator.com/item?id=46530046</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46530046</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46530046</guid></item><item><title><![CDATA[New comment by timerol in "Imagine 130M Washing Machines"]]></title><description><![CDATA[
<p>3 feet times 3 feet is 9 square feet</p>
]]></description><pubDate>Mon, 05 Jan 2026 18:50:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=46502938</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46502938</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46502938</guid></item><item><title><![CDATA[New comment by timerol in "Show HN: Books mentioned on Hacker News in 2025"]]></title><description><![CDATA[
<p>I was surprised to see "An Abundance of Katherines", given that it's not John Green's newest or most highly regarded work. I looked into the comments to see why it was being discussed, but it seems to be a classification error - all of the comments are discussing "Abundance", the political nonfiction book by Ezra Klein and Derek Thompson. That one makes more sense on the list, given that it was released this March</p>
]]></description><pubDate>Mon, 22 Dec 2025 15:10:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=46354712</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46354712</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46354712</guid></item><item><title><![CDATA[New comment by timerol in "GPT-5.2"]]></title><description><![CDATA[
<p>Also a "stacked pair" of USB type-A ports, when there are clearly 4</p>
]]></description><pubDate>Thu, 11 Dec 2025 18:42:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=46235244</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46235244</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46235244</guid></item><item><title><![CDATA[New comment by timerol in "Did that Colorado station sign say gas for only $1.69? Yes, it did"]]></title><description><![CDATA[
<p>The neat thing about electric cars is that they get cleaner as the grid gets cleaner. If you bought an EV in 2015 (when this report was published) and were worried about the grid mix, I have good news for you. Electricity production from coal in the US is in the process of falling off a cliff, dropping to 15% of the electricity mix in 2023 from over 30% in 2015. <a href="https://wolfstreet.com/wp-content/uploads/2024/02/US-electricity-generation-2024-02-26-by-source_-768x616.png" rel="nofollow">https://wolfstreet.com/wp-content/uploads/2024/02/US-electri...</a></p>
]]></description><pubDate>Thu, 11 Dec 2025 16:28:49 +0000</pubDate><link>https://news.ycombinator.com/item?id=46233457</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46233457</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46233457</guid></item><item><title><![CDATA[New comment by timerol in "Did that Colorado station sign say gas for only $1.69? Yes, it did"]]></title><description><![CDATA[
<p>You're gonna have to locate yourself for this comment to make any sense. Plenty of places still get snow regularly in winter, and nothing humans can do will change that</p>
]]></description><pubDate>Thu, 11 Dec 2025 16:18:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=46233291</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46233291</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46233291</guid></item><item><title><![CDATA[New comment by timerol in "Launch HN: BrowserBook (YC F24) – IDE for deterministic browser automation"]]></title><description><![CDATA[
<p>> only available for Mac so far, sorry!<p>Is there a plan to change this? Building on Electron should make it manageable to go cross-platform. 2026 will be the year of the Linux desktop, as the prophecies have long foretold.<p>Off-topic, but Kernel refers to <a href="https://www.onkernel.com">https://www.onkernel.com</a>. A bit of an awkward name</p>
]]></description><pubDate>Thu, 11 Dec 2025 16:00:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=46233023</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46233023</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46233023</guid></item><item><title><![CDATA[New comment by timerol in "Italy's longest-serving barista reflects on six decades behind the counter"]]></title><description><![CDATA[
<p>Yes, this was in fact an explanation of a joke. "In Soviet Russia, Rome is a poor city" requires both a currently-existing Soviet Russia, and Rome to be a part of it. Both of those are far-fetched. "Russia seems poised to invade Europe in the near future" is a bad explanation, since they are currently invading a country geographically in Europe.</p>
]]></description><pubDate>Wed, 10 Dec 2025 14:50:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=46218317</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=46218317</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46218317</guid></item><item><title><![CDATA[New comment by timerol in "Waymo robotaxis are now giving rides on freeways in LA, SF and Phoenix"]]></title><description><![CDATA[
<p>This also applies to getting in a car with a human driver, or to driving yourself. Or to any other way of getting from point A to point B</p>
]]></description><pubDate>Wed, 12 Nov 2025 20:11:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=45905772</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45905772</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45905772</guid></item><item><title><![CDATA[New comment by timerol in "Radiant Computer"]]></title><description><![CDATA[
<p>Alexis Sellier is the author of all of the posts under /log</p>
]]></description><pubDate>Wed, 05 Nov 2025 19:07:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=45826603</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45826603</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45826603</guid></item><item><title><![CDATA[New comment by timerol in "Researchers complete first human trial on viability of enteral ventilation"]]></title><description><![CDATA[
