--- Log opened Sat May 14 00:00:15 2022
--- Day changed Sat May 14 2022
00:00 < muurkha> it's not a danger to you, but it can easily be a danger to your CMOS
00:00 < muurkha> but yeah also higher voltages are going to add noise to anything they can capacitively couple to
00:14 < nmz787> well, idk, 100V AC-like (i.e. if the electrowetting grid is toggling stuff) it seems high enough to be of concern
00:14 < nmz787> """For the peak voltages to be equal, the dc voltage used in a dielectric withstand test must be 1.414 times the ac rms voltage used"""
00:15 < nmz787> so 100V AC-like DC is actually closer to dielectric breakdown strength of straight DC at 141.4 V
00:22 < nmz787> https://max.materials.drexel.edu/research-areas/max-phases/
00:22 < nmz787> .title
00:22 < saxo> MAX Phases & Bulk Layered Solids | Layered Solids Group (LSG)
00:23 < nmz787> "Why MAX Phases?"    """As a consequence of their layered structure, these materials kink and delaminate during deformation and also exhibit an unusual, and sometimes unique, combination of properties; they are not sure whether they want to be metals or ceramics. While they conduct heat and electricity like metals, they are elastically stiff, strong, brittle, and heat-tolerant like ceramics. They are 
00:23 < nmz787> resistant to chemical attack, readily machinable, and thermal shock, damage tolerant, and sometimes fatigue, creep, and oxidation resistant."""
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00:31 < nmz787> .wik max phase
00:31 < saxo> Article not found: https://en.wikipedia.org/wiki/Max_phase gave 404 | Searched en for 'max phase' | https://en.wikipedia.org/wiki/No_result_found gave 404 | Searched en for 'No result found'
00:31 < nmz787> .wik maxphase
00:31 < saxo> Article not found: https://en.wikipedia.org/wiki/Maxphase gave 404 | Searched en for 'maxphase' | https://en.wikipedia.org/wiki/No_result_found gave 404 | Searched en for 'No result found'
00:31 < nmz787> .wik maxphases
00:31 < saxo> Article not found: https://en.wikipedia.org/wiki/Maxphases gave 404 | Searched en for 'maxphases' | https://en.wikipedia.org/wiki/No_result_found gave 404 | Searched en for 'No result found'
00:31 < nmz787> .wik max phases
00:31 < saxo> Article not found: https://en.wikipedia.org/wiki/Max_phases gave 404 | Searched en for 'max phases' | https://en.wikipedia.org/wiki/No_result_found gave 404 | Searched en for 'No result found'
00:31 < nmz787> .wik MAX_phases
00:31 < saxo> "The MAX phases are layered, hexagonal carbides and nitrides which have the general formula: Mn+1AXn, (MAX) where n = 1 to 3, and M is an early transition metal, A is an A-group (mostly IIIA and IVA, or groups 13 and 14) element and X is either carbon and/or nitrogen." - https://en.wikipedia.org/wiki/MAX_phases
00:32 < nmz787> .wik MXenes
00:32 < saxo> "In materials science, MXenes are a class of two-dimensional inorganic compounds. These materials consist of a-few-atoms-thick layers of transition metal carbides, nitrides, or carbonitrides." - https://en.wikipedia.org/wiki/MXenes
00:33 < nmz787> "Further studies on Ti3C2 MXene revealed potential of MXenes as a novel ceramic photothermal agent used for cancer therapy."
