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.
Old water pipe, remnant of the Machine de Marly near Versailles, France. For many centuries, lead was the favoured material for water pipes, because its malleability made it practical to work into shape (this use was so common that the word  plumbing  derives from the Latin word for lead).