The "To Keep Up" Wiki

A collection of information we find useful

User Tools

Site Tools

Trace:
2024lctgmeetingchats

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
2024lctgmeetingchats [2024.09.25 08:50] – Steve Isenberg2024lctgmeetingchats [2024.11.20 09:36] (current) – Steve Isenberg
Line 4: Line 4:
 These are a record of the chats that were passed during meetings in 2024.  They have been edited to a small extent.\\  These are a record of the chats that were passed during meetings in 2024.  They have been edited to a small extent.\\ 
 To find chats for a given day, for example January 10, 2024, search for datecode 20240110 (2024, month 01, day 10). To find chats for a given day, for example January 10, 2024, search for datecode 20240110 (2024, month 01, day 10).
 +
 +====20241120====
 +===Potpourri===
 +<WRAP prewrap>
 +<code>
 +10:19:42 From Barry Kort to Everyone:
 + QC3.0 stands for Quick Charge 3.0. It's a fast-charging technology developed by Qualcomm that allows for rapid charging of compatible devices. It works by intelligently adjusting the voltage and current levels during the charging process to optimize charging speed and efficiency.
 +10:20:14 From Barry Kort to Everyone:
 + Key features of QC3.0:
 + Faster charging: It can charge devices significantly faster than standard charging methods.
 + Intelligent charging: It adapts to the specific needs of the device being charged, ensuring optimal charging performance.
 + Improved efficiency: It reduces charging time while minimizing heat generation.
 + If your device supports QC3.0 and you use a compatible charger, you can expect faster charging times and a shorter wait between charges.
 +10:21:21 From Rich M to Everyone:
 + For what it's worth, USB-C PD has pretty much overtaken Qualcomm QC.
 +10:27:23 From Rich M to Everyone:
 + Maybe don't place a MagSafe phone on top of your old floppy disks :)
 +10:48:13 From tedpk to Everyone:
 + https://www.youtube.com/shorts/K6i9cwLtA3c
 +11:06:10 From Harry Forsdick to Everyone:
 + Here is a video of the Lex250 show from firefly.com:  https://www.youtube.com/watch?v=EH5VksSzdRU
 +</code>
 +</WRAP>
 +[[lexingtoncomputergroup|return]]
 +
 +
 +====20241113====
 +===Passwords and Passkeys===
 +<WRAP prewrap>
 +<code>
 +10:09:09 From Steve Isenberg to Everyone:
 + Secret questions work if answer is not related to the question
 +10:10:01 From Bob Primak to Everyone:
 + I think the point is, we don't want to be using the same communication channel for a login and the password reset process.
 +10:24:10 From Adam Broun to Everyone:
 + Replying to "Secret questions wor..."
 + ..and as long as you don’t reuse the answers
 +10:26:39 From Carl Lazarus to Everyone:
 + Replying to "Secret questions wor..."
 + A prime number has no factors.
 +10:37:28 From Barry Kort to Everyone:
 + For a while, LCC had an expired certificate, and the browser detected this and put up a warning message.
 +10:43:00 From Mitch Wolfe to Everyone:
 + Examples of bad certificates: https://badssl.com/
 +11:09:20 From Steve Isenberg to Everyone:
 + There is no mathematical difference between a “Public” key and a “Private” key.  Your system makes up two keys that work in a PKI system. Then it picks one as “Private” and the other as “Public” and shares the Public one.
 +11:20:23 From Dan Silber to Everyone:
 + I don't understand. If a password manager generates a different password for each application/server, how can compromising one password affect any other application/server?
 +11:25:03 From Steve Isenberg to Everyone:
 + In short, those password hint questions are also used as passwords (as they can bypass your secure password and reset it).  Best to use a random response to the password hint questions (or generate another secure password for the answers).
 +</code>
 +</WRAP>
 +[[lexingtoncomputergroup|return]]
 +
 +
 +====20241106====
 +===OBS screen recorder and Using AI to write code===
 +<WRAP prewrap>
 +<code>
 +10:08:38 From Steve Isenberg to Everyone:
 + Why MKV and not other choices like MP4
 +10:11:47 From Bob Primak to Everyone:
 + MKV is known to support lossless video compression, which can result in larger file sizes but better video quality preservation.
 + https://cloudinary.com/guides/video-formats/mkv-format-what-is-mkv-how-it-works-and-how-it-compares-to-mp4#mkv-vs-mp4-4-key-differences
 +10:17:22 From Adam Broun to Everyone:
 + Once you’ve recorded something can you edit it in here or would you use some other software?
 +10:40:34 From Barry Kort to Everyone:
 + LexMedia videos typically require a technical staff of three to six technicians on duty during a live session.
 +10:43:42 From Steve Isenberg to Everyone:
