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Non-fiction books at a Danish library, shelves displaying the word Fakta, Danish for "Facts" A fact is a true datum about one or more aspects of a circumstance. [1] Standard reference works are often used to check facts. Scientific facts are verified by repeatable careful observation or measurement by experiments or other means.
Discovery is the act of detecting something new, or something previously unrecognized as meaningful, "portal". In sciences and academic disciplines, discovery is the observation of new phenomena, new actions, or new events and involves providing new reasoning to explain the knowledge gathered through such observations, using knowledge previously acquired through abstract thought and from ...
In this context, data represent the raw facts and figures from which useful information can be extracted. Data are collected using techniques such as measurement , observation , query , or analysis , and are typically represented as numbers or characters that may be further processed .
1984: Comet Levy-Rudenko was discovered independently by David H. Levy on 13 November 1984 and the next evening by Michael Rudenko. (It was the first of 23 comets discovered by Levy, who is famous as the 1993 co-discoverer of Comet Shoemaker-Levy 9, the first comet ever observed crashing into a planet, Jupiter.) [120]
The following dates are approximations. 700 BC: Pythagoras's theorem is discovered by Baudhayana in the Hindu Shulba Sutras in Upanishadic India. [18] However, Indian mathematics, especially North Indian mathematics, generally did not have a tradition of communicating proofs, and it is not fully certain that Baudhayana or Apastamba knew of a proof.
Early 17th century: The closely cut "English" lawn created in the Jacobean epoch of gardening, as the garden and the lawn became places created first as walkways and social areas. The English lawn became a symbol of status of the aristocracy and gentry ; it showed that the owner could afford to keep land that was not being used for a building ...
Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.They migrated out of Africa during the Last Ice Age and had spread across Earth's continental land except Antarctica by the end of the Ice Age 12,000 years ago.
Spicer claimed that 420,000 people rode the D.C. Metro on inauguration day 2017, compared to 317,000 in 2013. He did not offer a source for his claim, or clarify the time periods being compared. Actual ridership figures between midnight and 11 AM were 193,000 in 2017 and 317,000 in 2013. [8] [9] Full-day ridership was 570,557 in 2017 and ...