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A directed-energy weapon (DEW) is a ranged weapon that damages its target with highly focused energy without a solid projectile, including lasers, microwaves, particle beams, and sound beams. Potential applications of this technology include weapons that target personnel , missiles , vehicles, and optical devices.
Direct fire or line-of-sight fire refers to firing of a ranged weapon whose projectile is launched directly at a target within the line-of-sight of the user. [1] The firing weapon must have a sighting device and an unobstructed view to the target, which means no obstacles or friendly units can be between it and the target.
A direct job is employment created to fulfill the demand for a product or service. [1] An indirect job is a job that exists to produce the goods and services needed by the workers with direct jobs. [ 1 ] [ 2 ] Indirect employment includes the things need direct on the job as well as jobs produced because of the worker's needs (e.g., uniforms ).
"For 187 minutes on January 6, [2021], this man of unbridled destructive energy could not be moved," Chairman Bennie Thompson (D-Miss) said at the start of the hearing.
Sample from a kinetic energy weapon test. A piece of polycarbonate plastic weighing 7 grams (1 ⁄ 4 oz) was fired at an aluminium block at 7 km/s (23,000 ft/s), giving it muzzle energy of 171,500 J (126,500 ft⋅lbf); a typical bullet has muzzle energy of a few thousand joules, with the enormous .950 JDJ reaching 20,000 J (15,000 ft⋅lbf).
overlapping antonyms, a pair of comparatives in which one, but not the other, implies the positive: An example is "better" and "worse". The sentence "x is better than y" does not imply that x is good, but "x is worse than y" implies that x is bad. Other examples are "faster" and "slower" ("fast" is implied but not "slow") and "dirtier" and ...
Productive forces, productive powers, or forces of production (German: Produktivkräfte) is a central idea in Marxism and historical materialism.. In Karl Marx and Friedrich Engels' own critique of political economy, it refers to the combination of the means of labor (tools, machinery, land, infrastructure, and so on) with human labour power.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. Law of physics and chemistry This article is about the law of conservation of energy in physics. For sustainable energy resources, see Energy conservation. Part of a series on Continuum mechanics J = − D d φ d x {\displaystyle J=-D{\frac {d\varphi }{dx}}} Fick's laws of diffusion Laws ...