Hamish Scott from the UK has invented the Starpath, which is a special luminescent coating for roads and paths. The multi-layered, organic material collects and stores energy from light during the day and releases it as a blueish glow at night that can last for 16 hours. The technology is now being trialled at Christ's Pieces Park in Cambridge, and if successful, could slash electricity bills, plus it's 100% recyclable.