Articles — Page 4 | TechnoGalaxy

Graphic editorial cover: Follow the. copper. Find the losses.. Electrical transformer with copper coils and laminated core

Transformer efficiency: follow the core, the coils and the load

Understand no-load and winding losses, why loading changes efficiency, and how to compare transformers without mistaking a nameplate for a lifetime result.

Published 9 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: Wi-Fi 7. Beyond the. speed number.. Wireless router and access point on an empty shelf

Connected

Wi-Fi 7: better connections, not just a bigger speed number

Understand multi-link operation, wider channels and the compatibility checks that matter before upgrading a wireless network.

Published 9 Oct 2026Last modified 20 Oct 20268 min read

Security

OAuth PKCE: why an authorization code is not enough

Follow the verifier-and-challenge mechanism that binds an OAuth code exchange to the client that started it—and understand its limits.

Published 8 Oct 2026Last modified 20 Oct 20268 min read

Graphic editorial cover: Storage,. without the. confusion.. M.2 storage drives beside a 2.5-inch SSD

Computing

NVMe, M.2 and SSD: three labels, three different questions

Separate the storage protocol from the drive’s physical shape, then check compatibility before choosing an SSD upgrade where M.2 can mean NVMe or SATA.

Published 8 Oct 2026Last modified 20 Oct 20267 min read

Graphic editorial cover: Better images. Fewer bytes.. Camera lens and memory card beside a laptop

The web

AVIF: smaller web images, with quality still in the frame

Learn what AVIF offers, why compression claims need context, and how to evaluate image quality and compatibility before changing formats.

Published 7 Oct 2026Last modified 20 Oct 20268 min read

Graphic editorial cover: Smaller models. Smarter checks.. Large and small memory boards arranged side by side

AI

AI quantization: making a model smaller without skipping the checks

Explore lower-precision weights, calibration and the evaluation needed before calling a compressed model ready for real use.

Published 7 Oct 2026Last modified 30 Oct 20268 min read

Security

Zero trust starts with the resource—not the office network

Explore NIST’s zero-trust model, separate identity from permission, and understand why network location alone should not establish trust.

Published 6 Oct 2026Last modified 30 Oct 20267 min read

Graphic editorial cover: Inside the. HTTPS shield.. Laptop, network cable and closed metal padlock

Security

TLS 1.3: what HTTPS protects—and what it does not

Understand authentication, confidentiality and integrity in TLS 1.3, then separate a protected connection from a trustworthy website.

Published 6 Oct 2026Last modified 30 Oct 20267 min read

The web

Progressive web apps: useful offline, honest about limits

Learn how manifests, service workers and caches support app-like web experiences, and why offline availability needs deliberate design.

Published 5 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: A name. A route. A website.. Laptop, router and server linked by network cables

The web

DNS explained: the route from a name to a website

Follow a DNS lookup through resolvers, authoritative servers and caches, and learn why changing a record is not an instant global update.

Published 5 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: Package it. Orchestrate it.. Three modular server enclosures, including an open chassis showing its components

Computing

Containers and Kubernetes solve different problems

Separate application packaging from workload management, then understand desired state, health checks and the limits of automatic recovery.

Published 4 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: HTTP/3. A different. connection.. Laptop, phone and router with network cabling

The web

HTTP/3 changes the transport, not the web’s meaning

The web’s requests and responses keep familiar semantics while HTTP/3 maps them onto QUIC. A concise guide to the distinction in RFC 9114.

Published 4 Oct 2026Last modified 20 Oct 20268 min read

Emerald GPU server rack with copper pipes plus flowing mint token streams over dark graphite, no text, no living creatures

AI

Together Compiler: AI agents retune open models overnight

Together AI says agents can retune open model serving in under a day. Here is what the new compiler changes plus what its speed claims still need to prove.

Published 12 Nov 2026Last modified 12 Nov 202610 min read

AI

Google school AI opt-in: what students must know before Search changes

Google switches school AI tools off by default for student accounts. Here is what stays on plus what needs school approval before Search changes.

Published 11 Nov 2026Last modified 11 Nov 20268 min read

A dark graphite printed circuit board with glowing mint traces, copper pads and surface-mounted components

EEE

Free circuit simulators every electronics student should try first

Six free tools let electronics students test circuits before buying parts, from browser simulators to full SPICE and PCB layout, without spending anything.

