BC SCIENCE
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I think I've permanently confused KiCAD
it's reminding me that I need to connect this capacitor to Nothing

 attach this end to ground, this end to +5v, and this end to THE VOID
I accidentally made all the capacitors gigantic and they won't fit anymore

halp
gonna design an ISA card using some of these

it's gonna be tricky to fit in the case
that's from this video:
https://t.co/FyMofzOFEX
those kicad motherfuckers
they have an ISA footprint but it doesn't show up when you search for "ISA" because they called it BUS_AT despite it being clearly called "ISA" since THE LATE 80s
and even worse, it's actually the AT bus

The full AT bus, the 16bit extension to the 8bit PC/XT bus!
but surely they included the PC/XT bus as well, since it's just a minor variation of the AT bus, right? You'd just need to make the same design but slightly smaller?
1. no, because
2. fuck you
gotta do it myself like some kind of caveman
ok, finally I can update the ratsnest and fix my board and OH GOD WHAT HAPPENED
apparently I have now fixed the issue of connecting to the void at the expense of every single item on the board deciding to roll scatter dice
I thought I'd quickly google "what size are ISA mounting bracket holes?" and it quickly led me to JOGGLE TABS by GOMPF BRACKETS and I think I wandered into the part of the internet that's generated by markov chains
FUCKING SHIP IT
hang on I'm doing an update of all my symbols & footprints & 3d models.
this will fix and/or cause all my problems
does all software have to constantly gaslight me?
look at this.
it's the wrong 3D library, as that's just the footprint not the socket. I don't even know if here's a socket, so I'd like to look.
See the 3D model path? it's in Package_LCC.3dshapes
so I hit BROWSE and scroll to package_...

there's no LCC
there's no LCC and yet it apparently is working?
even though it doesn't exist?
HOW? WHY?
(my guess is that either it's being cached and doesn't exist anymore (or has been moved), or it's aliased from somewhere else, or autogenerated from the footprint, or any number of things)
but the end user experience is that it makes you think you're going fucking insane
amusingly if I google for "PLCC-68_THT-Socket.wrl" there's two results:
1. the source for kicad which points at this non-existent file
2. @TubeTimeUS's PlaidBib project which points at "Housings_LCC.3dshapes/PLCC-68_THT-Socket.wrl", which is a slightly different path!
which also doesn't exist.
so I'm guessing the answer is that there is no WRL file for this part and this is just a placeholder for in case anyone ever makes one, and it's instead just getting autogenerated from the footprint
computers are one of those fun subjects where the more you learn about them, the more you hate them
oh no

updating the libraries brought back the void
https://t.co/Sunhq9SZuH
FINE
YOU WANT ME TO CONNECT TO THE VOID?
I'LL DO IT. BUT I'LL DO IT RIGHT.
THERE.
We've got out power connectors.
5 volts
ground
and the fucking VOID
pins 11, 10, 9, and 7?

connect them to the void.
mmm, tasty.
https://t.co/6pHY6xZkCZ
fun fact: I couldn't remember how I'd phrased that one and searching "the void" didn't find it, so I had to google "the void drinks machine" and it found a couple reddit posts that screenshotted the tweet and cropped off my name, so I then could search for "diet coke" and find it
less fun fact: that shitpost is probably the most popular thing I ever ever done, and it's all because of people reposting the screenshot without credit!
I seriously only opened up this PCB editor so I could do a shitpost followup to something I said last night and now it's 2 hours later and I'm mostly done setting up a 4-drive floppy controller
why
people like to complain about ADHD keeping you from getting anything done, or only letting you concentrate on "pointless" things like games and TV shows, and that's definitely a big part of it
but the other side is that sometimes you CAN CONCENTRATE and you can do it VERY WELL and FOR A LONG TIME but you have zero ability to control what you're concentrating on
I wanted to wake up and make a quick joke on twitter and then go get some coffee and start the day and NOPE
TWO HOURS LATER I'M DESIGNING A FLOPPY DISK CONTROLLER
JLCPCB here I come
OK I know that one won't work. There's too many overlapping parts.

