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.
The opening of the Erie Canal also helped the first great western migration, as thousands of settlers avoided the Allegheny Mountains and moved to the fertile lands of Illinois, Indiana, Ohio, and beyond. Thus, the canal helped achieve Manifest Destiny for the United States of America.