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Societal collapse (also known as civilizational collapse or systems collapse) is the fall of a complex human society characterized by the loss of cultural identity and of social complexity as an adaptive system, the downfall of government, and the rise of violence. [1] Possible causes of a societal collapse include natural catastrophe, war ...
The Course of Empireis a series of five paintings created by the English-born American painter Thomas Colebetween 1833 and 1836. It is notable in part for reflecting popular American sentiments of the times, when many saw pastoralismas the ideal phase of human civilization, fearing that empire would lead to gluttony and inevitable decay.
Plutonium-238 ( 238Pu or Pu-238) is a radioactive isotope of plutonium that has a half-life of 87.7 years. Plutonium-238 is a very powerful alpha emitter; as alpha particles are easily blocked, this makes the plutonium-238 isotope suitable for usage in radioisotope thermoelectric generators (RTGs) and radioisotope heater units.
The Iroquois are a mix of horticulturalists, farmers, fishers, gatherers and hunters, though traditionally their main diet has come from farming. For the Iroquois, farming was traditionally women's work and the entire process of planting, maintaining, harvesting and cooking was done by women. [181]
Plutonium-239 ( 239Pu or Pu-239) is an isotope of plutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although uranium-235 is also used for that purpose. Plutonium-239 is also one of the three main isotopes demonstrated usable as fuel in thermal spectrum nuclear reactors, along with uranium-235 ...
Washington has never been a particularly friendly place for Donald Trump. “It was also very sad driving through Washington, D.C., and seeing the filth and the decay and all of the broken ...
v. t. e. Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha, beta, and gamma decay.
The League of Nations ( LN or LoN; French: Société des Nations [sɔsjete de nɑsjɔ̃], SdN) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. [1] It was founded on 10 January 1920 by the Paris Peace Conference that ended the First World War.