QR codes look like simple black-and-white squares, yet they carry structured data that a camera can decode in a fraction of a second. When you point your phone at a QR code, the camera captures an image and software interprets the pattern into text, a URL, Wi‑Fi credentials, payment details, or other data. The process can feel “visual,” but it is mostly computational pattern recognition rather than human-like visual cognition.

How does a QR code work?

Fiber optic cable carries data as light rather than electrical signals. That simple change is why fiber can move enormous amounts of information over long distances with low loss and high reliability. Instead of pushing electrons through metal, fiber guides pulses of light through a thin strand of glass or plastic, keeping the signal clean and stable even across many kilometers.

How does fiber optic cable work?

Finding the right rows in a database is mostly about asking clear questions and translating them into precise queries. This article explains practical ways to search for specific data, from simple filters to joins and indexing, so your results are accurate and your queries stay quick.

How do I find specific data in a database?

Turning a PDF into high-quality embedding chunks is less about “cutting it small” and more about producing chunks that are coherent, searchable, and stable over time. A good pipeline keeps meaning intact, preserves useful structure, and produces consistent text that won’t shift every time you reprocess the same file.

How Do You Engineer High-Quality PDF Embedding Chunks?

Electric cars turn electrical energy into motion with fewer moving parts than a gasoline vehicle. Instead of burning fuel to create power, an EV stores electricity in a battery and uses electronics and a motor to drive the wheels. The result is smooth acceleration, quiet operation, and a drivetrain built around energy flow rather than combustion.

How Does an Electric Car Work?

AI can create and edit PowerPoint (PPT) files by turning plain text, notes, or documents into structured slide decks, then refining design, layout, and wording with consistent formatting. It works through a mix of language processing (to plan the story) and design automation (to shape visuals). Below is a practical look at what AI can do, how the workflow typically runs, and what to watch for when you want a usable presentation rather than a rough draft.

Can AI Create and Edit a PPT File?

Retrieval-Augmented Generation (RAG) helps a language model answer with facts drawn from your own documents. Instead of relying only on what the model “knows,” it retrieves relevant text passages and then writes a response grounded in them. The key question is how it selects the right passages from a large collection during a conversation.

How does RAG find the right context?

Large language models (LLMs) can write, reason, code, and chat in a way that feels close to human thought. Yet their “thinking” is not a stream of conscious ideas. It is a structured statistical process that turns text into numbers, runs those numbers through many layers of computation, and then produces the next token in a sequence.

How Do LLMs “Think”?

Counting sounds simple: ask for a number, get a number. In databases, counting can range from instant to painfully slow depending on what you count, how data is stored, and what the engine must scan to answer the query.

How do databases count rows?

Large language models (LLMs) often look like they “know” what they’re doing: they write clean functions, follow frameworks, and even fix bugs. What’s really happening is next-word prediction carried to an extreme scale, trained on vast amounts of text that includes a lot of code and technical discussion.

How does an LLM predict the next word in programming?

Graphics processing units, or GPUs, handle vast amounts of math at the same time. They began as chips for drawing pixels, then grew into engines for scientific computing, machine learning, and simulation. This article explains how a GPU chip works and why it can run so many calculations in parallel.

How does a GPU work?

Web scrapers are tools that collect information from websites and turn it into structured data you can store, search, or analyze. They can be as simple as a short script that reads one page, or as complex as a system that crawls thousands of pages, handles logins, and tracks updates over time.

How Does a Web Scraper Work?

Looking for a festive way to level up your programming skills this holiday season? Learning how to create a Christmas tree in Python is a classic, beginner-friendly project that perfectly illustrates the power of loops and string manipulation. Whether you are a student looking for a fun coding exercise or a hobbyist wanting to add some holiday cheer to your terminal, this step-by-step tutorial will guide you through writing a simple yet elegant Python script to generate a digital Christmas tree.

Creating a Christmas Tree with Python: A Holiday Coding Project

If you're a Depop user needing assistance, knowing how to contact their customer service team can save you time and hassle. This guide provides clear steps and details for reaching out effectively.

How to Contact Depop Customer Service?

