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
Irrigation in Australia vast majority of rice grown in Australia, particularly in the Murrumbidgee Irrigation Area (MIA), but also the Murray Irrigation Area around Finley, Coleambally and Deniliquin areas. Today, more than one million tonnes of Australian rice is produced each year and exported to over 70 countries, generating 500 million in export income and supporting 63 towns in the Riverina and northern Victoria. Major rice mills are located in Leeton, Coleambally and the largest rice mill in the southern hemisphere in Deniliquin. The total gross value of irrigated agricultural production in the rice industry in 2004-05 was 102 million compared to 350