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A graphical view of the Cosmic Calendar, featuring the months of the year, days of December, the final minute, and the final second. The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its currently understood age of 13.8 billion years to a single year in order to help intuit it for pedagogical purposes in science education or popular science.
One-letter words play a role in the Oulipian [155] constraint, a form of rhopalic verse in which the first line consists of a one-letter word. [156] But above all, they are the subject of a notable experiment by François Le Lionnais , dating from 1957 and published in La Littérature potentielle in 1973, of "Réduction d'un poème à une seule ...
A-type star In the Harvard spectral classification system, a class of main-sequence star having spectra dominated by Balmer absorption lines of hydrogen. Stars of spectral class A are typically blue-white or white in color, measure between 1.4 and 2.1 times the mass of the Sun, and have surface temperatures of 7,600–10,000 kelvin.
Space junk as product and form of human presence in space has existed ever since the first orbital spaceflights and comes mostly in the form of space debris in outer space. Space debris has been for example possibly the first human objects to have been present in space beyond Earth, reaching its escape velocity after being ejected purposefully ...
In this list, a star is identified by a lower-case letter of the Greek alphabet, followed by the Latin name of its parent constellation. The Bayer designation uses the possessive form of a constellation's name, which in almost every case ends in is, i or ae; um if the constellation's name is plural (see genitive case for constellations). In ...
The ology ending is a combination of the letter o plus logy in which the letter o is used as an interconsonantal letter which, for phonological reasons, precedes the morpheme suffix logy. [1] Logy is a suffix in the English language, used with words originally adapted from Ancient Greek ending in -λογία (-logia). [2]
Roughly five months after Patrick Cagey’s death, his parents wrote the facility where he had been treated to request their son’s medical records. Jim Cagey hand-delivered the letter to Recovery Works — he didn’t want to risk it getting lost in the mail. When the facility didn’t respond, Jim and Anne followed up with multiple phone calls.
The first human being to reach space (defined as an altitude of over 100 km) and to orbit Earth was Yuri Gagarin, a Soviet cosmonaut who was launched in Vostok 1 on April 12, 1961. The first human to walk on the surface of another Solar System body was Neil Armstrong , who stepped onto the Moon on July 21, 1969 during the Apollo 11 mission ...