Canning novelty. Early methods of manufacture employed poisonous lead solder for sealing the cans. Studies in the 1980s attributed the lead from the cans as a factor in the disastrous outcome of the 1845 Franklin expedition to chart and navigate the Northwest Passage. Later studies found this to be false. Increasing mechanization of the canning process, coupled with a huge increase in urban populations across Europe, resulted in a rising demand for canned food. A number of inventions and improvements followed, and by the 1860s smaller machine-made steel cans were possible, and the time to cook food in sealed cans had
Val de Cans International Airport of the old terminal was built and after its opening, the old terminal was demolished to give place for an extension to the new terminal. This new extended terminal greatly increased the comfort and area available to passengers by adding 6 jetways. The airport is located from downtown Belém. Val de Cans International Airport Belém/Val de Cans–Júlio Cezar Ribeiro International Airport is the main airport serving Belém, Brazil. Val de Cans (sometimes spelled Val de Cães) is the name of the neighborhood where the airport is located. Since 13 April 2010 the airport is named also after (1837–1887) a researcher