Satellite swarm could blast away asteroids

Scottish engineers have come up with a new way of dealing with asteroids that threaten the Earth - firing lasers at them from a swarm of small satellites flying in formation.

Monitoring structural safety - with paint

A new smart paint can monitor wind turbines, mines and bridges and detect microscopic faults long before structural damage occurs.

Eco-Helix turns waster heat into electricity

According to the Department of Energy and Climate Change, households in the United Kingdom use the equivalent of 7.6 million tons of oil per year to heat water.