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 Denmark Telephone numbers in Denmark Denmark generally uses an eight digit closed telephone numbering plan. Subscriber numbers are portable with respect to provider and geography, i.e. fixed line numbers can be ported to any physical address in Denmark. The Kingdom of Denmark also includes two autonomous regions, the Faroe Islands and Greenland. However, they are assigned each their own country calling code and are using different numbering plans. Split charge is not generally used in Denmark anymore; calls to 70 numbers are usually charged as regular landline calls. A few exceptions do exist, e.g., 70 10 11 55 (the TDC speaking