--- Log opened Tue Jul 25 00:00:09 2023
00:19 < hprmbridge> nmz787> anyone here?
00:19 < fenn> hello
00:20 < hprmbridge> nmz787> how much refund should I request on the tracked RC mower from China? It doesn't go the advertised 5MPH, it does maybe 2 at most (just a guess though). Plus they had to send replacement motors and controllers, and I've sunk at least 20 hours into grinding and cutting and going to a machinist to shave off some metal on the sprockets to get them properly centered vs the idler wheels
00:21 < fenn> that is a matter between you and your predatory marketplace
00:21 < hprmbridge> nmz787> it was $4482 total, with some spare alternator (motor power/charger) belts, few engine air filters, 5 sets or so of spare mower blades (destroyed the first set it came installed with during first and second uses)
00:22 < hprmbridge> nmz787> some people have told me to request it all, since it isn't doing the job I bought it for
00:22 < hprmbridge> nmz787> and also first received it like 2 months ago
00:22 < fenn> 150% plus time invested seems reasonable, but then again i'm not a business owner
00:22 < hprmbridge> nmz787> I can only request the full amount I paid
00:22 < hprmbridge> nmz787> (or less)
00:23 < fenn> i wonder who created that rule
00:23 < hprmbridge> nmz787> I don't have a totally useless thing... but it is definitely not the thing I wanted or need
00:24 < fenn> why is 2 mph not good enough?
00:24 < hprmbridge> nmz787> if it had the smarts of a roomba... it could be tolerable (the travel speed being so low is the main problem)
00:24 < hprmbridge> nmz787> I can easily outwalk it
00:24 < hprmbridge> nmz787> it was advertised at 5MPH
00:24 < hprmbridge> nmz787> (i.e. 2.5X faster mowing speed)
00:25 < fenn> what limits the speed?
00:25 < hprmbridge> nmz787> I guess the power of the motors
00:25 < hprmbridge> nmz787> the torque?
00:26 < fenn> would you still pay $4482 for the thing you want?
00:26 < hprmbridge> nmz787> also after it failed, I found the controller originally used said 350W, while they specced the motors to be 900W
00:26 < hprmbridge> nmz787> so like, clearly they didn't have a properly engineered product
00:26 < hprmbridge> nmz787> and they're not selling it as DIY kit/platform
00:26 < hprmbridge> nmz787> yeah $4482 was fine if it worked from day 1 (or 2 even)
00:28 < hprmbridge> nmz787> but like after "the engineers talked", it took 3 weeks to even get the new parts to me... then a week or two of working nights on it... and still a few hours need done to properly mount the new controllers (tested with zipties and sort of shoved in the electronics cage like a ratsnest)
00:30 < fenn> personally i would only put a string trimmer on an autonomous mower for safety reasons
00:30 < fenn> getting weed whacked is not fun but you probably won't lose a limb
00:32 < fenn> 900W seems like plenty, is it 1800W total?
00:32 < fenn> there's also the issue of specmanship in the motors
00:32 < hprmbridge> nmz787> yeah, that's why I agreed to purchase a RC mower (with the thought that maybe someday I could drive it with arduio-whatever)
00:32 < fenn> i.e. "it runs at 900W for 0.01 seconds before the insulation melts"
00:32 < hprmbridge> nmz787> I'm not sure if it was 900 per side, or total...
00:33 < hprmbridge> nmz787> yeah, basically
00:33 < hprmbridge> nmz787> ugh, I have more pictures than alibaba allows to be uploaded
00:33 < hprmbridge> nmz787> now I have to GIMP together the last 6 or 8 into one mega picture
00:34 < fenn> don't worry, nobody will ever look at it
00:35 < hprmbridge> nmz787> are you doing anything constructive/adventurous with your summer?
