British Army uniform and equipment in World War I It contained an inner can of explosive with an outer can of metal fragments or ball bearings. The fuses that were developed for the Jam Tin Grenade were activated by friction or a by lighted taper which was often replaced by a lighted cigarette. This was followed by the highly successful Mills bomb in 1915. It was oval in shape to fit into a clenched fist and time fused. The detonator was activated by a spring driven firing pin which was restrained by a lever that in turn was locked by a safety pin. The Mills bomb was a defensive
Telephone numbers in Brazil first years, then eight digits became the standard for several years. The last area code to convert fully from seven to eight digits was "61" (comprising the national capital city, Brasília, and neighbouring areas), in 2005. However, the popularity of multiple-SIM mobile phones in Brazil makes the country have more active mobile lines than inhabitants (as of November 2016, 248 million vs. 206 million), and by 2010 the country's most populous and economically important area code, "11" of metropolitan São Paulo (an area where over 20 million people live), was getting close to exhausting its available mobile numbers. Overlays and