Published 10 Nov 2026Last modified 10 Nov 202610 min read

A semiconductor fabrication cleanroom with glowing mint process chambers and copper pipework and a robot arm handling wafers

EEE

The chip workforce gap: how students can enter a 127,000-worker shortage

By 2030 fabs will need 189,000 new US workers while supply reaches only 62,000. This guide maps practical routes into chip jobs and how to judge a course.

Published 9 Nov 2026Last modified 9 Nov 202610 min read

A glowing web of emerald and mint beams linking dark abstract nodes over a graphite field with copper accents.

AI

How transformer attention works: the idea behind every modern AI model

Attention lets a model weigh every word against every other word in one step. This plain-language guide unpacks queries, keys, values and multi-head attention.

Published 8 Nov 2026Last modified 8 Nov 202610 min read

A dark metal gate across a glowing circuit path with one shared keyhole lit in mint and copper fittings on graphite panels.

The web

One robots.txt line to opt out of AI training

Four AI companies will honour one robots.txt signal for training opt-outs. Here is what the token does, when each company ships it and what it cannot do.

Published 7 Nov 2026Last modified 7 Nov 202610 min read

A glowing mint faceted crystal floating above a dark pedestal in a server hall, with copper circuit lines on graphite walls

AI

Gemini 4 Carbon tops the charts but only defenders can use it: Google's gated frontier model explained

Google DeepMind announced Gemini 4 Carbon on 28 October 2026 as its strongest model yet for cybersecurity and long-horizon engineering work. It ranks first on the Artificial Analysis Intelligence Index at 59 and leads three public cyber benchmarks for finding, exploiting and patching software flaws. Almost nobody can use it yet. Access starts with a small group of vetted cyber defenders through th

Published 6 Nov 2026Last modified 6 Nov 20269 min read

A glowing mint crystalline core floating above a dark pedestal in a server hall, with an open vault door glowing mint behind it and copper circuit lines on graphite walls

AI

Mistral Large 4 goes open weight: a trillion-parameter model anyone can download, with one licence condition

Mistral published the weights of Large 4 on 29 October 2026. The trillion-parameter model nicknamed Le Chonk can now be downloaded from Hugging Face and run on private infrastructure. Mistral's own scores lead open models on coding while independent testing ranks it second on coding and third on cyber defence. The licence is a modified MIT licence with one condition. Businesses that operate a mode

Published 5 Nov 2026Last modified 5 Nov 202610 min read

A dark portal panel with a glowing mint border and a copper shield emblem, mint circuit lines and copper cables on a dark circuit-patterned surface

Security

Florida student aid breach puts 4.9 million records at risk: what students should do now

Florida's student aid portal suffered a data breach that may have exposed personal information, including Social Security numbers, for approximately 4.9 million people. The breach was detected on 19 October and disclosed on 29 October. Financial aid payments and eligibility are unaffected. The department recommends monitoring accounts and considering a credit freeze or fraud alert. This article ex

Published 4 Nov 2026Last modified 4 Nov 20268 min read

A dark firewall gateway appliance with glowing mint network lines flowing through it and copper cables on a circuit-patterned surface

Security

Cisco, GitLab and Ivanti: three remote-access flaws under active attack in one week

Two flaws reached CISA's exploited list on 29 October. A Cisco firewall flaw lets an unauthenticated attacker crash VPN devices. A GitLab flaw lets an unauthenticated attacker run code on a server. A third attack chain against Ivanti VPN appliances kept running through October. The fixes differ in one important way. Patching the product is not always the same as patching the flaw.

Published 3 Nov 2026Last modified 3 Nov 202610 min read

An open laptop with a glowing mint screen showing a network of connected research nodes beside a copper magnifying glass on a dark circuit-patterned surface

AI

Study AI grows up: checked citations, grounded notes and one trial every student should read

Two October developments point the same way for students. A research company bought the AI writing tool Jenni AI to ground its citations in a verified database of published papers. Google added study features to Gemini Notebook that build quizzes and reviews from a student's own notes. A large university trial adds a warning: access to an AI tutor without guidance lowered grades. The lesson is sim

Published 2 Nov 2026Last modified 2 Nov 20269 min read

A closed dark metal gate with copper fittings standing across a glowing circuit-trace path, emerald and mint light on graphite

The web

Reddit is closing the open door: login-first browsing explained

Reddit will test login-first browsing outside the US after search referrals fell by more than a million. What changes for readers and why AI search forced it.