<p>I really expected this to be overblown clickbait, but the article delivers on the title about as well as it could. I have seen many more breathless articles on treatments that weren't already conducting human safety trials as well as having animal effectiveness trials concluded.<p>And yeah, it turns out that mammals can absorb oxygen through their butts. Weird</p>
]]></description><pubDate>Wed, 22 Oct 2025 00:49:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=45663701</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45663701</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45663701</guid></item><item><title><![CDATA[New comment by timerol in "Debugging Humidity: Lessons from deploying software in the physical world"]]></title><description><![CDATA[
<p>Okay, but what about humidity? I was excited to read about a failure mode where the moisture content of air mattered, or at least get mildly clickbaited into learning about a tool called Humidity. Instead there are no other references to humidity apart from the title</p>
]]></description><pubDate>Tue, 14 Oct 2025 14:47:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=45580738</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45580738</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45580738</guid></item><item><title><![CDATA[New comment by timerol in "Memory access is O(N^[1/3])"]]></title><description><![CDATA[
<p>I did not interpret the article as you did, and thought it was clear throughout that the author was talking about an individual read from memory, not reading all of a given amount of memory. "Memory access, both in theory and in practice, takes O(N^⅓) time: if your memory is 8x bigger, it will take 2x longer to do a read or write to it." Emphasis on "a read or write".<p>I read "in 2x time you can access 8x as much memory" as "in 2x time you can access any byte in 8x as much memory", not "in 2x time you can access the entirety of 8x as much memory". Though I agree that the wording of that line is bad.<p>In normal big-O notation, accessing N bytes of memory is already O(N), and I think it's clear from context that the author is not claiming that you can access N bytes of memory in less time than O(N).</p>
]]></description><pubDate>Wed, 08 Oct 2025 18:36:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=45519203</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45519203</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45519203</guid></item><item><title><![CDATA[New comment by timerol in "Why did Crunchyroll's subtitles just get worse?"]]></title><description><![CDATA[
<p>> the rest is a matter of habit and taste, so you can't improve it<p>This statement is incorrect. All artistic endeavors are matters of habit and taste. You absolutely can improve at matters of taste</p>
]]></description><pubDate>Tue, 07 Oct 2025 13:46:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=45503013</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45503013</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45503013</guid></item><item><title><![CDATA[New comment by timerol in "Sharpie found a way to make pens more cheaply by manufacturing them in the U.S."]]></title><description><![CDATA[
<p><a href="https://www.bestmoney.com/tax-relief/learn-more/how-trump-tax-plans-can-affect-you" rel="nofollow">https://www.bestmoney.com/tax-relief/learn-more/how-trump-ta...</a> is more of a personal finance website, but it reports (from the Tax Foundation), over a 10 year timeframe, a $3.8T total deficit increase over previous law. (CBO estimates are less favorable on deficit increases.) The same article estimates $2.1T in tariff revenue based on policy in early September.<p>Seems closer to plugging half the gap than "cancelled"</p>
]]></description><pubDate>Mon, 06 Oct 2025 21:18:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=45496448</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45496448</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45496448</guid></item><item><title><![CDATA[New comment by timerol in "Solar leads EU electricity generation as renewables hit 54%"]]></title><description><![CDATA[
<p>I don't know of any specific thresholds, but it's worth mentioning that 54% of Q2 was renewable, and solar peaks in Q2. Solar was also only 36.8% of that renewable generation (just under 20% of Q2's total), so there's a long way to go before solar is 40% of the total energy mix.<p>If there is an important threshold when solar reaches 40% of the full year's production, then solar will need to almost quadruple before that's a concern. For all of 2024, solar was 22.4% of renewables, and renewables were 47% of the total[1], meaning that solar was 10.5% of total electricity over the full year.<p>[1] <a href="https://ec.europa.eu/eurostat/en/web/products-eurostat-news/w/ddn-20250319-1" rel="nofollow">https://ec.europa.eu/eurostat/en/web/products-eurostat-news/...</a></p>
]]></description><pubDate>Wed, 01 Oct 2025 18:25:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=45441288</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45441288</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45441288</guid></item><item><title><![CDATA[New comment by timerol in "Overcoming barriers of hydrogen storage with a low-temperature hydrogen battery"]]></title><description><![CDATA[
<p>TFA is about storing hydrogen in magnesium hydride</p>
]]></description><pubDate>Sat, 20 Sep 2025 15:47:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=45314352</link><dc:creator>timerol</dc:creator><comments>https://news.ycombinator.com/item?id=45314352</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45314352</guid></item></channel></rss>