technology

Robots no longer just follow scripts. Modern robots use AI to perceive, plan, and adapt. Here's how they work, where they're being used, and where the technology is heading.

Solar panels turn sunlight directly into electricity using the photoelectric effect. They're now the cheapest form of new power generation in most of the world. Here's how they work and whether they pay off.

Machine learning is how computers learn patterns from data instead of being told the rules. It powers everything from email spam filters to self-driving cars. Here's how it actually works.

Some researchers think AI that outperforms humans at every task is decades away; others say years. A reasoned thought experiment on what the published evidence and expert views actually suggest.

Virtual and augmented reality have been "the next big thing" for a decade. Here's how each actually works, where they succeed, and what the realistic future looks like.

Nuclear power has the lowest death rate per kWh of any major energy source. It's also the most feared. Here's what the data actually says — beyond Chernobyl, beyond Fukushima.

Drones range from 249-gram camera quadcopters to 27-hour military aircraft. Here is how they fly, what sensors and software keep them stable, what the rules say, and what delivery and air taxis can realistically do.

A device implanted in the brain that lets paralysed patients move computer cursors with their thoughts. Here's how Neuralink and other brain-computer interfaces actually work.

Bitcoin is digital money that nobody controls. Sounds simple — but underneath is a remarkable feat of cryptography, economics, and game theory. Here's how it really works.

Every digital service you use is constantly being attacked. Cybersecurity is the layered defence keeping passwords, banking, hospitals, and infrastructure safe. Here's how it actually works.

Green hydrogen is made by splitting water with renewable electricity, so burning it releases only water. It is promising for industries that cannot easily electrify, but it is costly and wasteful elsewhere.

Your fridge, doorbell, watch, and car can all be online. The Internet of Things has 15+ billion devices already. Here's how it works, what it enables, and the security mess we're creating.