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The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmospheric, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation ...
Anammox, an abbreviation for "anaerobic ammonium oxidation", is a globally important microbial process of the nitrogen cycle [1] that takes place in many natural environments. The bacteria mediating this process were identified in 1999, and were a great surprise for the scientific community. [2] In the anammox reaction, nitrite and ammonium ...
Liquid nitrogen has a boiling point of about −196 °C (−321 °F; 77 K). It is produced industrially by fractional distillation of liquid air. It is a colorless, mobile liquid whose viscosity is about one-tenth that of acetone (i.e. roughly one-thirtieth that of water at room temperature). Liquid nitrogen is widely used as a coolant.
AmeriFlora '92 was an international horticultural exhibition held in Columbus, Ohio, United States from April 20 to October 12, 1992. Taking place on 88 acres (356,123 m 2) of landscaped grounds at Franklin Park, the exhibition cost $95 million to produce and attracted 5.5 million visitors. The exhibition was billed as the first international ...
Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.
The LeVeque Tower is a 47-story skyscraper in Downtown Columbus, Ohio. At 555 feet 5 inches (169.29 m) it was the tallest building in the city from its completion in 1927 to 1974, and remains the second-tallest today. Designed by C. Howard Crane, the 353,768-square-foot (32,866.1 m 2) Art Deco skyscraper was opened as the American Insurance ...
The term "nitrogen hypoxia" started to emerge in state legislation in 2015, when Oklahoma authorized it as an execution method after a botched lethal injection prompted its public safety ...
The Lazarus House is a historic house in Downtown Columbus, Ohio. It was built in 1886 for Frederick Lazarus Sr., president of the F&R Lazarus & Company, and was designed in the French Second Empire style. It has undergone numerous renovations since its construction, including for conversion into office space, into apartments, and back to ...