They are connected in series positive (+) to negative (-) for greater voltage, or in parallel (+ to + and-to -) for greater current capacity. The individual cells inside a 9-volt battery. An everyday examples of a battery is the 9-volt transistor battery, which is six 1.5-volt cells in series.
Definition of Erie Canal. Definition: The Erie Canal was the nation's first Important transportation system connecting the Atlantic Ocean, via the Hudson River in Albany, eastern New York, with Lake Erie. The Erie Canal stretched for 363 miles providing the first waterway connecting the Great Lakes with the Atlantic Ocean.
Why was the Panama Canal needed? Early European explorers of the Americas identified the narrow band of land between northern and southern America as an ideal place to construct a canal to link the Atlantic and Pacific Oceans. Various European colonists from the Central America area tabled a plethora of ideas for the construction of such a canal.