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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 ...
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 ...
Children of Time. (novel) 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 ...
In “The Secret Life of the Universe: An Astrobiologist's Search for the Origins and Frontiers of Life,” readers won't walk away with a clear-cut answer to that question. But they'll have a ...
In a dazzling fusion milestone, a magnetic mirror achieved first plasma. A major new player has entered the race toward endless energy. In a Dazzling Fusion Milestone, a Magnetic Mirror Achieved ...
The Wheel of Time. The Wheel of Time is a series of high fantasy novels by American author Robert Jordan, with Brandon Sanderson as a co-author for the final three installments. Originally planned as a six-book series with the publication of The Eye of the World in 1990, The Wheel of Time came to span 14 volumes, in addition to a prequel novel ...
The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format. [23] A COS tree file consists primarily of objects, of which there are nine types: [16] Boolean values, representing true or false; Real numbers ...
Today, amateur astronomers’ work is getting so sophisticated, many in the field have a hard time calling them amateurs. “We call ourselves ‘small telescope scientists,’ ” said Sims.