AdS black holes refer to black holes that are solutions to Einstein's equations in a spacetime with anti-de Sitter (AdS) symmetry. Anti-de Sitter space is a five-dimensional (or higher) spacetime that has a constant negative curvature, which can be visualized as a hyperbolic geometry. This spacetime is a key feature of certain theories in theoretical physics, particularly in the context of string theory and holographic duality.

Protesters were posting large chunks of text multiple times into the blockchain as a way to protest against the controversial increase of block size.

tx 08893442680a20c4d0548dec2c8c421fa43336528b4e274dbf2652774f9c9f2d has the first copy of:which is the first line of a parody on:from the Baby Got Back hip-hop song.

tx 52159222289cd0a5afe0644150d0e23d5d272a57365627d5e869fdb458289858 has the first copy of:which is likely a copy of an email from the bitcoin development mailing list. This message is repeated dozens of times in other transactions.

Bayesian networks, also known as belief networks or Bayes nets, are a type of graphical model that represent a set of variables and their conditional dependencies using a directed acyclic graph (DAG). In a Bayesian network: 1. **Nodes** represent random variables, which can be discrete or continuous. 2. **Directed Edges** indicate causal relationships or dependencies between the variables. An edge from node A to node B suggests that A has some influence on B.

A subtractor is a digital circuit that performs subtraction on binary numbers. It is commonly used in arithmetic logic units (ALUs) and various computing applications. The simplest form of a subtractor is a **half subtractor**, which takes two input bits and produces a difference and a borrow output. A more complex version is the **full subtractor**, which handles borrowing from previous bits, allowing it to subtract multi-bit binary numbers.

Mental calculation refers to the process of performing arithmetic calculations in one’s mind without the use of external tools such as calculators, pen, or paper. It involves using cognitive abilities to manipulate numbers, solve problems, and derive answers based on mental arithmetic techniques. Key aspects of mental calculation include: 1. **Speed**: Mental calculations aim to achieve quick results, allowing individuals to solve problems efficiently. 2. **Accuracy**: While speed is important, maintaining accuracy in calculations is crucial to ensure reliable results.

tx 210000d1392bec2505d1289e5c39c2039204ff1ecf7eef55f973ccd3111003e1, block 360235 (2015-06-10) and the following transactions have transcripts of a very long developer chat starting with:

TODO purpose? The transcripts are interspersed with developers likely voting for project leadership, and commenting on Gavin.

TODO find original discussion location, these are almost certainly from one of the Bitcoin IRC channels.

Part of the goal of this dump is that the Bitcoin developers have a policy of not allowing logging on their talk channel, and this released it all to the blockchain forever where it cannot be deleted. These might just be more of protests against larger block sizes.

Continuous optimization refers to the process of finding the best solution (maximum or minimum) of an objective function that is defined over continuous variables. This contrasts with discrete optimization, where variables can only take on discrete values (such as integers). In continuous optimization, the decision variables can take on any value within a defined range. ### Key Concepts in Continuous Optimization: 1. **Objective Function**: This is the function that needs to be maximized or minimized. It describes the goal of the optimization problem.

Leon Glass is a notable figure in the field of neuroscience, particularly known for his contributions to the understanding of neuronal dynamics and the mechanisms of brain function. He has been influential in the study of how neural circuits operate, especially in relation to rhythm generation and the synchronization of networks of neurons.

In the context of mechanical systems, structural dynamics, or control theory, a **damping matrix** is a mathematical representation that describes the damping characteristics of a system. Damping refers to the effect that dissipates energy (often in the form of heat) from vibrating systems, and it is critical for controlling oscillations and improving stability.

ENO methods, or Essentially Non-Oscillatory methods, are a class of numerical techniques used primarily for the solution of hyperbolic partial differential equations (PDEs). They are particularly valuable for problems where shock waves or discontinuities are present, as they help prevent artificial oscillations that can occur in traditional numerical methods.

