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2025lctgmeetingchats [2025.04.23 16:25] – Steve Isenberg2025lctgmeetingchats [2025.06.11 08:49] (current) – Steve Isenberg
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 These are a record of the chats that were passed during meetings in 2025.  They have been edited to a small extent.\\  These are a record of the chats that were passed during meetings in 2025.  They have been edited to a small extent.\\ 
 To find chats for a given day, for example January 15, 2025, search for datecode 20250115 (2025, month 01, day 15). To find chats for a given day, for example January 15, 2025, search for datecode 20250115 (2025, month 01, day 15).
 +
 +====20250611====
 +===AI Chatbots===
 +<WRAP prewrap>
 +<code>
 +10:37:48 From tedpk to Everyone:
 + https://www.todayainews.com/?utm_source=Internal&utm_campaign=1361235&utm_medium=NTA&utm_content=19317276&utm_term=2439250
 +10:42:15 From tedpk to Everyone:
 + AI reasoning models aren’t as smart as they were cracked up to be, Apple study claims
 + News
 + By Ben Turner published 3 hours ago
 + A new study by Apple has ignited controversy in the AI field by showing how reasoning models undergo 'complete accuracy collapse' when overloaded with complex problems.  https://www.livescience.com/technology/artificial-intelligence/ai-reasoning-models-arent-as-smart-as-they-were-cracked-up-to-be-apple-study-claims?utm_medium=referral&utm_source=pushly&utm_campaign=All%20Push%20Subscribers
 +
 +</code>
 +</WRAP>
 +
 +[[lexingtoncomputergroup|return]]
 +
 +
 +====20250528====
 +===Selected Nobel Prizes in Medicine===
 +<WRAP prewrap>
 +<code>
 +10:43:11 From Bob Primak to Everyone:
 + Preparation of Methylene Blue: 
 + Methylene blue is prepared by the oxidation of dimethyl-4-phenylenediamine in the presence of sodium thiosulfate. 
 + By treating the solution of N, N-dimethyl-p-phenylenediamine and N, N, -dimethylaniline hydrochlorides with 
 + H2S and FeCl3 or another suitable oxidizing agent. 
 + By oxidation of p- amino dimethyl aniline with ferric chloride in the presence of hydrogen sulphide. The dye is zinc chloride double salt of the chloride. 
 + N, N-Dimethyl - p - phenylenediamine reacts with sodium thiosulfate to produce thiosulfuric acid which then condenses with N, N-dimethylaniline when it comes in the presence of Na2Cr2O7 or sodium dichromate to form the indamine, then with copper sulphate and sodium dichromate to the methylene blue. 
 + Technically, neither methylene blue nor its preparation directly relates to methylene. Though, the starting materials do have dimethyl (methylene) functional groups.
 +10:45:23 From Bob Primak to Everyone:
 + (Can everyone tell I have a degree in chemistry? 🤓)
 +11:23:50 From Bob Primak to Everyone:
 + citation:  https://www.vedantu.com/chemistry/methylene-blue
 +11:49:54 From Barry Kort to Everyone:
 + “Two AIs Compete At Variant Sudoku!” (from Cracking the Cryptic)
 + https://www.youtube.com/watch?v=UPuVungHl0o
 +11:51:50 From Barry Kort to Everyone:
 + This illustrates what Ted is now saying.
 +</code>
 +</WRAP>
 +
 +[[lexingtoncomputergroup|return]]
 +
 +====20250528====
 +===Space Junk part 2, sharing screen to TV, dark side of the moon===
 +<WRAP prewrap>
 +<code>
 +10:37:26 From tedpk to Everyone:
 + https://www.sciencedirect.com/science/article/pii/S0094576525001900  Space sustainability rating: Designing a composite indicator to incentivize satellite operators to pursue long-term sustainability of the space environment
 +10:38:03 From Bob Primak to Everyone:
 + I have one more little article on Space Debris and Climate Change which I wanted to get to.
 +10:38:49 From tedpk to Everyone:
 + https://news.mit.edu/2025/deploying-practical-solution-space-debris-0514   Deploying a practical solution to space debris
 + Researchers share the design and implementation of an incentive-based Space Sustainability Rating.