I fixed it now. This'll work.
I did this one manually but I have seriously considered writing a plugin for kicad that goes through every part and picks a random orientation out of 360 degrees and applies it
and by "manually" I mean I clicked each part and adjusted the properties.
Obviously I let a computer generate the randomness, I'm not a barbarian.
this may be a tad hard to route, though
I'm pretty sure if I pointed an autorouter at this my computer would collapse into a black hole
especially since I have all these pads I need to connect to THE VOID
done routing the ground.
I decided not to use a ground plane fill. it's too easy.
I'm just gonna do point-to-point traces for all the ground points
I may need more than 2 layers
hey what if I just give every major component their own layer?
kicad only supports up to 32 layers, but that should be enough

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foone
foone
@Foone
argh chrome updated and it seems they've intentionally broken custom search engines. I have had a keyword search for "foone" which searches my own twitter, so I just type "foone BLAH" and it gives me a twitter search for when I said BLAH, right?


but now I get that option in the titlebar of "search twitter self-search" which is the name of the search"
if I just type "foone blah" now...

it ignores the search I have had defined for years and just googles it.


and this is definitely on purpose because they didn't just break it, they changed it. it's now "fooneblah"


there doesn't seem to be an option to make this stop and get the old behavior back :(
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foone
foone
@Foone
So Sony has this format called Optical Disc Archive, right? It's a high-density storage cartridge, but it turns out it works by cheating.


because if you open it up (which you should never do. trust me on this one)
it turns out... it's blu-ray.


it's a big STACK of blu-ray


And the idea is that Sony built some very complicated drive which you can slot this cartridge into, and it'll open it up and grab out the right disc and just read/write that one

then when you hit the eject button, it shoves the discs back in and closes up the case, and hands you the cartridge.
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foone
foone
@Foone
Something that I didn't realize but hurt my brain to learn:
John Norman (aka John Frederick Lange Jr.), of the Gor series of sci-fi/BDSM novels, is still alive.
He released two books (one of them a Gor book, #35), in 2019.


I guess with the fact that the series started in 1966 and feels like it's always a historical thing... I assumed he had to have quit writing and/or died back in like 1986.

Nope. Still alive, he's 89, and was apparently still writing as of 2 years ago.

also, my brain being what it is, I totally just googled for the book's cover image by entering "trans man of gor" which is NOT the title.

in my defense, how many book serieses look like this WITH THE SAMEAUTHOR FROM BOOK #1 to BOOK #35?


Anyway if you look at any this and think it's a suggestion that you should try reading any of these novels or learning anything about them, you are quite mistaken.

Gor is bad sci-fi and bad BDSM, and you should skip it for either reason.
CULTURE
foone
foone
@Foone
So I was in the shower this morning, and started wondering:
Do you think the people implicated in Jeffrey Epstein's book had a general "Dead men tell no tales" slush fund?
Or did they have to separately organize his assignation?

I'm just imagining that on August 10th there's a big traffic jam of hired killers all running into each other like


some guy's sneaking out of a vent when a guard walks in, sees him, and goes "HALT!" and the vent guy goes "SHIT!", then notices the guard's ill-fitting suit. "Wait, ...Steve? Is that you?"

"Alex! I haven't seen you since the Reno heist! What are you doing here?"
"Same thing as you, looks like."

"I'll be damned. Well, I've already knocked out the guard, you want to let me finish this?"
"Yeah, go ahead. I'll get paid either way."
CULTURE
foone
foone
@Foone
does bubble memory count as solid state?
I guess? I mean, it has no moving parts. but it requires preheating and involves movement of magnetic fields across a surface...

it's kinda like a traditional hard drive where you don't spin the disc, you just trick all the bits to migrate off the edge

who called it "bubble memory" and not "lemming bits"

(obligatory "lemmings don't throw themselves off cliffs, that's an urban legend")

(obligatory "the idea that disney invented that urban legend it itself an urban legend, they just helped popularize it")
TECH

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1. I find it remarkable that some medics and scientists aren’t raising their voices to make children as safe as possible. The comment about children being less infectious than adults is unsupported by evidence.


2. @c_drosten has talked about this extensively and @dgurdasani1 and @DrZoeHyde have repeatedly pointed out flaws in the studies which have purported to show this. Now for the other assertion: children are very rarely ill with COVID19.

3. Children seem to suffer less with acute illness, but we have no idea of the long-term impact of infection. We do know #LongCovid affects some children. @LongCovidKids now speaks for 1,500 children struggling with a wide range of long-term symptoms.

