The crisis that unfolded at the Fukushima Daiichi nuclear plant after Japan's megaquake and tsunami is rewriting the nuclear safety guide. There are some positives. Despite being shaken by an earthquake that exceeded the worst case assumed in their design, the reactors along Japan's Pacific coast suffered no serious damage from the ground movement.

The terrifying meltdowns and hydrogen explosions at the Fukushima Daiichi nuclear power station in the days following 11 March 2011 made the importance of backup electricity generators painfully clear.

The thought of wind power brings visions of giant turbines, high-altitude kites and graceful sailboats to mind. But the breeze has a more sinister side, full of turbulence that can wreak havoc with bridges and other structures.

As the cloud of orbiting junk shrouding the Earth grows ever denser, the most sophisticated garbage collectors of all time are taking shape.

A burgeoning blizzard of space debris is going to have a major impact on the future economics of space flight.

A wing tip that changes shape mid-flight to improve the plane's aerodynamics could reduce fuel consumption and cut noise around airports.

The safety features and power backups built into third-generation reactors should shut them down safely even without electrical power.

The first Formula 1 cars to be fitted with a controversial energy recovery system are due to race in this season's opening Grand Prix in Melbourne, Australia, on Sunday. But questions over the safety of the system remain unresolved in the run-up to the race.