 + If anyone is interested in touring LexMedia let me know.
 +10:44:29 From Steve Isenberg to Everyone:
 + We can arrange a tour for a number of us to see the facility and discuss its technology.
 +
 +</code>
 +</WRAP>
 +[[lexingtoncomputergroup|return]] 
 +
 +====20241030====
 +===QR Codes and Drone Sky Shows===
 +<WRAP prewrap>
 +<code>
 +10:02:13 From Barry Kort to Everyone:
 + That’s Derek Muller on the video.
 +10:04:54 From Bob Primak to Everyone:
 + BTW, Ukraine has been building their own drones locally, using parts from the US and EU countries. China won't knowingly supply parts to Ukraine. But the country of origin may ultimately be China, via US and EU importers.
 +10:07:04 From Carl Lazarus to Everyone:
 + I thought SOS stood for Save Our Ship
 +10:07:51 From Barry Kort to Everyone:
 + That’s  a “backronym.”
 +10:10:37 From Bob Primak to Everyone:
 + The bar code "check digit" digit is not independent -- it's a "parity bit".
 +10:35:52 From Barry Kort to Everyone:
 + Gemini, what does 'QR' stand for in "QR Codes"?
 +
 + Gemini responds:
 +
 + «QR stands for Quick Response.
 +
 + It's a type of barcode that can store a lot more information than traditional barcodes. This is why they're often used for things like product tracking, website links, and payment information.»
 +10:49:12 From Steve Isenberg to Everyone:
 + But can satellite GPS info provide enough accuracy to position the drones so closely?  Hopefully he’ll explain.
 +10:50:07 From Bob Primak to Everyone:
 + See last week's discussion. The ground control units are not straightforward GPS units. There's one central processing ground unit which provides the detailed location info needed ot control the drones.
 +10:53:46 From Bob Primak to Everyone:
 + One amazing thing about the Wonder Woman premiere video: The music was performed live.
 +10:55:21 From Mitch Wolfe to Everyone:
 + My neighbor said that there have been drone shows in Asia starting 4 years ago.
 +10:58:20 From Barry Kort to Everyone:
 + Half the current members of Lexington Toastmasters do not have English as their first language.
 +10:58:53 From John Rudy to Everyone:
 + I am a master at making toast
 +10:59:09 From Mitch Wolfe to Everyone:
 + Identity politics bleeds into everything...
 +10:59:33 From Bob Primak to Everyone:
 + In the early days, programmers were on a par with secretaries -- not considered professionals. I know this was not accurate, but that was the perception. after WWII, most of the women in STEM went back to being stay at home wives.
 +10:59:38 From John Rudy to Everyone:
 + and I was once proficient in both English and FORTRAN
 +11:00:05 From tedpk to Everyone:
 + As is telling the truth! -- your phone is millions of times more CPU and memory than AGC -- remember that you could see the individual transistors in the 2X 3input NAND gates
 +11:00:26 From Judy & Mike Alexander to Everyone:
 + In the *early* days, programmers were often mathematicians.
 +11:01:32 From Bob Primak to Everyone:
 + That was a bit earlier, but well within the WWII era. There was still a shortage of men in these fields.
 +11:02:44 From Steve Isenberg to Everyone:
 + Do drones ever crash during a show?  Do any ever run out of power and drop to the ground, during a show?
 +11:03:04 From Judy & Mike Alexander to Everyone:
 + My 'knowledge' of that relates to the early 1950s.
 +11:03:16 From Bob Primak to Everyone:
 + A recent drone show had a couple of injuries as drones did crash. Not from power loss, but from some sort of navigation errors.
 +11:04:20 From John Rudy to Everyone:
 + "navigate the regulatory climate".  wow
 +11:05:17 From Bob Primak to Everyone:
 + Mike -- so early in thew postwar period? Still a shortage of men for civilian work and academic programs.  John -- Yes, this is a common issue in science and technology.
 +11:06:34 From John Rudy to Everyone:
 + some years ago there were reports of birds getting sucked into jet engines.  I suppose the same could happen with drones
 +11:09:41 From Bob Primak to Everyone:
 + Drones are a bit small, and they don't have the rapid, large volume of airflow which would endanger birds. Though, collisions are certainly possible.
 +11:10:02 From John Rudy to Everyone:
 + it was rare to see a female programmer in the 60s.  I started seeing them in the mid 70s.  In 1980 about 30% of the incoming were woman, most right out of college.  To generalize, about 50% of MITs undergraduate population is female
 +11:11:58 From John Rudy to Everyone:
 + Overall, more than 50% of college graduates are woman as more men drop out
 +11:12:22 From Bob Primak to Everyone:
 + John -- The 1960's through the 1980's was the real postwar period. Women left the workforce generally. More technical fields lost more women than less technical professions.