00:37 < fenn> frantically learning AI stuff
00:37 < fenn> not dying
00:39 < hprmbridge> nmz787> sounds legit
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00:45 < fenn> http://fennetic.net/sd/ridem_robot_rassler.jpg
00:46 < fenn> wrong tractor but it's still funny
00:52 < fenn> the one that got away http://fennetic.net/sd/ridem_robot_rassler2.jpg
01:09 < hprmbridge> nmz787> 😄
01:25 < fenn> here we go, what i initially intended. surprisingly challenging to get tank treads on a robot: http://fennetic.net/sd/ridem_robot_rassler3.jpg
01:39 < hprmbridge> nmz787> luckily the mower hasn't given me any scares yet
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03:48 < fenn> .tw https://nitter.nl/theojaffee/status/1681116259700686853
03:48 < fenn> is that a no go
03:48 < fenn> .t
03:48 < EmmyNoether> Theo (@theojaffee): 'Different framing of the same problems leads to vastly different vibesLW Rationalists: you fools, we are up against cosmic eldritch horrors beyond our comprehension. We must fight and defeat them at all costs, or be wiped out. Rage, rage against the dying of the light!Deutschians: with the right knowledge, no problem is beyond our capability to solve. With the right tools, no concept is beyond our understanding. Let's figur
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04:28 < fenn> custom instructions for chatgpt https://nitter.nl/pic/orig/media%2FF1qaLxWXoAABdgf.jpg
04:28 < fenn> i guess it's a consumer grade system prompt
04:31 < nsh> .gpt4 are there any finite towers of tetration of irrational numbers equal to a rational number?
04:32 < gptpaste> ​Tetration is an operation of iterated exponentiation. It is denoted by a↑↑b for integers a and b, where a is the base and b is the height of the tower.The question asks if there are any finite towers of tetration involving irrational numbers that equal a rational number. As far as we know, there isn't any known general method to solve equations involving tetration, e - https://bin.gy/sturgailen
04:32 < nsh> as far as you know isn't very far, monster
05:10 < hprmbridge> kanzure> george at the dublin longevity conference https://twitter.com/aubreydegrey/status/1683595377210187778
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05:24 < fenn> .t
05:24 < EmmyNoether> Short but sweet :-) George just gave me his talk title:  "A focused plan for extreme longevity (not mere aging reversal or slowing)." Yes, George Church himself is now describing aging reversal as "mere". We're gonna get this done...
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05:40 < fenn> .t https://nitter.nl/ilyasut/status/1681818327411310592
05:40 < EmmyNoether> Ilya Sutskever (@ilyasut): 'Beware of ideas that, as a consequence of believing in them, make you feel superior to other people' | nitter.nl
05:44 < nsh> yes, like when napoleon didn't merely want to conquer the low countries...
05:45 < nsh> neither hubris nor ambition are indicators of likely success
05:51 < hprmbridge> alonzoc> The conference looks interesting
05:54 < fenn> i see it more from the perspective of a mind virus ensuring its survival
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09:30 < hprmbridge> nmz787> https://www.semiconductors.org/wp-content/uploads/2023/07/SIA_July2023_ChippingAway_website.pdf
09:30 < hprmbridge> nmz787> ASSESSING AND ADDRESSING THE LABOR MARKET GAP FACING THE U.S. SEMICONDUCTOR INDUSTRY
09:33 < hprmbridge> nmz787> We project the semiconductor industry’s workforce will grow by nearly 115,000 jobs by 2030,
09:33 < hprmbridge> nmz787> from approximately 345,000 jobs today to approximately 460,000 jobs by the end of the
09:33 < hprmbridge> nmz787> decade, representing 33% growth. Of these new jobs, we estimate roughly** 67,000—or 58%
09:33 < hprmbridge> nmz787> of projected new jobs (and 80% of projected new technical jobs)—risk going unfilled at
09:33 < hprmbridge> nmz787> current degree completion rates.** Of the unfilled jobs, 39% will be technicians, most of whom
09:33 < hprmbridge> nmz787> will have certificates or two-year degrees; 35% will be engineers with four-year degrees or
09:33 < hprmbridge> nmz787> computer scientists; and 26% will be engineers at the master’s or PhD level.
09:33 < hprmbridge> nmz787>  https://cdn.discordapp.com/attachments/1064664282450628710/1133436897134391296/image.png
09:40 < hprmbridge> nmz787> According to research from a multi-year study completed by FIRST, the organization and its programs have led to increased interest in STEM fields that go beyond piquing student interest and translate into higher rates of students pursuing an education or career in a STEM field. Compared to their peers, FIRST alumni are more likely to declare a major in engineering or computer science at 68% (vs. a
09:40 < hprmbridge> nmz787> peer group at 29%). Moreover, female alumni of FIRST are also more likely to declare a major in engineering or computer science at 51% (vs. a peer female group at 16%).