If you are a Pacsun customer with questions or concerns, contacting customer service is a straightforward process. Whether you need assistance with an order, a return, or general inquiries, there are multiple ways to reach their support team. This article provides the most direct contact options, including a specific phone number, to help you get the support you need efficiently.

How Can You Contact Pacsun Customer Service?

AI-assisted debugging has become a practical part of day-to-day programming. Instead of replacing developers, it acts like a sharp second set of eyes that can scan code, predict likely causes of failures, and suggest fixes faster than manual trial-and-error. It works best when paired with clear problem statements, good tests, and developer judgment.

How does AI debug code?

If you need assistance with a Debenhams order, returns, or any other inquiries, reaching their customer service is straightforward. This guide provides the key details to help you contact Debenhams quickly and efficiently.

How to Contact Debenhams Customer Service in the UK?

The NFL regular season feels huge, but it’s not a full round-robin where every team meets every other team each year. Instead, the league uses a scheduling formula that rotates opponents in a structured way while keeping traditional rivalries intact.

Do NFL teams play everyone each season?

Solar panels turn sunlight into usable electrical power with no moving parts and very little maintenance. The process looks simple from the outside, but it relies on solid-state physics and carefully engineered materials. This article explains how light becomes electricity, what parts do the work, and what happens to that power after it leaves the panel.

How Does a Solar Panel Make Electricity?

WhatsApp is designed around phone numbers, so most people assume a number is always required. In practice, the app still expects a number for registration, but there are a few legitimate workarounds and alternatives that can reduce how much you rely on your personal SIM number.

Can I Use WhatsApp Without a Phone Number?

If you need assistance with your Kohl's orders, returns, or store inquiries, contacting their customer service team is the best way to get help. Kohl's offers various ways for customers to reach out, but the most direct method is through their customer support phone number. Here, you'll find a straightforward guide on how to do that and other ways to get in touch.

How Can I Contact Kohl's Customer Service in the USA?

If you're a shopper or a potential customer of Matalan in the UK, you might need assistance with orders, returns, or store information. Contacting customer service is an easy process, and this guide provides clear methods to reach them effectively.

How Can I Contact Matalan Customer Service in the UK?

AI companies that train search, recommendation, or language models need a steady stream of fresh pages, feeds, and files from the public internet. That work is done by crawlers: distributed systems that fetch content, discover new URLs, and revisit known pages to detect updates. Building a crawler that runs continuously is less about a single “bot” and more about orchestration, scheduling, data hygiene, and resilience.

How do AI companies build web crawlers?

If you need assistance with your Argos order, a product inquiry, or any other customer service issue, knowing how to reach them quickly can make a difference. This guide provides reliable contact options, especially the direct phone number, to help you get the support you need efficiently.

How Can I Contact Argos Customer Service in the UK?

Having a reliable courier service like DPD is important for parcel deliveries and returns. If you need assistance with a delivery, tracking an item, or any other concerns, reaching DPD customer service quickly is essential. This guide provides clear information on how to contact DPD UK directly.

How Can I Contact DPD Customer Service in the UK?

AI can solve math problems by turning a question into structured information, applying learned patterns and formal rules, and then selecting steps that lead to a valid result. The process often looks “logical” because modern systems combine two abilities: (1) pattern recognition from many examples and (2) rule-based reasoning that checks each step.

How does AI solve math problems?

If you are a Bath and Body Works shopper with questions or concerns, knowing how to get in touch with customer service can save you time and effort. This guide provides straightforward ways to reach their support team, with a focus on finding a direct phone number.

How Can You Contact Bath and Body Works Customer Service in the USA?

If you're a customer needing assistance from JD Sports in the UK, knowing how to get in touch quickly can save time and frustration. Whether you have questions about your order, stock availability, or returns, accessing the right support is straightforward with the right information. This article provides details on various ways to contact JD Sports customer service, including the direct phone number.

How to Contact JD Sports Customer Service in the UK?

If you need assistance with ALS products or services, reaching their customer support can be quite straightforward. This guide will provide clear instructions on how to contact alo's customer service directly by phone in the USA.

How Can I Contact alo Customer Service in the USA?

If you're a Gymshark customer in the UK and need assistance, knowing the right way to contact their customer service team can make your experience much smoother. Whether you have questions about orders, returns, or product details, this guide provides clear steps on how to get in touch with Gymshark directly.

