Technology
The Hidden Physical Cost of Artificial Intelligence
Behind an instant answer sit chips, electricity, heat and water. The useful numbers need careful boundaries.
Technology
How technology changes what we can do and how we live.
Technology
Who Really Controls the Internet?
The internet has no single owner. Its operation depends on agreements among networks, standards bodies, companies and states.
Technology
How memory catches a bit that has gone wrong
Error-correcting memory stores a little extra information so a computer can spot and sometimes repair a corrupted value.
Technology
Why identical-looking USB-C cables can do very different jobs
The familiar oval plug hides differences in wiring, power ratings and supported signals.
Technology
How a password manager protects secrets it cannot read
The service can store and sync an encrypted vault while the means to unlock it stays with you.
Technology
Why an update can slow an older device
Temporary background work, tighter resources and the effect of an ageing battery
Technology
What Should a Modern Door Intercom Actually Do?
The most useful innovation may be an entrance that everyone can use and trust
Technology
Can Britain's Electricity Grid Keep Up with Going Electric?
The challenge is building the right wires, connections and flexibility in the right places
Technology
How recommendation algorithms guess what you will click next
A feed is a running prediction built from behaviour, context and the platform's chosen goals.
Technology
Is Super Unleaded Worth the Extra Cost?
What 95 and 98 RON really measure—and why the right answer depends on the engine
Technology
Are Electric Cars More Likely to Catch Fire?
Fire frequency and the difficulty of fighting a battery fire are two different questions
Technology
What Is Virtual Reality Good For Beyond Gaming?
From astronaut training to rehabilitation, the strongest uses let people practise what the real world makes difficult
Technology
Why does a modern car need so many computers?
Small controllers manage safety, efficiency and comfort in a machine that must react in real time.
Technology
What actually happens when a website loads?
A page appears in seconds because the browser performs a chain of network and rendering jobs.
Technology
Why do rechargeable batteries lose capacity?
Charging reverses the main reaction, but it cannot undo every chemical and physical change inside a cell.
Technology
Why QWERTY still rules the keyboard
The typewriter mechanism that gave us these keys is long gone. The habits, hardware and shared expectations built around them are harder to retire.
Technology
Why Can Wi-Fi Be Slow When the Signal Looks Strong?
The bars tell you about a radio link, not the whole journey to a working website.
Technology
How Compression Shrinks Music and Video Files
Codecs save space by finding repetition, describing change efficiently and sometimes discarding detail we are less likely to notice.
Technology
How Can GPS Find a Phone So Precisely?
Your phone listens for exquisitely timed signals, then solves for its place in space.
Technology
How do noise-cancelling headphones cancel sound?
They do not erase noise from the world. They add a carefully timed sound of their own so less noise reaches your eardrum.
Technology
Why Do Old Computer Games Sometimes Feel More Responsive?
Input lag is a chain of delays, and old hardware often had fewer steps between a button press and a visible response.
Technology
What actually happens when you delete a file?
The icon may vanish at once, but deletion can mean moving a file, removing its name, reclaiming storage or making its contents genuinely inaccessible.
Technology
Why Does the Same Photograph Look Different on Different Screens?
A digital image stores colour instructions, but each display must translate them into real light.
Technology
How Does a QR Code Survive Being Damaged?
The little squares carry data, position clues and deliberate redundancy.