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Showing posts from January, 2022

data science

  Data science is a "concept to unify statistics , data analysis , informatics   , and their related methods" in order to "understand and analyze actual phenomena" with data.  It uses techniques and theories drawn from many fields within the context of mathematics ,computer science , statistics , information science   , and domain knowledge  . However, data science is different from computer science and information science. Turning Award   winner Jim Gray   imagined data science as a "fourth paradigm" of science (empirical  , theoretical  , computational  , and now data-driven) and asserted that "everything about science is changing because of the impact of information technology  " and the data deluge .  A  data scientist  is someone who creates programming code, and combines it with statistical knowledge to create insights from data. Data science is an interdisciplinary field focused on extracting knowledge from data sets, which are typically l

china artificial sun

  China's "artificial sun" has set a new world record after superheating a loop of plasma  to temperatures five times hotter than the sun for more than 17 minutes, state media reported.  The EAST (Experimental Advanced Superconducting Tokamak) nuclear fusion reactor maintained a temperature of 158 million degrees Fahrenheit (70 million degrees Celsius) for 1,056 seconds, according to the Xinhua new agency . The achievement brings scientists a small yet significant step closer to the creation of a source of near-unlimited clean energy. The Chinese experimental nuclear fusion reactor smashed the previous record, set by France's Tore Supra tokamak in 2003, where plasma in a coiling loop remained at similar temperatures for 390 seconds. EAST had previously set another record in May 2021 by running for 101 seconds at an unprecedented 216 million F (120 million C). The core of the actual sun, by contrast, reaches temperatures of around 27 million F (15 million C). "The

jamais vu

Often described as the opposite of deja vu ,  jamais vu  involves a sense of eeriness and the observer's impression of experiencing something for the first time, despite rationally knowing they've experienced it before.  Jamais vu  is sometimes associated with certain types of aphasia , amnesia, and epilespy. Jamais vu  is most commonly experienced when a person momentarily does not recognise a word or, less commonly, a person or place, that they know. This can be achieved by anyone by repeatedly writing or saying a specific word out loud . After a few seconds one will often, despite knowing that it is a real word, feel as if "there's no way it is an actual word". The phenomenon is often grouped with deja vu and presque  vu   ( tip of the tongue , literally "almost seen"). Theoretically, a  jamais vu  feeling in a sufferer of a delirious disorder or intoxication could result in a delirious explanation of it, such as in Capgras delusion , in which the pat

ghost particles in large hardon collider

  Ghostly neutrinos have never been seen inside a particle accelerator, until now. Physicists have detected "ghost particles" called neutrinos inside an atom smasher for the first time.  The tiny particles, known as neutrinos , were spotted during the test run of a new detector at the Large Hadron Collider (LHC) — the world's largest particle accelerator, located at CERN near Geneva, Switzerland.  The landmark discovery, made by CERN's Forward Search Experiment (FASER) collaboration and presented in a Nov. 24 paper in the journal Physical Review D, is not just the first time that neutrinos have been seen inside the LHC, but it's also the first time they've been found inside any particle accelerator. The breakthrough opens up a completely new window through which scientists can investigate the subatomic world.  "Prior to this project, no sign of neutrinos has ever been seen at a particle collider," study co-author Jonathan Feng, a physics professor at