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 Ghana Telephone numbers in Ghana The Ghana telephone numbering plan is the system used for assigning telephone numbers in Ghana. It is regulated by the National Communications Authority, which holds responsibility for telecommunications. Since 1 May 2010, all fixed-line numbers and mobile numbers have 9 national (significant) numbers after the '0' trunk code. Due to the unreliability of fixed-line infrastructure in Ghana, mobile phones are more widely used. Competition among the various mobile carriers has spurred growth with a subscriber penetration rate of 98% in 2010. The poor call quality of mobile phones, however, means that more people hold more than