Data analysis

The 2025 World Happiness Report is out and it's not good news for the US. While the top four happiest countries are no shock – Scandinavia and Iceland – the US is becoming unhappier by the year, slipping to its lowest spot on the table ever.

Roughly the size of an iPhone, the Shanmu S1 sticks onto the inside of a toilet bowl and automatically scans urine to help detect diseases early, and provide prescription guidance for the entire family.

Data scientists in Colombia have have developed a computer model that can work out what crops work best under specific weather conditions. They have advised rice farmers not to plant crops, saving millions of dollars.

The Fitbit personal activity monitor is now being shipped to a backlog of customers, so we take a closer look at what exactly the device does