Chelsea holds a B.F.A. from the Maryland Institute, College of Art (2005) and an M.A.T. from Johns Hopkins University (2011.) In addition to cartooning and being a first-time mother, she has worked as an elementary school art teacher.
The concept of primary energy is used in energy statistics in the compilation of energy balances, as well as in the field of energetics. In energetics, a primary energy source refers to the energy forms required by the energy sector to generate the supply of energy carriers used by human society.
Primary versus Secondary Sources. Primary Sources. Primary sources are original sources of information that have not yet been filtered through analysis, examination or interpretation. Typically, primary sources are contemporary to the events and individuals being researched. Primary sources differ both in content and format from discipline to discipline.