Technology

How Wi-Fi Actually Works: The Physics of Wireless Signals

Wi-Fi is not magic. It is radio. Understanding the physics — frequencies, antennas, OFDMA, the difference between signal strength and throughput — explains why your 300 Mbps plan delivers 80 Mbps and what to do about it.

17 April 2026

8 entries

Latest signals

Technology

The Best Laptops for Programmers in 2026: M4 MacBook Pro vs Framework vs ThinkPad X1

Three laptops define the serious developer market in 2026, and they could not be more different in their philosophy. The MacBook Pro M4 Max, the Framework Laptop 16, and the ThinkPad X1 Carbon Gen 13 each win, decisively, for a different kind of programmer.

Technology

iPhone 18 Leaks: Everything Apple Is Planning for September 2026

For the first time since the iPhone X, Apple is splitting its launch year. The foldable iPhone Air arrived in spring. The iPhone 18 base lineup ships in September, and the leaks point to the most aggressive hardware refresh in five years.

Technology

Why Your Smartphone Battery Degrades and What You Can Actually Do About It

Every time you charge your phone, you are slowly wearing it out. That is not a design flaw or a conspiracy — it is electrochemistry. But understanding the science means you can slow the damage considerably.

Technology

The Internet's Hidden Architecture: How Data Actually Travels Around the World

You press Enter and a webpage loads in 200 milliseconds. In that interval, your data has travelled through a fibre-optic cable under the Atlantic Ocean, been routed through a dozen autonomous systems, and been reassembled from dozens of separate packets. Here is the full story.

Technology

How GPS Works: The Remarkable Science Behind Your Phone Knowing Where You Are

Twenty-four satellites, atomic clocks accurate to a billionth of a second, and a signal that travels 20,000 kilometres from space to your pocket. The engineering behind GPS is one of the great unsung marvels of the modern world.

Technology

What is Quantum Computing and Why Scientists Say It Will Change Everything

A quantum computer is not a faster classical computer. It is a fundamentally different kind of machine — one that exploits the strangeness of physics to solve problems that would take ordinary computers longer than the age of the universe.

Technology

How Large Language Models Work: The Science Behind Modern AI Chatbots

They predict the next word billions of times. That humble description conceals one of the most consequential technologies ever built. Here is what is actually happening inside ChatGPT, Claude, and Gemini.