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Merton contrasted a "multiple" with a "singleton"—a discovery that has been made uniquely by a single scientist or group of scientists working together. [6] The distinction may blur as science becomes increasingly collaborative. [7] A distinction is drawn between a discovery and an invention, as discussed for example by Bolesław Prus. [8]
More recently, Internet archives have been saving copies of webpages, documenting the history of the Internet. Other methods of collecting historical information have also accompanied the change in technologies; for example, since at least the 20th century, attempts have been made to preserve oral history by recording it.
It has been suggested that he may have also discovered the binomial theorem in this context. [52] 3rd century BC: Eratosthenes discovers the Sieve of Eratosthenes. [53] 3rd century BC: Archimedes derives a formula for the volume of a sphere in The Method of Mechanical Theorems. [54]
China woes have also been a concern for Nissan. Moody’s noted that Nissan’s China sales in 2023 were roughly half of its 2019 volume when China accounted for 1 in 3 of Nissan's global sales.
Various suggestions about the purpose or value of history have been made. Some historians propose that its primary function is the pure discovery of truth about the past. This view emphasizes that the disinterested pursuit of truth is an end in itself , while external purposes, associated with ideology or politics , threaten to undermine the ...
In a November 2006 Vanity Fair article, Richard Perle used the phrase to refer to the Iraq War, claiming that "mistakes were made, and I want to be very clear on this: They were not made by neoconservatives, who had almost no voice in what happened, and certainly almost no voice in what happened after the downfall of the regime in Baghdad." [16]
The crater is estimated to have been between 170–300 kilometres (110–190 mi) across when it first formed. [43] By 1850 Ma Eukaryotic cells, containing membrane-bound organelles with diverse functions, probably derived from prokaryotes engulfing each other via phagocytosis. (See Symbiogenesis and Endosymbiont).
Such life forms could have been ancestors to the many new forms that originated in the Cambrian Explosion. The end of the Proterozoic saw at least two Snowball Earths, so severe that the surface of the oceans may have been completely frozen. This happened about 716.5 and 635 Ma, in the Cryogenian period. [139]