Petrol price relief? Stephen Voller, chief executive of Cella Energy said he is confident the new fuel will work in existing cars. Artificial petrol that costs 19p per litre could be on forecourts in as little as three years. British scientists are refining the recipe for a hydrogen-based fuel that will run in existing cars and engines at the fraction of the cost of conventional petrol. With hydrogen... 

Inspired: The Roman army pen knife, a precursor to today's popular Swiss Army accessory The world’s first Swiss Army knife’ has been revealed – made 1,800 years before its modern counterpart. An intricately designed Roman implement, which dates back to 200AD, it is made from silver but has an iron blade. It features a spoon, fork as well as a retractable spike, spatula and small...