Seamus Blackley Profile picture
Jun 12, 2021 8 tweets 4 min read Read on X
I want to tell you a couple things about one of my most cherished things, a tool so useful and powerful that I honesty have come to look at it as a friend. Weird? Maybe. Read on:
At its simplest description, it’s a book of solutions to nasty sums and integrals. It has pages and pages of seemingly obscure and sometimes really daunting stuff. But that’s just scratching the surface…
In today’s world of symbolic tools and easy access to solutions all over the place is this even relevant? I’d argue it’s more relevant than ever. Because aside from its mind-boggling completeness, you get to see all the stuff you’re NOT looking for, all around, and sometimes…
…and maybe more often than not, it’s the thing you notice while you’re looking around that turns out to be what you needed. Or maybe you see something thy will save your bacon later. You see, when reading G&R you’re LEARNING and EXPLORING. Your mind works. It’s FUN.
And when we are playing, and being creative, is when we discover new things. When we create value. Herein lies the genius of this great tome. But all is not play and happiness…
If you look, this work of incredible persistence is actually the product of tragedy. Ryzhik died in WWII while working on it. Gradshtyen died while finishing Rhyshik’s work. Finally in the fourth edition some closure was reached. This gift was literally the work of lifetimes.
Me and many others owe a lot to these guys and their work and sacrifice. It’s a homey place for me, in these pages, and hell they even number things correctly!
OK that’s enough. If you have a chance to get a copy, do. I have never even been able to find a photo of G or R, but I want to shout my love and thanks to them out into the void. Perhaps at the end of a crazy, obscure integral, at whatever infinity they occupy, they can hear me.

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More from @SeamusBlackley

Aug 25, 2023
For those of you with little enough meaningful entertainment in your lives who have as a result followed our nerd efforts to make chocolate from dirt air and water, big update: we harvested the first cacao pod from Tree #1 and…


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…we will ferment, dry and roast the cacao nibs. Then, we will make chocolate!

Here, because we had only one mature pod, and because practice makes perfect, I’m adding the seeds from our homegrown pod to a bunch of others so we have good fermentation mass.


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Background on this (for those so in need of distraction that fermenting beans is a thrill):
Read 18 tweets
Aug 13, 2023
We have been raising Cacao Theobroma (chocolate) trees in our lab (next to the water jet-it’s humid) for a few years. We learned to pollinate them, and they made pods! Now we need to learn how to ferment, dry, roast, shell, mill, and temper chocolate. If that sounds fun, read on!


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First, I know a lot of people know a lot about all this, so I want to say: this project isn’t about pretentious choco-bullshit.

I’m not trying to be snotty. I wanted to see if I could start with a seed in dirt and end up with chocolate! That’s it! And learning has been fun! Image
We had to learn a LOT. It’s nontrivial to grow Cacao indoors, and we ended up basically simulating equatorial conditions. Soil, nutrition, light.

Also, the (biting) insect that pollenates Cacao in nature is NOT PRESENT in our lab. So we learned to do it with q-tips and tweezers. Image
Read 39 tweets
Dec 25, 2022
Mushy peas for Christmas Eve: Image
Ready for chips. Recipe is on top left, in F because America. Image
Read 4 tweets
Dec 18, 2022
Chimayó Chile, water, salt, garlic, fat.
After one hour.
Chicken (dark) in fat, rubbed with cumin, adobo, and more Chimayó red.
Read 7 tweets
Dec 4, 2022
Starving for a decent bit of cod, and frustrated by the poor quality of Los Angeles area chip shops, area man just fucking gets it done.
Atlantic cod is available in LA, as is English beer so the filet was sorted and essentially proper. American potatoes however are… lesser. For this application at least. Food nerds know this but I couldn’t help myself. These chips are therefore only about 40% proper.
Nota Bene: if you’re someone who hasn’t had proper fish and chips from a grimy shop in a cheesy seaside town in England, please don’t tell me how a restaurant in California has “the best fish and chips.” Thank you.

Also, you’re missing out MASSIVELY!
Read 4 tweets
Oct 2, 2022
WILD YEAST COLLECTION 日本 EDITION
It is a GLORIOUS autumn day here in Shinjuku, in the center of Tokyo. The Tokyo government buildings are here, aside the stunningly beautiful Shinjuku Chuo park.

The fragrance of late summer hangs in the air- perfect time and place for nerds like me to collect some wild yeasts!
First step is to gather the appropriate supplies- including some nice local whole wheat flour. Next we need to pasteurize the flour so that we collect a clean sample. Here I use the kettle as an autoclave, and it works nicely. You need 160F maximum; I used a COVID IR thermometer.
Read 20 tweets

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