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2 days ago · Martin Van Buren ( / væn ˈbjʊərən / van BURE-ən; Dutch: Maarten van Buren [ˈmaːrtə (n) vɑm ˈbyːrə (n)] ⓘ; December 5, 1782 – July 24, 1862) was an American lawyer, diplomat, and statesman who served as the eighth president of the United States from 1837 to 1841. A primary founder of the Democratic Party, he served as New York's ...
6 days ago · Young's modulus is defined as the ratio of the stress (force per unit area) applied to the object and the resulting axial strain (displacement or deformation) in the linear elastic region of the material. Although Young's modulus is named after the 19th-century British scientist Thomas Young, the concept was developed in 1727 by Leonhard Euler.
1 day ago · Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus Gossypium in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor percentages of waxes, fats, pectins, and water. Under natural conditions, the cotton bolls will increase the ...
5 days ago · A protein is a polyamide. Secondary structure: regularly repeating local structures stabilized by hydrogen bonds. The most common examples are the α-helix, β-sheet and turns. Because secondary structures are local, many regions of different secondary structure can be present in the same protein molecule.
2 days ago · v. t. e. A microorganism, or microbe, [a] is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells . The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from sixth century BC India.
3 days ago · The Whig Party was a political party that existed in the United States during the mid-19th century. [13] Alongside the slightly larger Democratic Party, it was one of the two major parties in the United States between the late 1830s and the early 1850s as part of the Second Party System. [14] Four presidents ( William Henry Harrison, John Tyler ...
1 day ago · v. t. e. The Oklahoma City bombing was a domestic terrorist truck bombing of the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, United States, on April 19, 1995, the second anniversary of the end to the Waco siege. The bombing was the deadliest act of terrorism in U.S. history before the September 11 attacks in 2001, and it ...
