How Do Computers Recognise Images?
An image is a grid of numbers. Recognition works by passing that grid through layers that detect progressively more complicated patterns, from edges up to objects.
-
-
What Is Open Source and Why It Matters
Open source means the source code is published under a licence that lets others use, modify and share it. Most of the internet runs on software built that way, usually invisibly.
-
How a Computer Stores Information
Everything a computer holds is patterns of two states. The interesting part is not the binary, it is the ladder of storage types trading speed against size and cost.
-
A Public Atlas Predicting Every Possible Single-Letter DNA Change
A new atlas publishes predicted molecular effects for all nine billion possible single-letter changes in the human genome, turning a question that used to need a lab into a lookup.
-
Why Data Centres Are Turning to Nuclear Power
Commitments to build AI computing capacity are now arriving with power agreements attached, including nuclear deals running for decades. The constraint has stopped being chips.
-
How Recommendation Systems Decide What You See
Recommenders mostly do not analyse the item. They find people who liked what you liked, then show you what those people liked next, and that produces both the accuracy and the tunnel vision.
-
How Encryption Protects Your Data
Encryption turns data into something unreadable without a key. Modern systems use two different kinds at once, because each solves a problem the other cannot.
-
How Search Engines Rank Results
A search engine cannot search the live web. It searches a copy it built earlier, and ranking is a separate problem done with hundreds of signals rather than one formula.
-
How Supply Chains Break
Modern products depend on long chains of specialised suppliers. That efficiency is also fragility: each link is optimised for steady conditions, so a small break can stop everything downstream.
-
How the Internet Actually Works
The internet is not a thing owned by anyone. It is thousands of separate networks that agreed to speak the same protocol, passing your data along in small packets that each find their own way.