Waste plastic could become a more valuable commodity following the development of a process that turns mixed plastic waste into a hydrocarbon-based product.
A team in the US has developed an inexpensive, portable Raspberry Pi 2-based camera that can photograph the retina without the need for pupil-dilating eye drops.
A cloud of ash from Iceland’s erupting volcano has stopped all flights over the UK, Ireland and the Nordic countries on a scale not seen since the 9/11 attacks in 2001.
