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
Telephone numbers in Spain arrangements for calls to Gibraltar, in which the domestic prefix 9567 was used instead of the international code 350, e.g.: This arrangement was discontinued on 10 February 2007 when Spain adopted the international 00350 prefix for all calls to Gibraltar, thereby bringing end to a dispute between Gibraltar and Spain. Mobile phone numbers begin with 6 or 7, followed by 8 digits (6xx xxx xxx or 7yx xxx xxx), where y can be 1 to 9, not 0 (zero). Note, numbers starting with 70 are personal numbers which can be re-directed to any other number by the personal owner. Since