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Old 12-05-2014, 09:44 AM   #5
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The blue ling (Molva dypterygia) is a member of the cod family. It is usually 70 to 110 cm long, but the maximum length is 155 cm. Blue ling feed on fish (flatfishes, gobies, rocklings) and crustaceans and benthic invertebrates. The fish reaches sexual maturity at the age of 6 to 12 years..(菱) species are floating annual aquatic plants, growing in slow-moving water up to 5 meters deep, native to warm temperate parts of Eurasia and Africa. They bear ornately shaped fruits, which in the case of T. bicornis resemble the head of a bull or the entirety of a flying Bat.. Each fruit contains a single very large starchy seed. T. natans and T. bicornis have been cultivated in China and India for at least 3,000 Years...

The XP-losive in C4 is RDX (cyclonite or cyclotrimethylene trinitramine), which makes up around 91% of C4 by mass.. The plasticizer is diethylhexyl (5.3%)or dioctyl sebacate and the binder is usually polyisobutylene (2.1%).. Another plasticizer used is dioctyl adipate (DOA).. A small amount of SAE 10 non-detergent motor oil (1.6%) is also added.. C4 is manufactured by combining the noted ingredients with binder dissolved in a solvent.. The solvent is then evaporated and the mixture dried and filtered. The final material is an off-white solid with a texture similar to modelling clay..A major advantage of C4 is that it can easily be molded into any desired shape.. C4 can be pressed into gaps, cracks, holes and voids in buildings, bridges, equipment or machinery. Similarly, it can easily be inserted into empty shaped charge cases of the type used by military engineers..The British military uses a very similar plastic explosive known as PE4. Like C4, it is an off-white colored solid and its explosive characteristics are nearly identical to C4. The type and proportion of plasticizer used differs, and PE4 has a slightly greater velocity of detonation, 8,210 m/s (26,900 ft/s).. Semtex is a somewhat similar plastic explosive..Composition B, colloquially "Comp B", is an explosive consisting of castable mixtures of RDX and TNT.. It is used as the main explosive filling in artillery projectiles, rockets, land mines, hand grenades, sticky bombs and various other munitions.. It was also used for the explosive lenses in the first implosion-type nuclear weapons developed by the United States..An explosive lens—as used, for example, in nuclear weapons—is a highly specialized explosive charge, a special type of a shaped charge. In general, it is a device composed of several explosive charges that are shaped in such a way as to change the shape of the detonation wave passing through it, conceptually similar to the effect of an optical lens on light.. The explosive charges that make it up have different rates of detonation.. To convert spherically expanding wavefront into spherically converging by single boundary between fast and slow explosives, the boundary shape must be a hyperboloid; to convert spherically diverging front into the flat one - paraboloid, and so on. Several boundaries can be used to reduce aberrations of The final wavefront... Nelly got a hot reception..4 big shots made improper advances toward her, but she defended her honour with great success.. You can watch it all on TV...

Last edited by lightgiver; 12-05-2014 at 09:47 AM.
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