4. 1,500 children whose parents found a small campaign group. How many more are out there? We don’t know. ONS data suggests there might be many, but the issue hasn’t been studied sufficiently well or long enough for a definitive answer.

5. Some people have talked about #COVID19 being this generation’s Polio. According to US CDC, Polio resulted in inapparent infection in more than 99% of people. Severe disease occurred in a tiny fraction of those infected. Source:
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Here is another very enjoyable conversation, with @Pandata19’s scientific advisory board member, Dr Jay Bhattacharya. Key ideas in this thread.

We are making world-changing decisions on the basis of evidence that is not very good. Vast scientific evidence tells us that infection fatality rates are much lower than originally expected. A small fraction of people get severe illness. 2/10

The scientific community has been resistant to evidence not supporting the majoritarian view, preferring instead to gin up panic, focusing on the worst case for everything the virus does & the best case for everything lockdowns do, and ignoring the range of uncertainty. 3/10

Academe is a strange place now, with debate stifled. But there's a sense some are opening up to considering opposing views. This is key, since suppression of views stops knowledge from progressing—the end of science. Public health norms of unified messaging complicate this. 4/10

Why did we, from the start, assume we knew nothing about this virus, instead of assuming a reasonable prior? Low susceptibility was evident early on. Assuming any virus is new is hard to square with our deep-time co-evolution with viruses, & their slow evolution. 5/10
SCIENCE
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Yardley Yeadon
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@MichaelYeadon3
In a number of Sunday papers:
Scientific advisers said it was “hard to see” when the restrictions would end as new variants continued to emerge, delivering a potentially devastating blow to the travel industry. The prime minister said that after progress with vaccinations...

...”what we don’t want to see is all that work undone by the arrival of a new variant that is vaccine-busting”.
The idea is planted in people’s mind that this virus is mutating in such a way as to evade prior immunity. This is completely unfounded, certainly as regards immunity..

...gained naturally, after repelling the virus (which well around 99.9% of the population do, fewer, obviously in the very elderly & already ill, more in those younger & well). It’s important to appreciate that upon infection, the human immune system cuts up an infectious...

...agent into short pieces. Each of these short pieces of protein are presented to other cells in the immune system, like an identity parade. Our cells have a truly astonishing range of abilities to recognise different protein structures, and there will be some which recognise...

...each of the pieces of the invader. The cells which recognise a piece are instructed to multiply selectively so that, after a few days to a couple of weeks, our bodies contain large numbers of virus piece specific cells. These have a range of functions. Some make antibodies...
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Lior Pachter
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@lpachter
"The new answer to a 77-year-old problem"

😭


https://t.co/hm9NoaU4nr


https://t.co/8fKDiKjSWc


https://t.co/jkaicC1F2x


https://t.co/PpxWT4Jef4
SCIENCE
Smit Patel
Smit Patel
@snazzysmit
Super excited to share my very first lead-author paper in @ScienceAdvances

Supported by @HIRN_CC @NIDDKgov @UFBME @UFWertheim @ufdiabetes @UMCoEDean
Lead by @Cherie_Stabler & @ashu83

link: https://t.co/FbqVWQ0n5p

This is a thread 👇

Highlights:
⚪️A Lab-on-a-Chip platform for organoids w/ wide capabilities: long-term culture | controlled & dynamic perifusion | in situ spatio-temporal imaging | serial cell assessment | ease of sample retrieval


⚪️Continuous fluidic flow increased local oxygen supply to islets in hydrogels & reduced cellular hypoxia
⚪️Flow increased cellular viability & reduced apoptosis & cell death

⚪️Human islets in hydrogels were highly functional during the 10 day in situ culture in our chips, while islet function was rapidly lost under static conditions
⚪️Glucolipotoxicity study showed a treatment window as small as 2.5 hours can elevate cell death

What are organoids? – A miniaturized version of an organ that imitate an aspect of human interface. They are commonly developed from stem cells in a lab. Human body also produces organoids naturally particularly within the pancreas.
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"I really want to break into Product Management"

make products.

"If only someone would tell me how I can get a startup to notice me."

Make Products.

"I guess it's impossible and I'll never break into the industry."

MAKE PRODUCTS.

Courtesy of @edbrisson's wonderful thread on breaking into comics – https://t.co/TgNblNSCBj – here is why the same applies to Product Management, too.


There is no better way of learning the craft of product, or proving your potential to employers, than just doing it.

