Cyril P. Callister Cyril P. Callister Cyril Percy Callister (16 February 1893 – 5 October 1949) was an Australian chemist and food technologist who developed the Vegemite yeast spread. The son of a teacher and postmaster, and one of seven children, he attended the Ballarat School of Mines and later won a scholarship to the University of Melbourne. He gained a Bachelor of Science degree in 1914 and a Master of Science degree in 1917. In early 1915, Callister was employed by food manufacturer Lewis & Whitty, but later that year he enlisted in the Australian Imperial Force. After 53 days, however, he
Shortages in Venezuela "from swimming pools, public buildings, and even tanker trucks" to survive. Due to the water shortages, there were "increased [numbers of] cases of diseases such as scabies, malaria, diarrhea and amoebiasis in the country", according to Miguel Viscuña, Director of Epidemiology of the Health Corporation of Central Miranda Venezuela also experienced shortages of electricity and was plagued by common blackouts. On 6 April 2016, President Maduro ordered public workers not to go to work believing it would cut down on energy consumption. However, the workers actually used more energy in their homes using air conditioning, electronics and appliances. On 20