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2 days ago · A supernova ( pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely ...
2 days ago · In physics, Lagrangian mechanics is a formulation of classical mechanics founded on the stationary-action principle (also known as the principle of least action). It was introduced by the Italian-French mathematician and astronomer Joseph-Louis Lagrange in his presentation to the Turin Academy of Science in 1760 [1] culminating in his 1788 ...
3 days ago · In physics, a force is an influence that can cause an object to change its velocity, i.e., to accelerate, meaning a change in speed or direction, unless counterbalanced by other forces. The concept of force makes the everyday notion of pushing or pulling mathematically precise. Because the magnitude and direction of a force are both important ...
5 days ago · The question whether information is truly lost in black holes (the black hole information paradox) has divided the theoretical physics community. In quantum mechanics, loss of information corresponds to the violation of a property called unitarity , and it has been argued that loss of unitarity would also imply violation of conservation of ...
2 days ago · Theoretical physicist Kip Thorne was an executive producer and scientific consultant on the film, and wrote the tie-in book The Science of Interstellar. Cinematographer Hoyte van Hoytema shot it on 35 mm movie film in the Panavision anamorphic format and IMAX 70 mm. Filming began in late 2013 and took place in Alberta , Klaustur , and Los Angeles .
See the rules before posting, and the subreddit wiki for common questions. Basic homework questions are not allowed. ... PhD in Theoretical Physics - How to actually ...
2 days ago · Totalitarianism. Totalitarianism is a political system and a form of government that prohibits opposition political parties, disregards and outlaws the political claims of individual and group opposition to the state, and controls the public sphere and the private sphere of society. In the field of political science, totalitarianism is the ...
