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A Zero-Energy Building (ZEB), also known as a Net Zero-Energy (NZE) building, is a building with net zero energy consumption, meaning the total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site [1] [2] or in other definitions by renewable energy sources offsite, using technology such as heat pumps, high efficiency windows ...
The World Trade Center site, often referred to as "Ground Zero" or "the Pile" immediately after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City. [ 1 ] [ 2 ] The site is bounded by Vesey Street to the north, the West Side Highway to the west, Liberty Street to the south, and Church Street to the east.
World Trade Center (1973–2001), a building complex that was destroyed during the September 11 attacks in 2001 World Trade Center site, also known as "Ground Zero"; World Trade Center (2001–present), a building complex built on the site of the above
The cross installed on a pedestal at Ground Zero (2004). The World Trade Center cross, also known as the Ground Zero cross, is a formation of steel beams found among the debris of the World Trade Center site in Lower Manhattan, New York City, following the September 11 attacks in 2001.
After the attacks, the media termed the World Trade Center site "Ground Zero", while rescue personnel referred to it as "the Pile". In the ensuing recovery and cleanup efforts, personnel related to the metalwork and construction professions would descend on the site to offer their services and remained until the site was cleared in May 2002.
This point below the detonation is called "Ground Zero". Monument marking the hypocenter, or ground zero, of the atomic bomb explosion over Hiroshima. The term "ground zero" originally referred to the hypocenter of the Trinity test in Jornada del Muerto desert near Socorro, New Mexico, and the atomic bombings of Hiroshima and Nagasaki in Japan.
Ground zero describes the point on the Earth's surface (its hypocenter) closest to a nuclear detonation. In the case of an explosion above the ground, ground zero refers to the point on the ground directly below the nuclear detonation. Ground zero may also refer to: The World Trade Center site in New York City, after the September 11 attacks
Also Abrams' water-cement ratio law. A law which states that the strength of a concrete mix is inversely related to the mass ratio of water to cement. As the water content increases, the strength of the concrete decreases. abrasion The process of scuffing, scratching, wearing down, marring, or rubbing away a substance or substrate. It can be intentionally imposed in a controlled process using ...