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Romanian physical chemists (3 P) G. Romanian geophysicists (1 C, 5 P) N. Romanian nuclear physicists (7 P) Pages in category "Romanian physicists"
Notable Romanian physicists and inventors also include: Horia Hulubei in atomic physics, Șerban Țițeica in theoretical physics, especially thermodynamics and statistical mechanics, Mihai Gavrilă in quantum theory, Alexandru Proca known for the first meson theory of nuclear forces and Proca's equations of the vectorial mesonic field ...
The Romanian Journal of Physics is a peer-reviewed open access scientific journal covering physics. It is published by the Editura Academiei Române. The journal was established in 1956 as the Revue de physique [1] and renamed Revue Roumaine de physique in 1964, [2] obtaining its current title in 1994. [3] The editor-in-chief is Aureliu Emil ...
Romania is the largest country in Southeastern Europe and the twelfth-largest in Europe, having an area of 238,397 square kilometres (92,046 sq mi). [ 241]: 17 It lies between latitudes 43° and 49° N and longitudes 20° and 30° E. The terrain is distributed roughly equally between mountains, hills, and plains.
The jet as a whole keeps the ball some distance from the jet exhaust, and gravity prevents it from being blown away. The Coandă effect ( / ˈkwɑːndə / or / ˈkwæ -/) is the tendency of a fluid jet to stay attached to a convex surface. [1] Merriam-Webster describes it as "the tendency of a jet of fluid emerging from an orifice to follow an ...
Physics: Hermann Julius Oberth: 25 June 1894 in Sibiu, Romania 28 December 1989 in Nuremberg, Bavaria, Germany 1967 "for contributions to astronautics and rocketry, and discovering the effect for fuel-saving maneuvers in interplanetary space flights (Oberth effect)." Ferdinand Cap (1924–2016) Austria: Chemistry: Costin Nenițescu
Definition. A pseudo-Riemannian manifold is a differentiable manifold equipped with an everywhere non-degenerate, smooth, symmetric metric tensor . Such a metric is called a pseudo-Riemannian metric. Applied to a vector field, the resulting scalar field value at any point of the manifold can be positive, negative or zero.
In differential geometry, a Riemannian manifold is a geometric space on which many geometric notions such as distance, angles, length, volume, and curvature are defined. Euclidean space, the -sphere, hyperbolic space, and smooth surfaces in three-dimensional space, such as ellipsoids and paraboloids, are all examples of Riemannian manifolds.