Science and invention in Birmingham pen nibs per week. 1915: William Mills develops the first "safe grenade" meaning it is safe for the soldier throwing it rather than his opponent. It is named the Mills bomb, and is adopted by the British Army as its standard hand grenade in 1915. 75,000,000 grenades are supplied during The Great War. 1918: Much work is carried out by Oliver Lucas's company on the design and improvement of the military search light, he also designs a signalling lamp after experiences at the Somme and the design is later used by the British Army. 1920: Charles Henry Foyle invents the
Transport in Birmingham to serve the city's airport and the National Exhibition Centre (NEC). There is a network of rail services within Birmingham and the West Midlands county, operated by West Midlands Trains and supported by Transport for West Midlands (TfWM) (formerly called Centro). During 2014/15, there were nearly 51 million rail passenger journeys in the TfWM area. Birmingham has the highest proportion of rail commuters in England outside London. In the past few decades the proportion of journeys into central Birmingham by rail has grown sharply: 27% of journeys into Birmingham city centre in the peak hours were made by rail in