Colorimetry (American English) or Colourimetry (British English; see spelling differences) is the science and technology used to quantify and describe physically the human color perception ..olorimetry (American English) or Colourimetry (British English; see spelling differences) is the science and technology used to quantify and describe physically the human color perception ..
Madison, Pennsylvania. For townships in Pennsylvania with similar names, see Madison Township, Pennsylvania (disambiguation). Madison is a borough in Westmoreland County, Pennsylvania, United States. The population was 397 at the 2010 census. The borough was named for James Madison, 4th President of the United States.
Madison was born in Port Conway, Virginia and raised on the Virginia frontier in Orange County. He graduated from the College of New Jersey (now Princeton University) in 1771. By 1776 he was elected to the State Assembly and the Virginia Convention that declared independence from Great Britain. From 1778 to 1779 Madison sat on the State Executive Council. He was a member of the Second Continental Congress and the Congress of the Confederation.