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Observing the air traffic in Rõuge, Estonia. Observation in the natural sciences [1] is an act or instance of noticing or perceiving [2] and the acquisition of information from a primary source.
Data (/ ˈ d eɪ t ə / DAY-tə, US also / ˈ d æ t ə / DAT-ə) are a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally.
A plot of Lorenz' strange attractor for values ρ=28, σ = 10, β = 8/3. The butterfly effect or sensitive dependence on initial conditions is the property of a dynamical system that, starting from any of various arbitrarily close alternative initial conditions on the attractor, the iterated points will become arbitrarily spread out from each other.
Some engines suggest queries when the user is typing in the search box.. A search engine is a software system that provides hyperlinks to web pages and other relevant information on the Web in response to a user's query.
Mid-ocean ridge cross-section (cut-away view) A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics.It typically has a depth of about 2,600 meters (8,500 ft) and rises about 2,000 meters (6,600 ft) above the deepest portion of an ocean basin.
Edmund Gustav Albrecht Husserl (/ ˈ h ʊ s ɜːr l / HUUSS-url; [14] US also / ˈ h ʊ s ər əl / HUUSS-ər-əl, [15] German: [ˈɛtmʊnt ˈhʊsɐl]; [16] 8 April 1859 – 27 April 1938 [17]) was an Austrian-German philosopher and mathematician who established the school of phenomenology.
A black hole is a region of spacetime wherein gravity is so strong that no matter or electromagnetic energy (e.g. light) can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
In mathematics, the Fibonacci sequence is a sequence in which each element is the sum of the two elements that precede it. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted F n .