"Numbers" can refer to several different concepts depending on the context. Here are a few possible interpretations: 1. **Mathematical Concept**: In mathematics, numbers are symbols used to represent quantities and are fundamental to counting, measuring, and performing various calculations. They include various types such as natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.

Topological dynamics is a branch of mathematics that studies the behavior of dynamical systems through the lens of topology. It focuses on how systems evolve over time while considering the global structure of the space in which they reside. The central objects of study in topological dynamics are often continuous functions on topological spaces that model the evolution of a system.

The Ainu creation myth is part of the indigenous Ainu culture of Japan, particularly associated with the northern regions such as Hokkaido. The Ainu have a rich oral tradition, and their mythological stories illustrate their understanding of the world, nature, and their relationship with the divine. In Ainu creation myths, the world is often described as being formed from the sea. One notable myth starts with the god of the sea, who created the first land.

Starting tx a87d406fae047258a12923b3c11a797a5765bd8f868df5c7e9b1cead0e92c9c1: the message:appears about 13 thousand times. WTF happened?

Rickrolling lyrics were mined several times into the blockchain.

The first currently known instance is as a link right during the prayer wars on block 142573 (2011-08-25) as the miner message:which redirects to www.youtube.com/watch?v=mGDuExhS6Nw&blockchain

Around block block 246k (e.g. 27b7c526489dac8245747fa1c425a2e3eb07dea57b294eb4ae583fec9b859fcf, 2013-10-17) we note several transactions starting with a XML format <CG SZ="1156"><MG>... the first one being 0b4efe49ea1454020c4d51a163a93f726a20cd75ad50bb9ed0f4623c141a8008 As mentioned not very clearly at www.righto.com/2014/02/ascii-bernanke-wikileaks-photographs.html#ref12 the content of the first <MG><payload></MG> is a Base64 encoded stringfollowed by lyrics also base64 encoded as part of the XML metadata. Hidden surprises in the Bitcoin blockchain by Ken Shirriff (2014) was not able to identify the exact format either. At twitter.com/EMBII4U/status/1655831533750562816 EMBII mentions that this was part of an upload test.

tx d29c9c0e8e4d2a9790922af73f0b8d51f0bd4bb19940d9cf910ead8fbe85bc9b (2013-11-13) contains a plaintext Rickroll lyric in an output script via OP_RETURN.

tx 15b11e8d4e5b9425f024b381ba0cb7a54a35e52389bb4855f505772ce685b39c (2014-06-24): starting from this transaction, the lyrics were inscribed several times via input scripts. Then again:They were mega obnoxious!!! Who does this kind of crap for more than one year!!!

Polycystin 1 (PC1) is a large, multi-domain protein that is primarily associated with the function of renal epithelial cells and plays a crucial role in kidney development and function. It is encoded by the PKD1 gene, and mutations in this gene are associated with autosomal dominant polycystic kidney disease (ADPKD), a condition characterized by the formation of fluid-filled cysts in the kidneys, leading to renal dysfunction.

Polydeuces is one of the moons of Saturn. It is a small moon, with a diameter of about 1.4 kilometers (0.87 miles), and is notable for its irregular shape and surface features. Polydeuces orbits Saturn between the rings and is part of a group of moons known as the "shepherd moons," which help maintain the structure of the planet's rings by their gravitational influence.

Air conditioning is a technology that is used to control the temperature, humidity, and air quality in indoor spaces. It involves the process of removing heat and moisture from an enclosed area to create a more comfortable environment. The primary components of an air conditioning system typically include: 1. **Compressor**: This device compresses refrigerant gas, raising its pressure and temperature.

Maria Pia Fanti is a notable figure in the field of robotics and engineering, particularly recognized for her work in soft robotics, human-robot interaction, and robotic systems. She is involved in research that aims to create robots that can safely and effectively interact with humans and adapt to their environments. Her work often emphasizes the integration of mechanical design, control theory, and artificial intelligence to develop innovative robotic solutions.