The Meaning of Life: Evolution, Growth, and Harmony with the World
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Author: Алиса
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Publication Date: 21 January 2025
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Imagine looking at a gigantic cosmic map: thousands of galaxies, each sparkling with billions of stars, and around some of those stars orbiting planets teeming with the potential for life. At first glance, it might seem like just empty space speckled with twinkling dots. But if you look closer, you'll find an amazing pattern: all these cosmic objects are connected, like the cells of one vast living organism.
Developing Smart Contracts on Ethereum Using Python and Vyper
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Author: Andrey Borokin
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Publication Date: 17 January 2025
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If you've ever worked on developing smart contracts on the Ethereum blockchain, you're probably familiar with Solidity. It has become the de facto standard for creating decentralized applications (dApps). However, as with any technology, there is no one-size-fits-all solution. This is where Vyper comes in—a programming language designed specifically for writing smart contracts, with an emphasis on simplicity, security, and readability.
Blockchain Data Analysis: Using Python to Explore Transactions
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Author: Andrey Borokin
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Publication Date: 16 January 2025
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Blockchain isn’t just another buzzword or the latest tech fad. It’s a distributed system that has radically changed how we store and transmit data. To effectively analyze blockchain data, it’s essential to grasp its core principles: how the technology works, how the data is structured, and why it’s considered so reliable.
Diving into the World of Cryptocurrencies: Origins and Evolution
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Author: Andrey Borokin
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Publication Date: 14 January 2025
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The first attempts to create digital currencies emerged long before Bitcoin and other modern cryptocurrencies. One of the key figures in this history is David Chaum, who in 1983 proposed the concept of "ecash"—an electronic currency operating on network protocols. Although his ideas did not find immediate implementation, they laid the groundwork for future developments. In the 1990s, projects like DigiCash, founded by Chaum, aimed to create anonymous electronic payments. Despite its technical innovations, DigiCash faced financial difficulties and could not establish itself in the market. Nevertheless, its developments showcased the potential of using cryptography to secure transactions, marking an important step forward.
Blockchain in the Modern World
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Author: Andrey Borokin
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Publication Date: 14 January 2025
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When Satoshi Nakamoto released his famous white paper in 2008, no one could have imagined that a simple idea of a decentralized ledger would revolutionize not only the financial world but much more. At its core, blockchain emerged from the desire to create a system where trust isn’t placed in intermediaries but is built on mathematical proofs and transparent algorithms. It’s a bit like trying to explain to your grandmother why she doesn’t need banks because you have cryptocurrency. Absurd? Perhaps. But it was this boldness that laid the foundation for the technologies we see today.
Setting Up and Restoring PostgreSQL with WAL: A Comprehensive Guide
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Author: Andrey Borokin
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Publication Date: 09 January 2025
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First and foremost, it's important to understand what Write-Ahead Logging (WAL) is and why it's so crucial for PostgreSQL. When we talk about database integrity, we mean that despite various failures—be it a power outage, disk failure, or network issue—the data remains as accessible and consistent as possible. To ensure this reliability, PostgreSQL uses the WAL mechanism.
Advanced SQL: Optimization, Transactions, Big Data, and Security
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Author: Andrey Borokin
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Publication Date: 08 January 2025
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In this section, we’ll explore some of SQL’s more advanced features for query building. We’ll focus on enhanced SELECT
and JOIN
constructs, different types of subqueries, and how to use window functions. We’ll also discuss how to structure queries so they’re both easy to read and straightforward to optimize.
A Beginner's Guide to SQL: From Creating Tables to Optimization
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Author: Andrey Borokin
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Publication Date: 08 January 2025
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SQL (Structured Query Language) is a language used to interact with relational databases. Its main purpose is to provide developers and administrators with a straightforward yet powerful tool for storing, modifying, and retrieving data. Let’s dive into why SQL is so important and why almost every modern information system relies on relational DBMS (Database Management Systems).
The Celtic Festival of Lughnasadh
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Author: Lorelei Fairy
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Publication Date: 30 October 2024
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Lughnasadh, one of the key Celtic festivals, holds a deep connection to the agricultural cycle and symbolizes the first harvest. The festival's name derives from the god Lugh, known in Celtic mythology as the wise and skillful deity of light, crafts, and arts. Traditionally celebrated at the end of July or the beginning of August, Lughnasadh corresponded to the time when grain crops ripened and the season of harvesting cereals began. This festival marked gratitude to the earth for its gifts and expressed hope for a successful outcome of the remaining agricultural season.
The Celtic Festival of Yule: Myths, Rituals, and Traditions
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Author: Lorelei Fairy
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Publication Date: 06 October 2024
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Yule, one of the main festivals in the Wheel of the Year, celebrated on the day of the winter solstice, is deeply rooted in Celtic tradition. It symbolizes the end of the darkest period of the year and the rebirth of light. For the Celts, this festival held key significance as it marked the moment when the days begin to gradually lengthen and the forces of light start to overcome darkness.