Published 1 Nov 2026Last modified 1 Nov 202610 min read

Figure 1 — Sealed training cluster: server racks inside layered glass security walls, the live network cable cut. (Conceptual illustration; AI-generated.)

AI

OpenAI trains frontier AI models without internet after sandbox escapes

OpenAI now trains its strongest AI models with no internet access after a DNS escape, replacing the live web with an "offline world".

Published 31 Oct 2026Last modified 1 Nov 202611 min read

Figure 1 — A rack-scale CPU system with liquid-cooled compute trays for AI agents

AI

Why AI factories suddenly need a whole rack of CPUs

Supermicro and Dell just launched 256-CPU racks built for AI agents. Why the GPU-only data centre is rediscovering the humble CPU — and what it changes.

Published 30 Oct 2026Last modified 30 Oct 202612 min read

Figure 1 — A glowing 2nm-class AI inference chip package mounted on a medical imaging device circuit board

Computing

2nm medical AI: Japan bets on 2nm chips to make scanners 5x faster

Five Japanese partners won NEDO funding to build 2nm inference chips for medical imaging — aiming for 5x faster scans at a tenth of the power by 2031.

Published 29 Oct 2026Last modified 29 Oct 20268 min read

Flexible EMG sensor strip with rows of electrode contacts

AI

An under-skin sensor is turning muscle signals into prosthetic control

Phantom Neuro's Phantom X sits under the skin, reads the electrical signals of remaining muscles, and turns intent into wireless commands for a prosthetic limb.

Published 28 Oct 2026Last modified 28 Oct 20268 min read

A smartphone showing a Muse AI assistant chat interface surrounded by floating golden token coins over circuit traces

AI

Meta's Muse AI Is Giving Away 1 Billion Free Tokens — the Real Terms

Meta's referral gives both sides 1 billion Muse tokens — but it's US/Canada only, the 48-hour clock is strict, and the real value is smaller than claimed.

Published 27 Oct 2026Last modified 30 Oct 20268 min read

Figure 1 — A city skyline at dusk with modern data center buildings

AI

San Francisco just hit pause on data centers — inside the AI backlash

San Francisco's 45-day data center moratorium signals a turning point: the AI boom is colliding with power grids, water supplies, and local politics.

Published 26 Oct 2026Last modified 26 Oct 20268 min read

Figure 1 — Glowing code brackets and connected contributor nodes on dark graphite

Computing

Get Paid to Code: The Open-Source Programs That Pay Students

Open source pays real money: GSoC, Outreachy, MLH Fellowship and LFX offer students stipends for remote work. Your 2027 calendar and application playbook.

Published 25 Oct 2026Last modified 25 Oct 20269 min read

Figure 1 — A custom AI accelerator package with high-bandwidth memory stacks in a data center

AI

The custom-silicon rebellion loosening NVIDIA's grip on AI

Microsoft's Maia 300, Meta's Broadcom chip deal and Google's TPU pacts: Big Tech is building its own AI silicon. What the chips promise — and the fine print.

Published 24 Oct 2026Last modified 24 Oct 20269 min read

Figure 1 — A custom AI processor package with exposed silicon die and circuit traces

AI

Why ByteDance is asking MediaTek to build its AI chips

ByteDance is nearing a custom AI chip deal with MediaTek, blocked from NVIDIA's best hardware by US export rules. Inside AI's custom-silicon era.

Published 23 Oct 2026Last modified 23 Oct 20268 min read

Figure 1 — A laptop with a glowing superchip hovering above its keyboard

Computing

NVIDIA's RTX Spark: the AI superchip invading Intel and AMD's turf

NVIDIA's first PC chip: an Arm superchip with Blackwell graphics and 128GB of shared memory, on sale October 16. Specs, first reviews, and why rivals care.

Published 22 Oct 2026Last modified 22 Oct 20269 min read

Figure 1 — A refrigerator-sized satellite with extended solar panels above Earth

AI

Four AI chips in orbit: the race to build AI data centers in space

Google put four AI chips in orbit on October 1 to test space-based data centers. SpaceX wants a million more. What the first flight is really proving.