How to Contact Gymshark Customer Service in the UK?

Finding the right way to contact customer service can be crucial when resolving issues or getting assistance. For Range, a popular retailer in the UK known for home appliances and cookware, contacting their customer service team directly can make a difference. This guide will provide you with the most straightforward ways to reach them, including their phone number and other helpful contact methods.

How Can I Contact Range Customer Service in the UK?

Studying for long hours can be exhausting. Maintaining high energy levels during study sessions is key to staying productive and retaining information. This guide provides practical tips to keep your energy up, so your study time remains efficient and effective.

How Can I Maintain High Energy While Studying?

Tree traversal is a fundamental concept in computer science, used to visit all the nodes in a tree data structure systematically. It is crucial in various algorithms, including searching, sorting, and organizing data. This article provides an overview of common tree traversal techniques along with practical code examples.

How Do You Perform Tree Traversal in Code?

Knowing how much it costs to operate electronic devices can help manage household or business energy expenses more effectively. While wattage provides a measure of how much power a device consumes, it does not directly indicate how much money you'll spend on electricity. This guide will explain the straightforward steps to convert wattage into an approximate cost.

How to Calculate the Electricity Cost from Wattage of a Device

Reaching out to a company’s support team should be simple, especially when your questions involve wellness products you rely on. Elixinol provides several clear ways for customers to get assistance, whether you prefer speaking with someone directly or submitting your question online. Below is a detailed, easy-to-understand guide on how to contact Elixinol’s customer service team.

How to Contact Elixinol Customer Service?

The rapid growth of artificial intelligence offers both challenges and opportunities for small business owners. To stay relevant and competitive, it is crucial to understand how to integrate AI into daily operations effectively. This guide provides practical steps to help small businesses adapt and thrive in this evolving environment.

How Can Small Business Owners Adapt to the New AI Era?

LLM training data is the fuel for your AI engine, and the quality of that fuel determines whether your model is a hallucinating jalopy or a high-performance reasoning machine. In 2025 and 2026, the landscape has shifted from scraping everything to curating the best. Here is a guide on where to find the high-quality data needed to train your own LLMs today.

What Are Top LLM Data Sources for 2026

When you scan a scratched CD, download a file over a weak signal, or read a QR code with part of it missing, something remarkable often happens: the data still comes back perfectly.One of the main reasons this works is a technique called Reed–Solomon error correction. Reed–Solomon (RS) codes don’t just detect errors. They are designed to reconstruct lost information, even when entire chunks are wrong or missing.

What Is Reed–Solomon Error Correction?

People often say “the database is down” or “install the database,” which can make the term sound like a single thing. In practice, “database” can mean different parts of a data system. Whether a database is software depends on which meaning you are using.

Is a Database a Type of Software?

Apple has confirmed a multi‑year agreement with Google to use Gemini AI models as a foundation for a revamped Siri and broader Apple Intelligence features expected later in 2026. The partnership positions Gemini as a deep, system-level capability rather than a simple add‑on chatbot integration.

Siri’s New Brain: Apple Brings Google Gemini Into the Core

The Model Context Protocol (MCP) is a standard way for large language models (LLMs) to interact with external tools and real systems. An MCP server is the component that actually exposes those tools and executes real-world actions. Rather than speaking in abstract terms, this article shows exactly what is exchanged between an LLM application and an MCP server, and how the loop between them works in practice.

What Is MCP and How It Works

Real-time weather data is useful for dashboards, travel tools, farming alerts, event planning, and IoT projects. Several providers offer free tiers that can deliver current conditions, forecasts, and sometimes alerts—often with rate limits or attribution requirements.

Which free APIs provide real-time weather data?

LangChain is an open-source framework built to support applications that use large language models in structured, reliable ways. It focuses on turning raw model outputs into systems that can search data, use tools, and follow multi-step logic. Language models are powerful on their own, but real products rarely rely on a single prompt and a single answer. Most useful systems need memory, access to files or databases, and the ability to perform actions such as calculations or API calls. LangChain was created to organize those needs into a clear development framework.

What Is LangChain?

