Science fiction movies

Science fiction (or sci-fi) is a film genre that uses speculative, fictional science-based depictions of phenomena that are not fully accepted by mainstream science, such as extraterrestrial lifeforms, spacecraft, robots, cyborgs, dinosaurs, mutants, interstellar travel, time travel, or other technologies. Science fiction films have often been used to focus on political or social issues, and to explore philosophical issues like the human condition. The genre has existed since the early years of silent cinema, when Georges Melies' A Trip to the Moon (1902) employed trick photography effects. The next major example (first in feature-length in the genre) was the film Metropolis (1927). From the 1930s to the 1950s, the genre consisted mainly of low-budget B movies. After Stanley Kubrick's landmark 2001: A Space Odyssey (1968), the science fiction film genre was taken more seriously. In the late 1970s, big-budget science fiction films filled with special effects became popular with audiences after the success of Star Wars (1977) and paved the way for the blockbuster hits of subsequent decades. Screenwriter and scholar Eric R. Williams identifies science fiction films as one of eleven super-genres in his screenwriters’ taxonomy, stating that all feature-length narrative films can be classified by these super-genres. The other ten super-genres are action, crime, fantasy, horror, romance, slice of life, sports, thriller, war, and western. According to Vivian Sobchack, a British cinema and media theorist and cultural critic: Science fiction film is a film genre which emphasizes actual, extrapolative, or 2.0 speculative science and the empirical method, interacting in a social context with the lesser emphasized, but still present, transcendentalism of magic and religion, in an attempt to reconcile man with the unknown (Sobchack 63). This definition suggests a continuum between (real-world) empiricism and (supernatural) transcendentalism, with science fiction films on the side of empiricism, and happy films and sad films on the side of transcendentalism.

On the prediction of the induced damage by the start-up sequence of Francis turbines: On operational resilience framework

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

Physical Mechanism of Interblade Vortex Development at Deep Part Load Operation of a Francis Turbine

On the prediction of the induced damage by the start-up sequence of Francis turbines: On operational resilience framework

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

Physical Mechanism of Interblade Vortex Development at Deep Part Load Operation of a Francis Turbine