Persistence of vision is the optical illusion that occurs when the visual perception of an object does not cease for some time after the rays of light proceeding from it have ceased to enter the eye. The illusion has also been described as "retinal persistence", "persistence of impressions", simply "persistence" and other variations. A very commonly given example of the phenomenon is the apparent fiery trail of a glowing coal or burning stick while it is whirled around in the dark.
The Flash is the name of several superheroes appearing in American comic books published by DC Comics. Created by writer Gardner Fox and artist Harry Lampert, the original Flash first appeared in Flash Comics #1. Nicknamed "the Scarlet Speedster", all incarnations of the Flash possess "superspeed", which includes the ability to run, move, and think extremely fast, use superhuman reflexes, and seemingly violate certain laws of physics.
In photography, shutter speed or exposure time is the length of time that the film or digital sensor inside the camera is exposed to light when taking a photograph. The amount of light that reaches the film or image sensor is proportional to the exposure time. 1⁄500 of a second will let half as much light in as 1⁄250.
Motion blur is the apparent streaking of moving objects in a photograph or a sequence of frames, such as a film or animation. It results when the image being recorded changes during the recording of a single exposure, due to rapid movement or long exposure.
Schlieren photography is a process for photographing fluid flow. Invented by the German physicist August Toepler in 1864 to study supersonic motion, it is widely used in aeronautical engineering to photograph the flow of air around objects.
Julius "Julie" Schwartz was an American comic book editor, and a science fiction agent. He was born in The Bronx, New York. He is best known as a longtime editor at DC Comics, where at various times he was primary editor over the company's flagship superheroes, Superman and Batman.
John Broome, who additionally used the pseudonyms John Osgood and Edgar Ray Meritt, was an American comic book writer for DC Comics. Along with Gil Kane, he co-created the supervillain Sinestro.
The Flash is a superhero appearing in American comic books published by DC Comics. He is the second character known as the Flash, following Jay Garrick. The character first appeared in Showcase #4, created by writer Robert Kanigher and penciler Carmine Infantino.
The science of photography is the use of chemistry and physics in all aspects of photography. This applies to the camera, its lenses, physical operation of the camera, electronic camera internals, and the process of developing film in order to take and develop pictures properly.
Time-lapse photography is a technique in which the frequency at which film frames are captured is much lower than the frequency used to view the sequence. When played at normal speed, time appears to be moving faster and thus lapsing. For example, an image of a scene may be captured at 1 frame per second but then played back at 30 frames per second; the result is an apparent 30 times speed increase. Similarly, film can also be played at a much lower rate than at which it was captured, which slows down an otherwise fast action, as in slow motion or high-speed photography.
Carmine Infantino was an American comics artist and editor, primarily for DC Comics, during the late 1950s and early 1960s period known as the Silver Age of Comic Books. Among his character creations are the Black Canary and the Silver Age version of DC superhero the Flash with writer Robert Kanigher, the stretching Elongated Man with John Broome, Barbara Gordon the second Batgirl with writer Gardner Fox, Deadman with writer Arnold Drake, and Christopher Chance, the second iteration of the Human Target with Len Wein.
Image stabilization (IS) is a family of techniques that reduce blurring associated with the motion of a camera or other imaging device during exposure.
The Turtle is the name of two supervillains appearing in comic books published by DC Comics, who were primarily enemies of the Flash.
Tilt–shift photography is the use of camera movements that change the orientation or position of the lens with respect to the film or image sensor on cameras.
In cinematography and photography, panning means swivelling a still or video camera horizontally from a fixed position. This motion is similar to the motion of a person when they turn their head on their neck from left to right. In the resulting image, the view seems to "pass by" the spectator as new material appears on one side of the screen and exits from the other, although perspective lines reveal that the entire image is seen from a fixed point of view.
Sports photography refers to the genre of photography that covers all types of sports.
The Flash is an ongoing American comic book series featuring the DC Comics superhero of the same name. Throughout its publication, the series has primarily focused on two characters who have worn the mantle of the Flash: Barry Allen, the second Flash, and Wally West, the third Flash. The series began at issue #105, picking up its issue numbering from the anthology series Flash Comics which had featured Jay Garrick as the first Flash.
In intentional camera movement (ICM), a camera is moved during the exposure for a creative or artistic effect. This causes the image points to move across the recording medium, producing varied effects such as streaking, textures, and layers in the resulting image. The central idea in ICM photography is that motion serves as the primary compositional element. Strict technical or definitional arguments remain vague in this form of photography which has a long history and is connected with many other forms of photography, such as Impressionism and often blurs genres and styles.
Strip photography, or slit photography, is a photographic technique of capturing a two-dimensional image as a sequence of one-dimensional images over time, in contrast to a normal photo which is a single two-dimensional image at one point in time. A moving scene is recorded, over a period of time, using a camera that observes a narrow strip rather than the full field. If the subject is moving through this observed strip at constant speed, they will appear in the finished photo as a visible object. Stationary objects, like the background, will be the same the whole way across the photo and appear as stripes along the time axis; see examples on this page.
All-Flash, originally published as All-Flash Quarterly, was a comic book magazine series published by All-American Publications and later National Periodicals featuring superhero Jay Garrick, the original Flash. The series was the first solo feature given to the Flash, who also appeared in the anthologies Flash Comics, All-Star Comics, and Comic Cavalcade. It ran for 32 issues from 1941 to 1947 and was originally published on a quarterly basis before changing over to a bi-monthly schedule with issue #6. Each issue regularly contained several stories featuring the Flash, as well as minor back-up features like Hop Harrigan, Butch McLobster, The Super Mobster, and Fat and Slat by cartoonist Ed Wheelan and, in later issues, Ton-O-Fun by Flash co-creator Harry Lampert.
