John F. Kennedy was the US president during the Cuban Missile crisis General Secretary of the USSR was Nikita Krushchev and Fidel Castro was the Cuban ruler involved in this â¦ crisis.
What is the metal used for most electrical wiring and water pipes? Copper is the most common metal used in electrical wires because it has a structure which includes freely-moving negatively-charged particles-called electrons-which are es â¦ sential for the conduction of electricity.
Therefore corrosion of copper pipes and fittings incur significant costs. Fortunately, problems with copper corrosion are relatively rare and the cause is usually well understood. Problems include coloured (blue) water, pinholes in the pipe or fitting, and failure of copper hot water cylinders. History of copper pipes and products Copper pipes have been used for domestic water services for nearly 200 years. The introduction of copper pipes offered a stronger, lighter and cheaper alternative to lead. The first pipes, used in 1810 (Reference 2), were made from sheet metal.