- published: 05 Feb 2016
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A sphere is an object shaped like a ball and can also be used to refer to a sphere-like region or shell.
Sphere may also refer to:
A sphere (from Greek σφαῖρα — sphaira, "globe, ball") is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball, (viz., analogous to a circular object in two dimensions). Like a circle, which geometrically is a two-dimensional object, a sphere is defined mathematically as the set of points that are all at the same distance r from a given point, but in three-dimensional space. This distance r is the radius of the ball, and the given point is the center of the mathematical ball. The longest straight line through the ball, connecting two points of the sphere, passes through the center and its length is thus twice the radius; it is a diameter of the ball.
While outside mathematics the terms "sphere" and "ball" are sometimes used interchangeably, in mathematics a distinction is made between the sphere (a two-dimensional closed surface embedded in three-dimensional Euclidean space) and the ball (a three-dimensional shape that includes the sphere as well as everything inside the sphere). The ball and the sphere share the same radius, diameter, and center.
A film, also called a movie, motion picture or photoplay, is a series of still images which, when shown on a screen, creates the illusion of moving images due to the phi phenomenon. This optical illusion causes the audience to perceive continuous motion between separate objects viewed rapidly in succession. A film is created by photographing actual scenes with a motion picture camera; by photographing drawings or miniature models using traditional animation techniques; by means of CGI and computer animation; or by a combination of some or all of these techniques and other visual effects. The word "cinema", short for cinematography, is often used to refer to the industry of films and filmmaking or to the art of filmmaking itself. The contemporary definition of cinema is the art of simulating experiences to communicate ideas, stories, perceptions, feelings, beauty or atmosphere by the means of recorded or programmed moving images along with other sensory stimulations.
The process of filmmaking is both an art and an industry.
Dustin Lee Hoffman (born August 8, 1937) is an American actor and director with a career in film, television, and theatre since 1960. He has been known for his versatile portrayals of antiheroes and vulnerable characters. He won the Academy Award for Best Actor in 1979 (for Kramer vs. Kramer) and 1988 (for Rain Man).
He first drew critical praise for starring in the play Eh?, for which he won a Theatre World Award and a Drama Desk Award. This was soon followed by his breakthrough 1967 film role as Benjamin Braddock, the title character, in The Graduate. Since then, Hoffman's career has largely been focused on cinema, with sporadic returns to television and the stage. His subsequent notable films include Midnight Cowboy, Little Big Man, Straw Dogs, Papillon, Lenny, Marathon Man, All the President's Men, Kramer vs. Kramer, Tootsie, Rain Man, Hook and Wag the Dog.
Aside from his two Academy award wins, Hoffman has been nominated for seven Academy Awards, plus thirteen Golden Globes, winning six (including an honorary one) and has won four BAFTAs, three Drama Desk Awards, a Genie Award, and an Emmy Award. Hoffman received the AFI Life Achievement Award in 1999, and the Kennedy Center Honors in 2012. Hoffman made his directorial debut in 2012, with Quartet.