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Self-destruct
A self-destruct is a mechanism that can cause an object to destroy itself or render itself inoperable after a predefined set of circumstances has occurred. Self-destruct mechanisms are typically found on devices and systems where malfunction could endanger large numbers of people. Uses Land mines Some types of modern land mines are designed to self-destruct, or chemically render themselves inert after a period of weeks or months to reduce the likelihood of friendly casualties during the conflict or civilian casualties after the conflict's end. The Amended Protocol II to the Convention on Certain Conventional Weapons (CCW), amended in 1996, requires that anti-personnel land mines deactivate and self-destruct, and sets standards for both. Landmines currently used by the United States military are designed to self-destruct after between 4 hours and 15 days depending upon the type. The landmines have a battery and when the battery dies, the land mine self-destructs. The self-des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Mine
A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automatically by way of pressure when a target steps on it or drives over it, although other detonation mechanisms are also sometimes used. A land mine may cause damage by direct blast effect, by fragments that are thrown by the blast, or by both. Landmines are typically laid throughout an area, creating a ''minefield'' which is dangerous to cross. The use of land mines is controversial because of their potential as indiscriminate weapons. They can remain dangerous many years after a conflict has ended, harming civilians and the economy. Seventy-eight countries are contaminated with land mines and 15,000–20,000 people are killed every year while many more are injured. Approximately 80% of land mine casualties are civilians, with children as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Love Is In The Bin
''Love is in the Bin'' is a 2018 art intervention by Banksy at Sotheby's London, with an unexpected self-destruction of his 2006 painting of ''Girl with Balloon'' immediately after it was sold at auction for a record £1,042,000. According to Sotheby's, it is "the first artwork in history to have been created live during an auction." The painting has been on permanent loan to the Staatsgalerie Stuttgart since March 2019. In October 2021, it sold at auction for £18,582,000, a record for the artist. Original work The painting is an adaptation of Banksy's 2002 mural ''Girl with Balloon'', rare as a unique work rather than a print. It was given by Banksy to a friend shortly after the " Barely Legal" exhibition in 2006. Banksy has said he prepared the self-destruct mechanism at this time in case the work was ever put up for auction. Auction and self-destruction Sotheby's London sold the painting at auction on 5 October 2018, at an artist-record price of £1,042,000 (then equivalent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Range Safety Officer
In the field of rocketry, range safety may be assured by a system which is intended to protect people and assets on both the rocket range and downrange in cases when a launch vehicle might endanger them. For a rocket deemed to be ''off course'', range safety may be implemented by something as simple as commanding the rocket to shut down the propulsion system or by something as sophisticated as an independent ''Flight Termination System'' (FTS), which has redundant transceivers in the launch vehicle that can receive a command to self-destruct then set off charges in the launch vehicle to combust the rocket propellants at altitude. Not all national space programs use flight termination systems on launch vehicles. Range safety officers or RSOs are also present in the hobby of model rocketry and then are usually responsible for ensuring a rocket is built correctly, using a safe engine/recovery device, and launched correctly. Flight termination Ground controlled termination Some la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alien (film)
''Alien'' is a 1979 science fiction horror film directed by Ridley Scott and written by Dan O'Bannon. Based on a story by O'Bannon and Ronald Shusett, it follows the crew of the commercial space tug ''Nostromo'', who, after coming across a mysterious derelict spaceship on an undiscovered moon, find themselves up against an aggressive and deadly extraterrestrial set loose on the ''Nostromo''. The film stars Tom Skerritt, Sigourney Weaver, Veronica Cartwright, Harry Dean Stanton, John Hurt, Ian Holm, and Yaphet Kotto. It was produced by Gordon Carroll, David Giler, and Walter Hill through their company Brandywine Productions, and was distributed by 20th Century Fox. Giler and Hill revised and made additions to the script; Shusett was the executive producer. The Alien and its accompanying artifacts were designed by the Swiss artist H. R. Giger, while concept artists Ron Cobb and Chris Foss designed the more human settings. ''Alien'' premiered on May 25, 1979, as the opening n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Search For Spock
''Star Trek III: The Search for Spock'' is a 1984 American science fiction film, written and produced by Harve Bennett, directed by Leonard Nimoy, and based on the television series ''Star Trek''. It is the third film in the ''Star Trek'' franchise and is the second part of a three-film story arc that begins with '' Star Trek II: The Wrath of Khan'' (1982) and concludes with '' Star Trek IV: The Voyage Home'' (1986). After the death of Spock (Nimoy), the crew of the USS ''Enterprise'' returns to Earth. When James T. Kirk ( William Shatner) learns that Spock's spirit, or katra, is held in the mind of Dr. Leonard "Bones" McCoy (DeForest Kelley), Kirk and company steal the decommissioned USS ''Enterprise'' to return Spock's body to his homeworld. The crew must also contend with hostile Klingons led by Kruge ( Christopher Lloyd) who are bent on stealing the secrets of a powerful terraforming device. Paramount Pictures commissioned the film after the positive critical and comme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snapchat
Snapchat is an American multimedia instant messaging app and service developed by Snap Inc., originally Snapchat Inc. One of the principal features of Snapchat is that pictures and messages are usually only available for a short time before they become inaccessible to their recipients. The app has evolved from originally focusing on person-to-person photo sharing to presently featuring users' "Stories" of 24 hours of chronological content, along with "Discover", letting brands show ad-supported short-form content. It also allows users to store photos in a password-protected area called "my eyes only". It has also reportedly incorporated limited use of end-to-end encryption, with plans to broaden its use in the future. Snapchat was created by Evan Spiegel, Bobby Murphy, and Reggie Brown, former students at Stanford University. It is known for representing a mobile-first direction for social media, and places significant emphasis on users interacting with virtual stickers and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Shuttle Challenger Disaster
