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Before Present (BP) or "years before present (YBP)" is a time scale used mainly in archaeology, geology, and other scientific disciplines to specify when events occurred relative to the origin of practical radiocarbon dating in the 1950s. Because the "present" time changes, standard practice is to use 1 January 1950 as the commencement date ...
The Temple of Deir-el-Bahari in Egypt contains a series of carvings that depict an expedition for incense. [9] The Babylonians used incense while offering prayers to divine [10] oracles. [11] Incense spread from there to Greece and Rome. Incense burners have been found in the Indus Civilization. [12] Evidence suggests oils were used mainly for ...
A cloaking device is a hypothetical or fictional stealth technology that can cause objects, such as spaceships or individuals, to be partially or wholly invisible to parts of the electromagnetic (EM) spectrum. Fictional cloaking devices have been used as plot devices in various media for many years. Developments in scientific research [ 1] show ...
A PDF file is often a combination of vector graphics, text, and bitmap graphics. The basic types of content in a PDF are: Typeset text stored as content streams (i.e., not encoded in plain text ); Vector graphics for illustrations and designs that consist of shapes and lines;
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Children of Time is a 2015 science fiction novel by author Adrian Tchaikovsky. The novel follows the evolution of a civilization of genetically modified Portia labiata (arachnoid) on a terraformed exoplanet , guided by an artificial intelligence based on the personality of one of the human terraformers of the planet.
A Wrinkle in Time. A Wrinkle in Time is a young adult science fantasy novel written by American author Madeleine L'Engle. First published in 1962, [ 2] the book won the Newbery Medal, the Sequoyah Book Award, the Lewis Carroll Shelf Award, and was runner-up for the Hans Christian Andersen Award. [ 3][ a] The main characters – Meg Murry ...
A mixture of other minerals, often including pyrite. Lapis lazuli ( UK: / ˌlæpɪs ˈlæz ( j) ʊli, ˈlæʒʊ -, - ˌli /; US: / ˈlæz ( j) əli, ˈlæʒə -, - ˌli / ), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.