00:33 < nmz787> .wik photothermal
00:33 < saxo> "Photothermal therapy (PTT) refers to efforts to use electromagnetic radiation (most often in infrared wavelengths) for the treatment of various medical conditions, including cancer." - https://en.wikipedia.org/wiki/Photothermal
00:35 < nmz787> """Applications        MXenes, as conductive layered materials with tunable surface terminations, have been shown to be promising for energy storage applications (Li-ion batteries, supercapacitors, and energy storage components),[60][61] composites, photocatalysis,[62] water purification,[63] gas sensors,[64][65] transparent conducting electrodes,[40] neural electrodes,[58] as a metamaterial,[66] 
00:35 < nmz787> SERS substrate,[67] photonic diode,[68] electrochromic device,[41] and triboelectric nanogenerator (TENGs),[69] to name a few. """
00:39 < muurkha> you can definitely kill a person with 100V, or for that matter 50V
00:40 < muurkha> but if you're designing a power supply for electrowetting there's no need to design it to be able to supply the 100+ milliamps necessary to kill or burn you
00:41 < muurkha> maybe it needs to be able to drive a 100-pF load at 10kHz, say (or 1 Hz if we're talking about human-size water droplets)
00:42 < muurkha> that's 600 microamps, you won't even feel that
00:43 < muurkha> if you oversize your driver circuitry by orders of magnitude it will still work but it will be a lot larger, less efficient, and more expensive
00:43 < muurkha> and if you don't, it isn't dangerous
00:44 < muurkha> to you!  it can still kill delicate CMOS in an amazingly devious collection of ways
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00:49 < muurkha> I guess I should add the disclaimer that my experience with power electronics other than classroom exercises is mostly confined to everyday household appliance things, but I feel like I have a pretty good appreciation for what it's like to receive mains-voltage shocks under different conditions ;)
00:52 < nmz787> yeah, you have a point I think
00:52 < nmz787> but 100V is definitely territory for field generation and EM leakage and capacitive coupling to your arduino, etc
00:53 < nmz787> letting the magic smoke out accidentally
00:53 < muurkha> yeah, that's what I meant about the delicate CMOS
00:53 < nmz787> yeah
00:54 < muurkha> Ben Krasnow described his experiences with getting his AGC replica electroluminescent display working as very frustrating because of just those issues
00:54 < muurkha> in his Applied Science video on the topic
00:55 < muurkha> he got some nice high-voltage driver chips to handle the high-voltage side of things
00:55 < muurkha> and they kept blowing up
00:55 < muurkha> because of some capacitive coupling thing I forget
00:56 < muurkha> but also you have considerations like creepage
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08:25 < kanzure> .wik distributed garbling
08:25 < saxo> Article not found: https://en.wikipedia.org/wiki/Distributed_garbling gave 404 | Searched en for 'distributed garbling' | https://en.wikipedia.org/wiki/No_result_found gave 404 | Searched en for 'No result found'
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11:18 < fenn> muurkha: re nerve cell regeneration. my informal experiments/experience with lion's mane mushroom revealed that neurogenesis may have rather personal-identity modifying effects. you might wake up to new sensibilities, tastes, and mannerisms and wonder if you're really the same person
11:19 < fenn> specifically, i used to be very into minimalism and techy stuff from an aesthetic perspective, but then i basically turned into a middle aged woman, super into renee lalique and floral prints
11:21 < fenn> you can sorta see the transition in 2016 https://fennetic.tumblr.com/archive
11:21 < fenn> i think i have managed to integrate the new growth
11:36 < fenn> do the T-cells "leak into the nervous systems and other organs" because of epithelial junction gaps? (e.g. blood brain barrier)
11:37 < fenn> maybe killing T-cells is just a band-aid
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13:00 < kanzure> what a poor misuse of the name https://en.wikipedia.org/wiki/Algorithmic_Justice_League
13:09 < muurkha> fenn: what, just from eating lion's mane?
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13:10 < muurkha> presumably the idea of extending human lifespan isn't just for your rate of personal growth to asymptotically approach zero
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13:31 < muurkha> https://backreaction.blogspot.com/2022/05/can-we-make-black-hole-and-if-we-could.html Hossenfelder on the kugelblitz question
13:37 < muurkha> mostly focused on the black hole analogues used in black hole lasers, which are new to me
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13:46 < muurkha> .t https://arxiv.org/abs/0908.1803
13:46 < saxo> [0908.1803] Are Black Hole Starships Possible
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18:31 < fenn> yes just lion's mane. it was some sort of extract from swanson vitamins. i don't remember what other interventions i was doing at the time, but it's likely that was pretty much it
18:32 < fenn> i finally got around to posting that stuff in 2016, i think it was in 2014
18:36 < fenn> but like, in the past i would have probably just thrown all those woven baskets and wooden carvings and sumptuous rough kimono cloth into the garbage
18:36 < fenn> and now i'm a gustav klimt fan or something
18:36 < fenn> hideous awful stuff
18:37 < fenn> https://en.wikipedia.org/wiki/Gustav_Klimt
18:37 < fenn> anyway i can see the appeal, whereas before it was just alien
18:37 < fenn> couch cushions and bad perfume
18:40 < muurkha> oh, you weren't just cooking up the mushrooms?
18:42 < fenn> no, that would have been more expensive, inconvenient, and not standardized
18:42 < fenn> these were gelatin capsules filled with powder
18:42 < fenn> "Full Spectrum Lion's Mane Mushroom"
18:43 < fenn> ok so it was just ground up dried mushroom i guess
18:43 < muurkha> really?  I mean people just eat that stuff
18:43 < muurkha> like, not capsule quantities.  main dish quantities
18:43 < fenn> uh huh
18:43 < fenn> are they insane and going through mid-life crises?
18:44 < muurkha> probably some of them but not most
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--- Log closed Sun May 15 00:00:23 2022