“We must understand that time is a finite resource, and thinking about leverage makes an engineer focus on what matters most”

How to be an effective engineer: https://amp.gs/jGVmU

Let’s Discuss the Lorentz Transforms

Part 1. Einstein’s 1905 Derivation: https://amp.gs/jG9Ud

Part 2. The Equation of the Sphere, or Is It? https://amp.gs/jG9Ur

Elliptic curves and ECDSA: everything to know to sign a transaction in Bitcoin from scratch

This is the complete crash course on the Elliptic Curves Cryptography used in Bitcoin and other blockchains. With code samples and a live demo from scratch: https://amp.gs/jGSxF

“By turning my typewriter into a computer, I was able to recreate the experience of using a teletype. Now I know what it was like to use Unix in the 1960s when it was originally being developed!”

Turning a typewriter into a Linux terminal: https://amp.gs/jGNuQ

Millions of users daily use features that facilitate their work with web services. The companies implement them to make their websites easy to use and safe.

Good examples of those are OAuth 2 and OpenID Connect because they allow them to reach it: https://amp.gs/jGius

LC ladder component values can have different values for the same transfer function. Published tables have only one set. Why?

About LC ladders: https://amp.gs/jGiLL

How to Create a Half Circle Progress Bar

Good thing is that in Flutter it’s pretty easy to create custom views and they will look awesome, but sometimes you just need to remember all these things that you have learned in geometric, and math classes: https://amp.gs/jGuxD

Synchronous Request-Response using REST and Apache Kafka

At first glance making REST and Apache Kafka compatible seems quite a challenge. However Innotech team nailed the task. Kirill Voronkin, Lead Developer at Innotech, shared the details on transforming unsynchronized queries into synchronized: https://amp.gs/jGuvb

How Yandex Made Their Biggest Improvement in the Search Engine with the Help of Toloka

Toloka is a crowdsourcing platform and microtasking project launched by Yandex to quickly markup large amounts of data. But how can such a simple concept play a crucial role in improving the work of neural networks? Let’s find out: https://amp.gs/jG3Ol

Q3 2022 DDoS attacks and BGP incidents

With the end of the 2022' third quarter, we invite you to take a tour into DDoS attacks mitigation and BGP incidents statistics recorded from July to September: https://amp.gs/jGFIV

“In the previous articles, we have covered query execution stages, statistics, sequential and index scan, and two of the three join methods: nested loop and hash join.

This last article of the series will cover the merge algorithm and sorting. I will also demonstrate how the three join methods compare against each other”

Queries in PostgreSQL. Sort and merge: https://amp.gs/jGFaU

“In this article, I will break down all the secrets of quantum computers piece by piece: what superposition and entanglement are, whether they can replace classical computers and whether they can crack RSA”

Quantum Computers Without Math and Philosophy: https://amp.gs/jGXIY

PostgreSQL 16: Part 1 or CommitFest 2022-07

August was a special month in PostgreSQL release cycle as the first CommitFest for the 16th PostgreSQL release was held. Let’s compile the server and check out the cool new stuff: https://amp.gs/jGLVd

.NET: Couple words about using MemoryCache

In this post, we’ll find out how to use MemoryCache and track lifetime of entities in .NET applications: https://amp.gs/jGMGb

Queries in PostgreSQL. Nested Loop

This article will remind you what logical join types are out there, and then discuss one of three physical join methods, the Nested loop join: https://amp.gs/jGMP4

Apple next year is planning to enter a new product category, launching its first mixed reality headset.

Rumors indicate that the upcoming headset will support both AR and VR technology, and that it will have features that will outshine competing products: https://amp.gs/jGc45

I trained a neural network on my drawings and give the model for free (and teach you to create your own)

Great for seamless patterns, abstract drawings, and watercolor-styled images. How to use it and train a neural network on your own pictures: https://amp.gs/jGcOn

“In this article, I will tell you how we defeated the Stale Element Reference Exception while developing our framework using Selenium WebDriver and C#”

How to handle Stale Element Reference Exception in E2E testing of modern SPA applications: https://amp.gs/jGcso

PostgreSQL 16: Part 2 or CommitFest 2022-09

It’s official! PostgreSQL 15 is out, and the community is abuzz discussing all the new features of the fresh release: https://amp.gs/jG6cn

Understanding the Differences Between Kafka and RabbitMQ: in Simple Terms

Pavel Malygin, Lead System Analyst at Innotech, dives into the topic of message brokers and explains how they are used: https://amp.gs/jGbtk

«Hi everyone! My name is Dmitrii Konstantinov and this is a personal story of experience and growth in a cozy startup»

Startup story — how to pivot mobile apps and business from «beauty Uber» to «beauty coworking»: https://amp.gs/jxI9Q