(Phys.org) —In photovoltaics, there is generally a trade-off in terms of semiconductor thickness, with thicker semiconductors offering better photon absorption and thinner ones offering higher charge carrier extraction ...
Century-old footage of the last known Tasmanian tiger in captivity has been brought to life by colourisation, offering a tantalising glimpse of the now-extinct creature.
Plants & Animals
Sep 7, 2021
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33803
One of the holy grails of solar cell technology may have been found, with researchers at UCLA announcing they have created a new organic polymer that produces electricity, is nearly transparent and is more durable and malleable ...
Energy & Green Tech
Aug 21, 2012
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A new voluntary system aimed at rooting out online copyright piracy using a controversial "six strikes" system is set to be implemented by US Internet providers soon, with the impact unclear.
Internet
Jan 26, 2013
12
0
(Phys.org) —In a move that would make the Alchemists of King Arthur's time green with envy, scientists have unraveled the formula for turning liquid cement into liquid metal. This makes cement a semi-conductor and opens ...
Condensed Matter
May 27, 2013
5
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Social scientists have long argued documentary films are powerful tools for social change.
Social Sciences
Sep 2, 2015
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772
In a remarkable feat, scientists at Empa, the Swiss Federal Laboratories for Materials Science and Technology, have developed thin film solar cells on flexible polymer foils with a new record efficiency of 20.4 percent for ...
Energy & Green Tech
Jan 17, 2013
49
0
Researchers from Empa have developed a flexible material that generates electricity when stressed. In future, it might be used as a sensor, integrated into clothing or even implanted in the human body, for instance, to power ...
Condensed Matter
Nov 10, 2017
3
2031
The development of electronic applications can take on many new forms to include foldable and wearable displays to monitor human health and act as medical robots. Such devices rely on organic-light emitting diodes (OLEDs) ...
It's been a half-century since the magnificent Apollo 11 moon landing, yet many people still don't believe it actually happened. Conspiracy theories about the event dating back to the 1970s are in fact more popular than ever. ...
Space Exploration
Jul 10, 2019
20
814
Film encompasses individual motion pictures, the field of film as an art form, and the motion picture industry. Films are produced by recording images from the world with cameras, or by creating images using animation techniques or special effects.
Films are cultural artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them. Film is considered to be an important art form, a source of popular entertainment and a powerful method for educating — or indoctrinating — citizens. The visual elements of cinema gives motion pictures a universal power of communication. Some films have become popular worldwide attractions by using dubbing or subtitles that translate the dialogue.
Traditional films are made up of a series of individual images called frames. When these images are shown rapidly in succession, a viewer has the illusion that motion is occurring. The viewer cannot see the flickering between frames due to an effect known as persistence of vision, whereby the eye retains a visual image for a fraction of a second after the source has been removed. Viewers perceive motion due to a psychological effect called beta movement.
The origin of the name "film" comes from the fact that photographic film (also called film stock) had historically been the primary medium for recording and displaying motion pictures. Many other terms exist for an individual motion picture, including picture, picture show, photo-play, flick. A common name for film in the United States is movie, while the Europeans prefer cinema. Additional terms for the field in general include the big screen, the silver screen, the cinema and the movies.
This text uses material from Wikipedia, licensed under CC BY-SA
