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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.
A metal detector is an instrument that detects the presence of metal nearby. Metal detectors are useful for finding metal inclusions hidden within objects, or metal objects buried underground. They often consist of a handheld unit with a sensor probe which can be swept over the ground or other objects. If the sensor comes near a piece of metal this is indicated by a changing tone in earphones, or a needle moving on an indicator. Usually the device gives some indication of distance; the closer the metal is, the higher the tone in the earphone or the higher the needle goes. Another common type are stationary "walk through" metal detectors used at access points in prisons, courthouses, and airports to detect concealed metal weapons on a person's body.
Weed control is the botanical component of pest control, which attempts to stop weeds, especially noxious weeds, from competing with desired flora and fauna including domesticated plants and livestock, and in natural settings preventing non native species competing with native species.
The HALO Trust is a non-political and non-religious registered British charity and American non-profit organization which removes debris left behind by war, in particular land mines. With about 6,000 deminers worldwide, HALO's largest operation is in Afghanistan, where the organization operates as an implementing partner of the Mine Action Programme for Afghanistan (MAPA).
Unexploded ordnance, unexploded bombs (UXBs), and explosive remnants of war (ERW) are explosive weapons that did not explode when they were employed and still pose a risk of detonation, sometimes many decades after they were used or discarded. UXO does not always originate from wars; areas such as military training grounds can also hold significant numbers, even after the area has been abandoned. UXO from World War I continue to be a hazard, with poisonous gas filled munitions still a problem. When unwanted munitions are found, they are sometimes destroyed in controlled explosions, but accidental detonation of even very old explosives also occurs, sometimes with fatal results.
Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. It is a non-intrusive method of surveying the sub-surface to investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry. This nondestructive method uses electromagnetic radiation in the microwave band of the radio spectrum, and detects the reflected signals from subsurface structures. GPR can have applications in a variety of media, including rock, soil, ice, fresh water, pavements and structures. In the right conditions, practitioners can use GPR to detect subsurface objects, changes in material properties, and voids and cracks.
Lunar water is water that is present on the Moon. It was first discovered by NASA's Apollo 14 mission in 1971. Diffuse water molecules can persist at the Moon's sunlit surface, as discovered by NASA's SOFIA observatory in 2020. Gradually water vapor is decomposed by sunlight, leaving hydrogen and oxygen lost to outer space. Scientists have found water ice in the cold, permanently shadowed craters at the Moon's poles. Water molecules are also in the extremely thin lunar atmosphere.
Demining or mine clearance is the process of removing land mines from an area. In military operations, the object is to rapidly clear a path through a minefield, and this is often done with devices such as mine plows and blast waves. By contrast, the goal of humanitarian demining is to remove all of the landmines to a given depth and make the land safe for human use. Specially trained dogs are also used to narrow down the search and verify that an area is cleared. Mechanical devices such as flails and excavators are sometimes used to clear mines.
The Bushmaster Protected Mobility Vehicle or Infantry Mobility Vehicle is an Australian-built four-wheel drive armoured vehicle. The Bushmaster was primarily designed by the then government-owned Australian Defence Industries (ADI), and is currently produced by Thales Australia with a support contract provided by Oshkosh Truck following the acquisition of ADI. The Bushmaster is currently in service with the Australian Army, Royal Australian Air Force, Royal Netherlands Army, British Army, Japan Ground Self Defense Force, Fiji Infantry Regiment, Jamaica Defence Force and the New Zealand Army.
Cambodia is a country located in Southeast Asia that has a major problem with landmines, especially in rural areas. This is the legacy of three decades of war which has taken a severe toll on the Cambodians; it has some 40,000 amputees, which is one of the highest rates in the world. The Cambodian Mine Action Centre (CMAC) estimates that there may be as many as four to six million mines and other pieces of unexploded ordnance in Cambodia. Some estimates however run as high as ten million mines.
A mine clearance organization, or demining organization, is an organization involved in removal of landmines and unexploded ordnance (UXO) for military, humanitarian, or commercial reasons. Demining includes mine clearance, as well as surveying, mapping and marking of hazardous areas.
The Schü-mine 42, was a German anti-personnel mine used during the Second World War. It consisted of a simple wooden box with a hinged lid containing a 200-gram (7.1 oz) block of cast TNT and a ZZ-42 type detonator. A slot in the lid pressed down on the striker retaining pin, sufficient pressure on the lid caused the pin to move, releasing the striker which triggered the detonator.
Anti-personnel mines are a form of mine designed for use against humans, as opposed to anti-tank mines, which are designed for use against vehicles. Anti-personnel mines may be classified into blast mines or fragmentation mines, the latter may or may not be a bounding mine.
A minimum metal mine is a land mine that is designed to use the smallest amount of metal possible in its construction. Typically, the only metal components are located inside the fuze mechanism which triggers detonation. Both minimum metal anti-tank and anti-personnel mines exist. Some designs contain virtually no metal at all, e.g., less than a gram. This is achieved by encasing the explosive charge in a plastic, wooden, or glass body, with metallic components limited to the few small parts in the fuze which can not easily be made from other materials, such as the spring, striker tip, and shear pin. Minimum metal mines are extremely difficult to detect using conventional metal mine detectors and usually require modern techniques, such as robotic Multi Period Sensing (MPS) equipment, to identify, but it is still extremely difficult to find non-metallic mines. These techniques are usually restricted to well-funded international mine clearing organizations and major militaries, making minimum metal mines especially pernicious where they are encountered.
A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of device is important because there are many gases that can be harmful to organic life, such as humans or animals.
The Husky VMMD is a South African configurable counter-IED MRAP designed for route clearance and demining. It is designed to assist in the disposal of land mines and improvised explosive devices.
LundXY Global Ventures is an angel investment and startup catalyst headquartered in Copenhagen, Denmark, founded by serial entrepreneur Morten Lund in 2007. By 2013 parts of the operation had been superseded by Lund's new OnlyXO network.
APOPO is a registered Belgian non-governmental organisation and US non-profit which trains southern giant pouched rats to detect landmines and tuberculosis. They call their trained rats 'HeroRATs'.
The United Nations Mine Action Service (UNMAS) is a service located within the United Nations Department of Peacekeeping Operations that specializes in coordinating and implementing activities to limit the threat posed by mines, explosive remnants of war and improvised explosive devices.
The Mine Kafon Drone is a drone for demining, led by Afghanistan-born Massoud Hassani. The drone is designed to map an area for land mines, detect the mines, and then detonate them remotely. It has been field-tested with the Dutch Ministry of Defence. The use of a drone is safer and less expensive than typical methods for mine removal, which endanger trained mine disposal experts and dogs. The Mine Kafon Foundation, established by Hassani in 2013, is based in Eindhoven, Netherlands.
References
- ↑ Halper, Mark (Dec 3, 2006). "Saving Lives And Limbs With a Weed". Time. Archived from the original on December 5, 2007. Retrieved 26 February 2010.
- ↑ "Biotech to help clear the curse of landmines". The Hindu . Apr 7, 2005. Archived from the original on April 8, 2005. Retrieved 26 February 2010.
- ↑ "Notification Number: B/DK/06/01". EU Joint Research Centre. Retrieved 11 September 2012.
- ↑ "New weed may flag land mines". Christian Science Monitor. February 19, 2004. Retrieved 26 February 2010.
- ↑ Staff Use of Plants for landmine detection Greatcore inc., Comparison of Landmine Detection Methods, Retrieved 11 September 2012
- ↑ Aresa Biodetection ApS Largest Companies - top 100,000 in the Nordic countries, Retrieved 11 September 2012
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