On January 28, 1986, the broke apart 73 seconds into its flight, killing all seven crew members aboard. The spacecraft disintegrated above the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 11:39a.m. Eastern Time Zone, EST (16:39 Coordinated Universal Time, UTC). It was the first fatal accident involving an List of space programs of the United States, American spacecraft in flight. The mission, designated STS-51-L, was the tenth flight for the Space Shuttle orbiter, orbiter and the twenty-fifth flight of the Space Shuttle fleet. The crew was scheduled to deploy a communications satellite and study Halley's Comet while they were in orbit, in addition to taking school teacher Christa McAuliffe into space. The latter resulted in a higher than usual media interest and coverage of the mission; the launch and subsequent disaster were seen live in many schools across the United States. The cause of the disaster was the failure of the two O-ring seals in a joint in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scuttling
Scuttling is the deliberate sinking of a ship. Scuttling may be performed to dispose of an abandoned, old, or captured vessel; to prevent the vessel from becoming a navigation hazard; as an act of self destruct, self-destruction to prevent the ship from being captured by an enemy force (or, in the case of a vessel engaged in illegal activities, by the authorities); as a blockship to restrict navigation through a Channel (geography), channel or within a harbor; to provide an artificial reef for divers and marine life; or to alter the flow of rivers. Notable historical examples Skuldelev ships (around 1070) The Skuldelev ships, five Viking ships, were sunk to prevent attacks from the sea on the Danish city of Roskilde. The scuttling blocked a major waterway, redirecting ships to a smaller one that required considerable local knowledge. Cog near Kampen (early 15th century) In 2012, a Cog (ship), cog preserved from the keel up to the decks in the silt was discovered alongside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banksy
Banksy is a pseudonymous England-based street artist, political activist and film director whose real name and identity remain unconfirmed and the subject of speculation. Active since the 1990s, his satirical street art and subversive epigrams combine dark humour with graffiti executed in a distinctive stenciling technique. His works of political and social commentary have appeared on streets, walls and bridges throughout the world. Banksy's work grew out of the Bristol underground scene, which involved collaborations between artists and musicians. Banksy says that he was inspired by 3D, a graffiti artist and founding member of the musical group Massive Attack. Banksy displays his art on publicly visible surfaces such as walls and self-built physical prop pieces. Banksy no longer sells photographs or reproductions of his street graffiti, but his public "installations" are regularly resold, often even by removing the wall they were painted on. Much of his work can be classifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convention On Certain Conventional Weapons
The United Nations Convention on Certain Conventional Weapons (CCW or CCWC), concluded at Geneva on October 10, 1980, and entered into force in December 1983, seeks to prohibit or restrict the use of certain conventional weapons which are considered excessively injurious or whose effects are indiscriminate. The full title is Convention on Prohibitions or Restrictions on the Use of Certain Conventional Weapons Which May Be Deemed to Be Excessively Injurious or to Have Indiscriminate Effects. The convention covers land mines, booby traps, incendiary devices, blinding laser weapons and clearance of explosive remnants of war. Objectives The aim of the Convention and its Protocols is to provide new rules for the protection of civilians from injury by weapons that are used in armed conflicts and also to protect combatants from unnecessary suffering. The convention covers fragments that are undetectable in the human body by X-rays, landmines and booby traps, and incendiary weapons, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Social Media Platform
Social media are interactive media technologies that facilitate the creation and sharing of information, ideas, interests, and other forms of expression through virtual communities and networks. While challenges to the definition of ''social media'' arise due to the variety of stand-alone and built-in social media services currently available, there are some common features: # Social media are interactive Web 2.0 Internet-based applications. # User-generated content—such as text posts or comments, digital photos or videos, and data generated through all online interactions—is the lifeblood of social media. # Users create service-specific profiles for the website or app that are designed and maintained by the social media organization. # Social media helps the development of online social networks by connecting a user's profile with those of other individuals or groups. The term ''social'' in regard to media suggests that platforms are user-centric and enable communal acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Base
A military base is a facility directly owned and operated by or for the military or one of its branches that shelters military equipment and personnel, and facilitates training and operations. A military base always provides accommodations for one or more units, but it may also be used as a command center, training ground or proving ground. In most cases, military bases rely on outside help to operate. However, certain complex bases are able to endure on their own for long periods because they are able to provide food, water and other necessities for their inhabitants while under siege. Bases for military aviation are called military air bases, or simply "air bases". Bases for military ships are called naval bases. The environmental impact of a given military base is dependent on its size and the manner of operation conducted at the base. Commonly, habitat destruction, reductions in soil quality, chemical contamination, and noise pollution are among the environmental damages ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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