 + Department of Aeronautics and Astronautics | Media Lab
 + Publication Date:
 + May 14, 2025
 +10:44:46 From Bob Primak to Everyone:
 + MIT News Article about the Space Sustainability Rating
 +10:45:12 From Bob Primak to Everyone:
 + https://news.mit.edu/2025/study-climate-change-will-reduce-number-satellites-safely-orbit-space-0310
 +10:46:59 From Bob Primak to Everyone:
 + Spacedesk app https://www.spacedesk.net/
 +10:48:00 From Bob Primak to Everyone:
 + MIT News Article about the Space Sustainability Rating  https://news.mit.edu/2025/deploying-practical-solution-space-debris-0514
 +10:49:17 From tedpk to Everyone:
 + A New Monte-Carlo Model for the Space Environment https://arxiv.org/pdf/2405.10430
 +10:59:06 From Bob Primak to Everyone:
 + Climate change could make space debris problem worse https://news.mit.edu/2025/study-climate-change-will-reduce-number-satellites-safely-orbit-space-0310
 +10:59:07 From Barry Kort to Everyone:
 + MOCAT from MIT stands for:
 + MIT Orbital Capacity Assessment Tool
 +11:19:23 From Drew King to Everyone:
 + https://www.spacedesk.net  -- load it on windows
 + https://deskreen.com  -- loads on windows, mac, linux
 +11:23:19 From Barry Kort to Everyone:
 + HDMI can bundle in audio along with video.
 +11:28:04 From Barry Kort to Everyone:
 + Cast might be video only, no audio.
 +11:30:46 From Dan Silber to Everyone:
 + I bought an inexpensive HDMI hub that allows connecting up to four displays to one computer HDMI port. The limitation is that all of the 
 +        displays show the same thing, which can be a duplicate of my laptop screen or an extension of it. Very simple, but you do need to run HDMI cables.
 +11:33:06 From Mitch Wolfe to Everyone:
 + I've been casting from a PC Chrome browser over wireless to a Roku stick on a TV for years. Video and audio both work.
 +11:36:48 From Mitch Wolfe to Everyone:
 + You use Windows settings Add Bluetooth or other device to add the slave monitor.
 +</code>
 +</WRAP>
 +
 +[[lexingtoncomputergroup|return]]
 +
 +====20250514====
 +===Space Junk===
 +<WRAP prewrap>
 +<code>
 +10:36:05 From Steve Isenberg to Everyone:
 + Might this space debris reduce sunlight on the planet?
 +10:37:01 From Steve Isenberg to Everyone:
 + Maybe an ice age caused by space debris?
 +10:38:03 From Bob Primak to Everyone:
 + The overall density of space debris, even at Kessler Event levels, isn't sufficient to significantly shade the earth. There's actually much more space between the objects than the animations in these videos depicts.
 +10:49:49 From Larry Wittig to Everyone:
 + Maybe we shouldn't paint satellites.
 +
 +10:56:50 From Bob Primak to Everyone:
 + Paint is a small percentage of the mass of debris. But making everything magnetic might help.Wait for the videos on lasers.
 +</code>
 +</WRAP>
 +
 +[[lexingtoncomputergroup|return]]
 +
 +====20250507====
 +===Heat Pumps===
 +<WRAP prewrap>
 +<code>
 +10:08:26 From Jonathan Goode to Everyone:
 + oil fired hydronic here
 +10:08:50 From Shelly Lowenthal to Everyone:
 + I updated 2 split units for standard AC but I was delivered 2 heat pump units.
 +10:09:16 From Rebecca to Everyone:
 + I have gas
 +10:09:19 From Mitch Wolfe to Everyone:
 + Converted to natural gas from oil. Forced hot water baseboards
 +10:09:28 From Shelly Lowenthal to Everyone:
 + Still have gas and pellet stove heat, though
 +10:09:35 From Dan Silber to Everyone:
 + I bought a house in 1986 that previously had been converted from resistance baseboard to a heat pump.
 +10:10:41 From Peter & Pam to Everyone:
 + Converted to heat pump from oil/hydronic a year ago
 +10:11:37 From Bill Haley to Everyone:
 + Propane Hydronic added heat pumps with 22 kW solar. 1895 house with 2007 addition
 +10:16:02 From Judy & Mike Alexander to Everyone:
 + My wife is a realtor.  no new-construction home she's listed has been all-electric.
 +10:28:26 From Bill Haley to Everyone:
 + Aren't these McMansion's air conditioned?
 +11:05:04 From Rich Moffitt to Everyone:
 + https://www.coolcalc.com/
 +</code>
 +</WRAP>
 +
 +[[lexingtoncomputergroup|return]]
  
 ====20250423==== ====20250423====
2025lctgmeetingchats.1745450743.txt.gz · Last modified: by Steve Isenberg