…an electric current flowing in one direction only…
…an electric current flowing in one direction only…
…a federal district of the US, coextensive with the city of Washington, situated on the Potomac River with boundaries on the states of Virginia and Maryland…
…the capital of the US; population 591,833 (est. 2008). It is coextensive with the District of Columbia, a federal district on the Potomac River with boundaries on the states of Virginia and Maryland. Founded in 1790, during the presidency of George Washington, it was planned and built as a capital city. Full name Washington DC…
…the capital of the US; population 591,833 (est. 2008). It is coextensive with the District of Columbia, a federal district on the Potomac River with boundaries on the states of Virginia and Maryland. Founded in 1790, during the presidency of George Washington, it was planned and built as a capital city. Full name Washington DC…
