technology

How Bluetooth works — from frequency hopping and BLE to pairing, profiles, security, and comparisons with WiFi, Zigbee, and Thread.

How digital camera sensors turn photons into pixels: photodiodes, Bayer filters, CCD vs CMOS, pixel size, noise, dynamic range, and computational photography.

EVs vs gas cars in 2026: range, cost, emissions, charging, maintenance, battery life, and cold-weather performance compared head-to-head.

How a CPU works: the fetch-decode-execute cycle, pipelines, cache, cores, x86 vs ARM vs RISC-V, Moore's Law, and why Apple Silicon changed laptops.

China has 1.09 billion internet users — the largest national online population on Earth. India is close behind at 920 million, with the fastest growth. The US (315M), Indonesia (220M), and Brazil (190M) round out the top 5. By 2026, 5.5 billion people — 67% of humanity — are online. Here's the full ranking and what it means.

Six years of dated AI milestones, from GPT-3 and AlphaFold 2 to reasoning models and agents, with what each one changed and where it fell short.

AI is not disrupting all industries equally. Healthcare, law, and finance are being transformed at the root; others face slower, surface-level change.

Claude Opus 4.6 held the top position across all three LMSYS Chatbot Arena leaderboards simultaneously in early 2026. GPT-5 leads on math. Gemini 3.1 Pro leads on multimodal tasks. No single model dominates everything. Here is a systematic breakdown of how the frontier models actually compare — benchmark scores, real-world strengths, pricing, and which to choose for each task.

ChatGPT has 500 million monthly users, but it is far from the only massively-used AI app. Here is who the real winners are.

AI is not just eliminating jobs — it is creating entirely new career categories. Here are the roles growing fastest and paying the most.

You no longer need to pay for powerful AI. Here are the best genuinely free AI tools in 2026, ranked by what they can actually do.

The US dominates AI startup formation, but the UK, Israel, and India are building ecosystems that rival Silicon Valley in specific niches.