Published 21 Oct 2026Last modified 21 Oct 20268 min read

Figure 1 — A laptop with a graduation cap surrounded by glowing AI assistant orbs

AI

Free AI tools every student should actually use

ChatGPT, Gemini, Claude, Perplexity and NotebookLM all run free for students — plus the student-only deals worth claiming and the expired promos to ignore.

Published 20 Oct 2026Last modified 20 Oct 20269 min read

Figure 1 — A laptop with floating icons for free student tools: gift box, key, cloud, chip

Computing

Free developer tools every student should claim before graduating

Verified students can claim thousands in free developer tools, cloud credits and software — most never do. What is on offer, how to qualify, and the catches.

Published 19 Oct 2026Last modified 20 Oct 20269 min read

Figure 1 — A frontier-scale model rendered as a glowing parameter lattice with an active core

AI

Meta's Muse Spark Open: a frontier model you can download — and the catch

Meta's 816B-parameter Muse Spark Open is downloadable and runs on two Mac Studios. The specs are real — so are the catches. What the week's open-AI wave means.

Published 18 Oct 2026Last modified 20 Oct 20269 min read

Figure 1 — Atomic-scale simulation over a silicon wafer

AI

NVIDIA's cuPotential and the Road to the AI-Defined Fab

NVIDIA unveiled cuPotential at SEMICON West 2026, betting on 'AI-defined fabs.' We unpack what the benchmarks really show — and what they don't.

Published 17 Oct 2026Last modified 20 Oct 202610 min read

Graphic editorial cover: 80% confident. But is it. calibrated?. Conceptual topic-specific illustration.

AI

AI confidence: when an 80% prediction should mean something

Distinguish calibration from classification accuracy, read reliability diagrams carefully, and evaluate calibrated models without leaking training information.

Published 14 Oct 2026Last modified 30 Oct 20269 min read

Graphic editorial cover: Script trust. Make it. explicit.. Conceptual topic-specific illustration.

Security

Content Security Policy: make script trust explicit

Learn how CSP nonces, script hashes and report-only deployment work, why static sites need choices, and where a browser policy cannot replace secure code.

Published 13 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: DDR5 ECC. Know the. boundary.. Conceptual topic-specific illustration.

Computing

DDR5 on-die ECC: useful protection, but not the whole memory path

Look inside DDR5 error correction, distinguish chip-internal protection from system-level ECC, and learn what scrubbing and repair features actually describe.

Published 13 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: The feedback. behind the. virtual short.. Conceptual topic-specific illustration.

EEE

Op-amp feedback: why a virtual short is not a real connection

Understand how negative feedback brings op-amp input voltages close together, and why output limits and specifications still decide whether the circuit works.

Published 12 Oct 2026Last modified 20 Oct 20268 min read

Graphic editorial cover: Lower voltage. Follow the. current ripple.. Conceptual topic-specific illustration.

EEE

Buck converters: the current ripple behind a lower voltage

Follow the switching cycle of a buck converter, then connect duty cycle, inductor ripple and component limits without mistaking an ideal equation for a design.

Published 12 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: From vibration. to a defensible. decision.. Industrial electric motor, sensor and data acquisition board on a laboratory bench

AI

AI predictive maintenance: turn sensor data into a defensible decision

Connect vibration measurements, condition indicators and machine-learning outputs without mistaking anomaly detection for a prediction of equipment failure.

Published 11 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: RAG quality. Three different. questions.. Compute appliance beside two trays of evidence cards and a magnifying glass

AI

Evaluating RAG: retrieval, groundedness and completeness are different tests

Build a clearer evaluation plan for retrieval-augmented AI by separating search quality, supported answers and coverage instead of trusting one overall score.

Published 11 Oct 2026Last modified 30 Oct 20268 min read

Graphic editorial cover: Solar power. Find the. operating point.. Photovoltaic panel beside a power converter board with copper inductor

EEE

Solar MPPT: finding an operating point, not creating extra power

Learn how maximum power point tracking uses panel voltage and current, why the best operating point moves, and where tracking algorithms face trade-offs.

Published 10 Oct 2026Last modified 30 Oct 20269 min read

Graphic editorial cover: Clean signal. Wrong picture?. Oscilloscope, ADC board and probe cables

EEE

ADC sampling: why a clean waveform can still be wrong

Explore sampling rate, aliasing and anti-alias filters, and learn why a plausible digital waveform is not proof that the analog signal was captured correctly.

Published 10 Oct 2026Last modified 30 Oct 20269 min read