You do not need anybody's permission. We don't have diplomas, nor doctorates. We can barely agree on a single standard of what a Product Manager is supposed to do.

But – there is at least one blindingly obvious industry consensus – a Product Manager makes Products.

And they don't need to be kept at the exact right temperature, given endless resource, or carefully protected in order to do this.

They find their own way.
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THREAD: The following tweets are for the purposes of stories that will appear in Sunday Times Daily. The videos and images depicted may be upsetting but are deemed to be in the public interest. This is the story of the Ayanda "Borhey" Mtila as far as we were able to verify it.


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@ChenHuailun here. I'm adding a supplementary thread before today's scheduled one to expand on the origins and early history of the Church of the East (aka the Nestorian Church) ~ahc #jingjiao 1/


The Church of the East traces its origins to the christological position of the School of Antioch, which held that the human and divine and human essences (ουσία) of Christ were united in a single prosopon (πρόσωπον). ~ahc #jingjiao 2/


This ran against the position of the School of Alexandria, which held that the two essences of Christ were united in a single hypostasis (ὑπόστασις). In general terms, hypostasis is more inherent than prosopon. ~ahc #jingjiao 3/


One implication of the Antiochene rejection of the hypostatic union is that Mary could not accurately be called the Theotokos, or God-bearer. Instead, she is the Christotokos, the Christ-bearer. ~ahc #jingjiao 4/


These Christological debates were further complicated by Syriac terms such as 'kyana' (ܟܝܢܐ), associated with 'ousia' but later translated to 'hypostasis' by Syrian Orthodox; and 'qnoma ' (ܩܢܘܡܐ), sometimes contentiously translated as 'hypostasis' or 'person.' ~ahc #jingjiao 5/
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\u09a8\u09bf\u09ac\u09c7\u09a6\u09bf\u09a4\u09be
নিবেদিতা...
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Remembering the Bengali scientist Dr Subhash Mukhopadhyay- the Pioneer of IVF in India, the creator of India's first and world's second child using IVF on his birth anniversary. The Father of IVF in India who was rewarded with suicide was born on 16.01.1931in Hazaribagh.
#Thread


Dr. Subhash was the son of a doctor and studied at the National Medical College in Kolkata after completing his schooling. Fascinated by innovations in gynaecological surgery from his early days as a medical student, he completed his PhD in reproductive physiology +


from the University of Calcutta before going to the Edinburgh University in UK for a PhD in reproductive endocrinology. On his return to India in 1978, he started researching ovulation and spermatogenesis. Soon after, he teamed up with Sunit Mukherji, a cryobiologist +


and Saroj Kanti Bhattacharya, a gynaecologist, to work on a method of in-vitro fertilization for a patient (Bela Agarwal) with damaged fallopian tubes. +


Mukhopadhyay with a double PhDstarted work on IVF techniques in the mid 60s and created history by becoming the first physician in India and second in the world after British physicians Robert Edwards and Patrick Steptoe) to perform the In-vitro fertilisation. +
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Techno Funda Investing
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Thread 🧵explaining #ROE & #ROCE and its use in #FundamentalAnalysis

(Must read for #FA learners)

🙏Like & RT to spread learning with all 🙏

Views Welcome 👉 @dmuthuk @Vivek_Investor @datta_arvind @caniravkaria @FI_InvestIndia @AdityaD_Shah

#FundamentalAnalysis #StockMarket


1⃣

Return on Equity (#ROE) and Return on Capital Employed (#ROCE) are two important Financial Ratios used in #FundamentalAnalysis of Stocks.

#StockMarket #Investing

2⃣

Return on Equity (ROE) is the ratio of Net Income (Net Profit) of a company and it’s Total Equity (Shareholder's Equity).

Here - Shareholders Equity = Share Capital + Reserves & Surplus.

#StockMarket #Investing #FundamentalAnalysis


3⃣

#ROE is a measure of how much net profit a company is making for every rupee invested by its shareholders in the company.

It can be said that higher the ROE, better it is for the equity shareholders. It tells shareholders about how effectively their money is being used.

4⃣

However, you should not trust high ROE blindly. Biggest drawbacks or weaknesses of ROE is that it completely ignores debt.

Hence for companies having high levels of debt, ROE will give a higher but misleading value & therefore we need to look at #ROCE along with #ROE.
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