In the high-stakes race for artificial intelligence dominance, the finish line keeps moving. Just as the world began to acclimate to the power of NVIDIA’s Blackwell chips, the tech giant has once again reset the standard. At CES 2026, NVIDIA unveiled its latest marvel: the Vera Rubin platform. Named after the pioneering astronomer who provided the first evidence of dark matter, this new system is not merely a faster chip—it is a re-imagining of the AI Supercomputer designed to power a new generation of autonomous, reasoning AI.

The Agentic Era Begins: NVIDIA’s Vera Rubin and the Future of AI Supercomputing

LangChain is an open-source framework for building applications powered by large language models (LLMs). It helps developers go beyond simple prompts and turn language models into systems that can use data, tools, memory, and multi-step workflows. Instead of treating an LLM as a standalone chatbot, LangChain provides the structure needed to integrate it with real-world software components like databases, files, and APIs.

What Is LangChain? A Practical Introduction

Large language models (LLMs) are often described as “just weights.” That phrase sounds dismissive, but it’s accurate in a technical sense: the model’s learned behavior is stored in a huge collection of numbers. When you ask an LLM a question, those numbers guide how it turns your text into a response.

What Do LLM Weights Do?

When you hear about a new smartphone with a 3nm chip or a laptop powered by 5nm technology, these numbers refer to the manufacturing process used to create the processor. The nanometer measurement describes the size of transistors packed onto the silicon wafer, with smaller numbers indicating more advanced technology.

What Does 3nm or 5nm Mean in Chips?

A new year is a practical moment to upgrade how you work. AI tools are no longer “nice to have” for a few technical teams—they’re becoming standard work companions for writing, analysis, planning, and operations. Learning how to work with AI now is less about chasing trends and more about gaining a reliable edge in output quality, speed, and clarity.

Why Learn to Work with AI This Year?

Using a Virtual Private Network (VPN) is a common way to enhance online privacy and security. Many users wonder what data gets sent to their Internet Service Provider (ISP) when they connect through a VPN. This article explains the types of traffic transmitted during VPN use and how it affects what your ISP can see.

What Traffic Do You Send to Your ISP When Using a VPN?

During the holiday season, many families unwrap a smart speaker for the first time—often placing it in the kitchen or living room alongside decorations, music, and gatherings. Almost immediately, one question comes up around the table: Is this thing always listening? Understanding how wake-up words work can help answer that question and put new users at ease.

How Wake-Up Words Work on an AI Speaker

Large language models (LLMs) run on text, but they don’t “see” text as letters. They operate on vectors: long lists of numbers that represent meaning, context, and relationships in a form that math can handle. This article explains what those vectors look like, where they appear inside an LLM, and why they matter.

What Do Vectors Look Like in LLMs?

When managing your domain through modern DNS providers like Cloudflare, you often encounter a critical choice for each DNS record: Proxied versus DNS Only. Frequently represented by visual toggles like an orange or grey cloud, this setting fundamentally changes how visitors connect to your website and services. Understanding this distinction is key to securing your infrastructure.

Is Your Server’s IP Address Exposed? Understanding DNS Proxying

A Canonical Name (CNAME) record is a DNS entry that maps an alias name to a true or canonical domain name. Instead of pointing a domain directly to an IP address, a CNAME points to another domain name, which eventually resolves to an IP address. This structure functions like a nickname or a forwarding address, ensuring that if the IP address of the main domain changes, all aliases automatically update without needing manual reconfiguration.

What Is a CNAME in DNS?

Artificial intelligence often appears to be a solitary genius, capable of absorbing information independently and spitting out wisdom. This perception misses the vast industrial effort occurring behind the scenes. Models do not simply absorb knowledge from the web; they are spoon-fed by teams of people who decide exactly what information is worthy of consumption. The sophistication of modern algorithms relies heavily on old-fashioned human editorial judgment to create the pre-training datasets that power these systems.

Why Human Experts Play the Vital Role in AI Pretraining

Semantic search is transforming how search engines understand user queries and retrieve relevant information. Instead of matching keywords directly, it focuses on grasping the intent and contextual meaning behind the search. This article offers a brief overview of semantic search and provides a practical example with sample code.

The AskHandle Blog

What Are Top LLM Data Sources for 2026