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Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, [ 3 ] [ 2 ] [ 4 ] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
A bulletproof vest, also known as a ballistic vest or bullet-resistant vest, is a type of body armour designed to absorb impact and prevent the penetration of firearm projectiles and explosion fragments to the torso. The vest can be either soft—as worn by police officers, security personnel, prison guards, and occasionally private citizens to ...
A total of 18 aircraft participated in Operation Odiseo. On 4 November 2011, five Super Tucanos dropped 1000 lb (450 kg) and 250 lb (135 kg) bombs, plus high-precision smart bombs. This operation ended with the death of the leader of the Revolutionary Armed Forces of Colombia (Fuerzas Armadas Revolucionarias de Colombia, FARC), Alfonso Cano.
Kevlar KM2 is a synthetic para-aramid fibre produced by DuPont. The fiber is an evolution of the original Kevlar fibre. The following quotes summarise Kevlar KM2's properties. "DuPont created Kevlar KM2 to achieve the performance goals defined by casualty reduction testing for the Department of Defense. Today it is used extensively for ...
October 13, 2024 at 6:30 AM. David Ryder/Reuters. Sunday marks one month since members of the International Association of Machinists began their strike against Boeing. The cost: nearly $5 billion ...
The whaler on HMS Sheffield being manned with an armed boarding party to check a neutral vessel stopped at sea, 20 Oct 1941. The Blockade of Germany (1939–1945), also known as the Economic War, involved operations carried out during World War II by the British Empire and by France in order to restrict the supplies of minerals, fuel, metals, food and textiles needed by Nazi Germany – and ...
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The share of electricity produced from renewable energy in Germany has increased from 6.3 per cent of the national total in 2000 to 46.2 per cent in 2022. [40] Germany renewable power market grew from 0.8 million residential customers in 2006 to 4.9 million in 2012, or 12.5% of all private households in the country.