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Pyotr Ilyich Tchaikovsky 's Symphony No. 4 in F minor, Op. 36, was written between 1877 and 1878. Its first performance was at a Russian Musical Society concert in Moscow on February 22 (or the 10th using the calendar of the time ), 1878, [1] with Nikolai Rubinstein as conductor. In Middle Europe it sometimes receives the nickname "Fatum", or ...
Selenium (Se) is an element in group 16, the chalcogens. Selenium is the first nonmetal in period 4, with properties similar to sulfur. Selenium is quite rare in pure form in nature, mostly being found in minerals such as pyrite, and even then it is quite rare. Selenium is necessary for humans in trace amounts, but is toxic in larger quantities.
Independence Day, known colloquially as the Fourth of July, is a federal holiday in the United States commemorating the Declaration of Independence, which was ratified by the Second Continental Congress on July 4, 1776, establishing the United States of America . The Founding Father delegates of the Second Continental Congress declared that the ...
Naruto Shippuden: Ultimate Ninja Storm 4, known in Japan as Naruto Shippūden: Narutimate Storm 4 (Japanese: NARUTO (ナルト) 疾風伝 ナルティメットストーム 4, Hepburn: Naruto Shippūden: Narutimetto Sutōmu 4), is a fighting game developed by CyberConnect2 and published by Bandai Namco Entertainment for PlayStation 4, Xbox One, and Windows (through Steam) in February 2016.
Anthony DeVante Edwards (born August 5, 2001), nicknamed " Ant-Man " or simply " Ant ", [1] is an American professional basketball player for the Minnesota Timberwolves of the National Basketball Association (NBA). A shooting guard, he played college basketball for the University of Georgia Bulldogs and was selected with the first overall pick ...
The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa ), which is equivalent to 1,013.25 millibars, [1] 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. [2] The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth; that is, the Earth's atmospheric pressure at sea level is ...
Helium-4 ( 4. He. ) is a stable isotope of the element helium. It is by far the more abundant of the two naturally occurring isotopes of helium, making up about 99.99986% of the helium on Earth. Its nucleus is identical to an alpha particle, and consists of two protons and two neutrons . Alpha decay of heavy elements in the Earth's crust is the ...
2,4-Dinitrophenylhydrazine ( 2,4-DNPH or DNPH) is the organic compound C 6 H 3 (NO 2) 2 NHNH 2. DNPH is a red to orange solid. It is a substituted hydrazine. The solid is relatively sensitive to shock and friction. For this reason DNPH is usually handled as a wet powder. DNPH is a precursor to the drug Sivifene .