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2 giorni fa · Mercury is the first planet from the Sun and the smallest in the Solar System. In English, it is named after the ancient Roman god Mercurius ( Mercury ), god of commerce and communication, and the messenger of the gods. Mercury is classified as a terrestrial planet, with roughly the same surface gravity as Mars.
3 giorni fa · The Cretaceous–Paleogene ( K–Pg) extinction event, [a] also known as the Cretaceous–Tertiary (K–T) extinction, [b] was a sudden mass extinction of three-quarters of the plant and animal species on Earth, [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
2 giorni fa · Declines in the numbers of terrestrial and aquatic genera at times of extinction events. An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp fall in the diversity and abundance of multicellular organisms.
2 giorni fa · In probability theory, the multinomial distribution is a generalization of the binomial distribution. For example, it models the probability of counts for each side of a k -sided dice rolled n times. For n independent trials each of which leads to a success for exactly one of k categories, with each category having a given fixed success ...
1 giorno fa · History (600–1945) A pound = 20 shillings = 240 silver pennies (formerly) The pound sterling emerged after the adoption of the Carolingian monetary system in England c.800. Here is a summary of changes to its value in terms of silver or gold until 1816. [44] [45] Value of £1 sterling in grams and troy ounces.
2 giorni fa · In 1979, Joseph Hollinger, a former aide to Congressman Leo Ryan, claimed that Jonestown was a "mass mind control experiment" conducted by the CIA. A 1980 newspaper column by Jack Anderson also claimed that the CIA was involved in the Jonestown Massacre, and speculated that Deputy Chief of Mission of the US Embassy to Guyana Richard Dwyer had ties to the CIA. [220]
5 giorni fa · The Late Ordovician mass extinction is traditionally considered to occur in two distinct pulses. [10] The first pulse (interval), known as LOMEI-1, [11] began at the boundary between the Katian and Hirnantian stages of the Late Ordovician epoch. This extinction pulse is typically attributed to the Late Ordovician glaciation, which abruptly ...
