Acquisition | Chris Aldrich

Acquired Category Theory for the Sciences by David I. Spivak

Acquired Category Theory for the Sciences by David I. Spivak (The MIT Press, 1st Edition)

An introduction to category theory as a rigorous, flexible, and coherent modeling language that can be used across the sciences.

Category theory was invented in the 1940s to unify and synthesize different areas in mathematics, and it has proven remarkably successful in enabling powerful communication between disparate fields and subfields within mathematics. This book shows that category theory can be useful outside of mathematics as a rigorous, flexible, and coherent modeling language throughout the sciences. Information is inherently dynamic; the same ideas can be organized and reorganized in countless ways, and the ability to translate between such organizational structures is becoming increasingly important in the sciences. Category theory offers a unifying framework for information modeling that can facilitate the translation of knowledge between disciplines.

Written in an engaging and straightforward style, and assuming little background in mathematics, the book is rigorous but accessible to non-mathematicians. Using databases as an entry to category theory, it begins with sets and functions, then introduces the reader to notions that are fundamental in mathematics: monoids, groups, orders, and graphs―categories in disguise. After explaining the “big three” concepts of category theory―categories, functors, and natural transformations―the book covers other topics, including limits, colimits, functor categories, sheaves, monads, and operads. The book explains category theory by examples and exercises rather than focusing on theorems and proofs. It includes more than 300 exercises, with solutions.

Category Theory for the Sciences is intended to create a bridge between the vast array of mathematical concepts used by mathematicians and the models and frameworks of such scientific disciplines as computation, neuroscience, and physics.

Ordered a copy from Amazon

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Acquired In the Footsteps of King David: Revelations from an Ancient Biblical City by Yosef Garfinkel, Saar Ganor, Michael G. Hasel

Acquired In the Footsteps of King David: Revelations from an Ancient Biblical City by Yosef Garfinkel, Saar Ganor, Michael G. Hasel (Thames & Hudson; 1 edition)

The remarkable excavation of a previously unidentified city in Israel from the time of King David, shedding new light on the link between the bible and history

King David is a pivotal figure in the Bible, which tells his life story in detail and gives stirring accounts of his deeds, including the slaying of the Philistine giant Goliath and the founding of his capital in Jerusalem. But no certain archaeological finds from the period of his reign or of the kingdom he ruled over have ever been uncovered―until now.

In this groundbreaking account, the excavators of Khirbet Qeiyafa in the Valley of Elah, where the Bible says David fought Goliath, reveal how seven years of exhaustive investigation have uncovered a city dating to the time of David― the late eleventh and early tenth century BCE―surrounded by massive fortifications with impressive gates and a clear urban plan, as well as an abundance of finds that tell us much about the inhabitants. Discussing the link between the Bible, archaeology, and history In the Footsteps of King David explains the significance of these discoveries and how they shed new light on David’s kingdom. The topic is at the center of a controversy that has raged for decades, but these findings successfully challenge scholars disputing the historicity of the Bible and the chronology of the events recounted in it.

90+ illustrations

Purchased for $26.79 at Distant Land’s 30% discount/going out of business sale.

Spoils from a cow party

A few months back, I got roped into joining in on a co-op purchase of a whole cow that was estimated to come in at around 600 pounds. It was grass fed, organically raised, and was to be humanely butchered, packaged, and frozen. I made an initial $200 deposit, and this morning I paid the $290.50 balance at what was billed as a “Cow Party”.

Thirteen of the “partners” got together at 11:30am to draw lots to form a line to take turns choosing individual cuts from the cow. Though it was just one entire cow, the butcher threw in some additional tongues, testicles, and other additional offal for us to select from as well.

Here’s what was included in my 18 turns:
1.2 lb New York steak, bone in
1.0 lb New York steak, bone in
1.2 New York steak, bone in
1.4 lb Ribeye, bone in
0.5 lb top sirloin steak
0.5 lb top sirloin steak
2.4 lb bottom round roast
2.5 lb beef tritip large
0.4 lb top sirloin steak
1.9 lb beef short ribs
1.1 lb stew beef
1.1 lb stew beef
1.1 lb stew beef
1.2 lb beef cheek
1.4 lb beef oxtails
0.9 lb beef oxtails
1.4 lb beef testicles
1.3 lb beef fat

Everyone also went home with an additional box of ground beef. Mine contained 16 packages of 1lb each of ground meat as well as 2.2lbs of beef ground with heart and 0.9lbs of beef ground with liver.

This comes out to 41.6 pounds of meat in all and price of roughly $11.78 per pound.

Sadly I missed out on some nice shoulder cuts, some tongue, and I had tried to get some tripe instead of the testicles, but alas, there were apparently other menudo fans in our group.

My freezer is chock full of some serious meat for a while. Most of the cuts are fairly straightforward and I’ve already got a good idea of what I’m going to do with them. I will have to take a peek at what I ought to do for the Rocky Mountain Oysters. I’m leaning toward turning them into some delicious tacos, but I’ll take any suggestions from those who’ve done other variations before.

I do want to make an inventory of the price per pound for individual cuts versus typical markets to see how the pricing works out, as I suspect that some likely did better than others within the “lottery” system this set up. The tough part will be finding local markets that purvey this high a quality of meat for a reasonable comparison.

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Acquired Stamped from the Beginning: The Definitive History of Racist Ideas in America by Ibram X. Kendi (Nation Books)

Some Americans cling desperately to the myth that we are living in a post-racial society, that the election of the first Black president spelled the doom of racism. In fact, racist thought is alive and well in America--more sophisticated and more insidious than ever. And as award-winning historian Ibram X. Kendi argues in Stamped from the Beginning, if we have any hope of grappling with this stark reality, we must first understand how racist ideas were developed, disseminated, and enshrined in American society.

In this deeply researched and fast-moving narrative, Kendi chronicles the entire story of anti-Black racist ideas and their staggering power over the course of American history. Stamped from the Beginning uses the life stories of five major American intellectuals to offer a window into the contentious debates between assimilationists and segregationists and between racists and antiracists. From Puritan minister Cotton Mather to Thomas Jefferson, from fiery abolitionist William Lloyd Garrison to brilliant scholar W.E.B. Du Bois to legendary anti-prison activist Angela Davis, Kendi shows how and why some of our leading proslavery and pro-civil rights thinkers have challenged or helped cement racist ideas in America.

Contrary to popular conceptions, racist ideas did not arise from ignorance or hatred. Instead, they were devised and honed by some of the most brilliant minds of each era. These intellectuals used their brilliance to justify and rationalize deeply entrenched discriminatory policies and the nation's racial disparities in everything from wealth to health. And while racist ideas are easily produced and easily consumed, they can also be discredited. In shedding much-needed light on the murky history of racist ideas, Stamped from the Beginning offers us the tools we need to expose them--and in the process, gives us reason to hope.

Ordered on 9/20/2018 after bookmarking
Arrived 9/22/2018

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