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  2. Barn (unit) - Wikipedia

    en.wikipedia.org/wiki/Barn_(unit)

    A barn (symbol: b) is a metric unit of area equal to 10 −28 m 2 (100 fm 2). This is equivalent to a square that is 10 −14 m (10 fm ) each side, or a circle of diameter approximately 1.128 × 10 −14 m (11.28 fm).

  3. National Register of Historic Places property types - Wikipedia

    en.wikipedia.org/wiki/National_Register_of...

    Buildings, as defined by the National Register, are structures intended to shelter some sort of human activity. Examples include a house, barn, hotel, church or similar construction. The term building, as in outbuilding, can be used to refer to historically and functionally related units, such as a courthouse and a jail, or a barn and a house. [1]

  4. Nuclear cross section - Wikipedia

    en.wikipedia.org/wiki/Nuclear_cross_section

    Nuclear cross sections are used in determining the nuclear reaction rate, and are governed by the reaction rate equation for a particular set of particles (usually viewed as a "beam and target" thought experiment where one particle or nucleus is the "target", which is typically at rest, and the other is treated as a "beam", which is a projectile with a given energy).

  5. Barn - Wikipedia

    en.wikipedia.org/wiki/Barn

    A barn is an agricultural building usually on farms and used for various purposes. In North America, a barn refers to structures that house livestock, including cattle and horses, as well as equipment and fodder, and often grain. [2] As a result, the term barn is often qualified e.g. tobacco barn, dairy barn, cow house, sheep barn, potato barn.

  6. Building occupancy classifications - Wikipedia

    en.wikipedia.org/wiki/Building_occupancy...

    Example of Group F structure, the Klann Organ Company, located in Waynesboro, Virginia. Building occupancy classifications refer to categorizing structures based on their usage and are primarily used for building and fire code enforcement. They are usually defined by model building codes, and vary, somewhat, among them. Often, many of them are ...

  7. Federal government of the United States - Wikipedia

    en.wikipedia.org/wiki/Federal_Government_of_the...

    The federal government of the United States (U.S. federal government or U.S. government) [a] is the common government of the United States, a federal republic located primarily in North America, comprising 50 states, five major self-governing territories, several island possessions, and the federal district (national capital) of Washington, D.C ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. State governments of the United States - Wikipedia

    en.wikipedia.org/wiki/State_governments_of_the...

    In the United States, state governments are institutional units exercising functions of government at a level below that of the federal government. Each U.S. state's government holds legislative, executive, and judicial authority over [1] a defined geographic territory.