09:50 < docl> the market seems more willing to pay software developers enough to buy a house than actual engineers :/
10:10 < hprmbridge> kanzure> what do those technicians do?
10:47 < hprmbridge> nmz787> Clean the fab machines, replace parts, turn screws for calibration
10:47 < kanzure> how much training does that.. need?
10:49 < hprmbridge> nmz787> There's a couple 2 week college programs, then months of on the job at least
10:50 < fenn> 2 years apparently
10:50 < hprmbridge> nmz787> https://www.pcc.edu/opportunity-center/jobs/semiconductor/
10:50 < hprmbridge> nmz787> 10 days plus $500/week PAY
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13:20 < L29Ah> .t https://arxiv.org/abs/2307.12008
13:20 < EmmyNoether> [2307.12008] The First Room-Temperature Ambient-Pressure Superconductor
13:21 < fenn> let's hope this year doesn't have too many more surprises
13:25 < hprmbridge> alonzoc> Saw it, big sus but if it's true I'll eat my hat
13:25 < hprmbridge> yashgaroth> da video https://www.youtube.com/watch?v=EtVjGWpbE7k
13:26 < fenn> .t
13:26 < EmmyNoether> Magnetic Property Test of LK-99 Film - YouTube
13:28 < fenn> the video could be showing eddy currents in a normal conductor such as the copper (?) backing
13:29 < fenn> "The sample was thermally deposited on a copper plate."
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15:16 < hprmbridge> Eli> Interesting plant that encourages its own nitrogen fixation: https://www.youtube.com/watch?v=CFyd-kC6IUw
16:07 < hprmbridge> yashgaroth> https://sciencecast.org/casts/suc384jly50n a second video has hit the towers
16:10 < hprmbridge> yashgaroth> (levitation this time, though I'm not a physics)
16:15 < hprmbridge> alonzoc> I really hope the superconductivity paper is real haven't read it yet but if it is...
16:16 < hprmbridge> alonzoc> Well... Someone get cracking on mass production technique
16:35 < jrayhawk> reminder that people eat cereals because they contain opioid receptor agonists, not because they're a well-aligned food in terms of any of oxidative safety, immunological safety, micronutrient concentration, or bioavailability. e.g. millet and goiter, wheat and every metabolic and immunological disease known to man, etc. getting excited about diazotrophic bioengineering in the cereals industry 
16:35 < jrayhawk> makes approximately as much sense as getting excited about as diazotrophic genetic engineering in the opium industry.
16:38  * L29Ah eats oats because they're cheap and biochemically satisfying enough
16:39 < L29Ah> also very shelf stable and lacks biological hazards
16:40 < L29Ah> doubt there's any opioid dependence involved since it's meh unlike, say, sugar- or caffeine-containing foodstuffs
16:49 < hprmbridge> yashgaroth> I thought casein fragments were the opioid receptor agonists
16:49 < jrayhawk> those, too
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17:04 < jrayhawk> https://www.mdpi.com/1422-0067/21/22/8825 in case yashgaroth reads logs
17:11 < jrayhawk> zioudrou found some suspicious activity from avenin back in 1979 but i don't think anyone ever followed up on that
17:12 < jrayhawk> unfortunately scihub has become unusable so i can't see if that's changed in the past few years since i last checked
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17:28 < hprmbridge> alonzoc> I suggest using libgen instead then, it's defenitely the cleanest and has a selection beyond academic articles
17:42 < jrayhawk> oh, that is working better, thanks
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20:21 < hprmbridge> Eli> I swear ive seen people working on gluten free cereals
20:45 < jrayhawk> even aside from human's complete inexpression of prolase, you still have unstable linoleic acid, fructans, phytate-bound inorganic minerals, and about a dozen other bioavilability issues.
20:47 < jrayhawk> Government agencies know they're pathologically useless, so they attempt to "fix" them by reinforcing with incredibly bad ideas like folic acid and iron oxide.
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21:16 < hprmbridge> Eli> Why is folic acid bad?
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22:09 < jrayhawk> It's a barely metabolizable unstable analogue of methotrexate rather than a naturally occuring one we have proper enzymatic infrastructure for.
22:09 < jrayhawk> s/one/tetrahydrofolate/
--- Log closed Wed Jul 26 00:00:10 2023