 +11:15:19 From Judy & Mike Alexander to Everyone:
 + Here are some names of early female computer folks I knew of:  Ida Rhodes, Margaret R. Fox, Ethel Marden.  Yoou might find them on Wikipedia.
 +11:16:52 From Harry Forsdick to Everyone:
 + I think one of the more amazing things here is that Intel seems to have developed this organization generate much less income than their normal business.  Normally I would have expected them to only be doing this to illustrate their product lines — chips etc.
 +11:17:26 From Bob Primak to Everyone:
 + Interesting list, Mike. But how many of these women are as well-known as their male colleagues who were involved in computer development?
 +11:19:16 From Judy & Mike Alexander to Everyone:
 + They were well known among computer experts.
 +11:19:41 From Bob Primak to Everyone:
 + Harry -- public relations and building brand awareness are important parts of surviving as both a business and a consumer tech company. So this is PR at work here.  Building the brand presence among consumers. How many drone shows has AMD done? Or NVidia?
 +11:20:33 From Mitch Wolfe to Everyone:
 + https://www.forbes.com/sites/aarontilley/2016/01/04/intel-acquires-ascending-technologies/ also invested $60M into Chinese drone company.
 +11:21:13 From Bob Primak to Everyone:
 + China is a huge market, as well as a major source for components and technical experts.
 +11:23:46 From S David Kahan to Everyone:
 + ok guys how expensive are these shows as compared to Fireworks shows?
 +11:27:08 From Bob Primak to Everyone:
 + Much cheaper, potentially. Remember, the drones themselves are fully reusable.
 +11:27:22 From Larry Wittig to Everyone:
 + How do they look from different perspectives -- like the opposite sides of a football stadium?
 +11:27:54 From John Rudy to Everyone:
 + plus less dangerous, despite the recent crashes
 +11:28:40 From John Rudy to Everyone:
 + and they can do things, like the running reindeer, that explosions cannot do
 +11:28:59 From Bob Primak to Everyone:
 + Last week we saw several views of drone shows over stadiums, including a rock concert venue. The displays are fully 3D and can be enjoyed from many different perspectives. Some of the video footage used wristbands instead of drones.
 +11:30:02 From Harry Forsdick to Everyone:
 + Sure, I guess the impact for Intel impressing people with their drone shows, results in people thinking of Intel as better than other providers of components, but … I still wonder how long these people we have been seeing will be in this business.  I guess by the time Intel get tired of spending money and personal on this publicity,  they will spin out the drone show organization to some of the current employees.  It turns out that there are already many different developers and presenters of drone shows.  There are other good videos on YouTube about this same topic presented by other companies who offer their services for developing through presentations.  For the Lexington drone show, one of these other organizations were involved.
 +11:33:58 From Harry Forsdick to Everyone:
 + Although the host for this video started out kind of lame, I will give him credit for covering a lot of different topics needed to pull off these drone shows.  I would love to find a really good video on how drone show developers/operators use computer tools to design a set of instructions for controlling drones in such a show.  Perhaps looking at some of the programs that are available and showing how they work.  Hmm, subject of a new presentation???
 +11:34:49 From John Rudy to Everyone:
 + why the receivers in his ears?
 +11:35:25 From Harry Forsdick to Everyone:
 + He’s actually one of those Disney animatronic thingies…
 +11:36:00 From John Rudy to Everyone:
 + this was apparently done for HS students
 +11:36:05 From Bob Primak to Everyone:
 + Harry -- OK, if you get started now, when can you get a presentation and maybe a speaker for us on this topic? Seriously, anyone in the group, I would be interested in such a presentation.
 +11:36:10 From Harry Forsdick to Everyone:
 + Oh, high school students: This is a marketing film to attract new employees
 +11:36:24 From Mitch Wolfe to Everyone:
 + There are drone choreographing companies and other considerations as explained https://www.sunco.com/blogs/sunco-blog/could-led-drones-replace-your-fourth-of-july-fireworks?srsltid=AfmBOorP8GX4jwG9pSd7rjPBzWvuuEwKNCiFDX2oltrTbZD2q3Edb4B9
 +</code>
 +</WRAP>
 +[[lexingtoncomputergroup|return]] 
  
 ====20240904==== ====20240904====
2024lctgmeetingchats.1727279400.txt.gz · Last modified: 2024.09.25 08:50 by Steve Isenberg