(high specific weight)

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• Ultra-high-molecular-weight polyethylene — (UHMWPE or sometimes shortened to UHMW), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene. It has extremely long chains, with molecular weight numbering in the… …   Wikipedia

• Specific impulse — (usually abbreviated I sp) is a way to describe the efficiency of rocket and jet engines. It represents the impulse (change in momentum) per unit of propellant. The higher the specific impulse, the less propellant is needed to gain a given amount …   Wikipedia

• Specific heat capacity — Specific heat capacity, also known simply as specific heat, is the measure of the heat energy required to increase the temperature of a unit quantity of a substance by a certain temperature interval. The term originated primarily through the work …   Wikipedia

• Weight training — This article is about strength training using weight (gravity) to generate resistance to contraction. For basic principles on increasing the strength of muscles, see strength training. A complete weight training workout can be performed with a… …   Wikipedia

• Specific strength — The specific strength is a material strength divided by its density. It is expressed in newton metres per kilogram, and is used for tensile strength as for compressive strength. It is sometimes known as the strength to weight ratio. Materials… …   Wikipedia

• High-density polyethylene — HDPE has SPI resin ID code 2 High density polyethylene (HDPE) or polyethylene high density (PEHD) is a polyethylene thermoplastic made from petroleum. It takes 1.75 kilograms of petroleum (in terms of energy and raw materials) to make one… …   Wikipedia

• High-performance liquid chromatography — An HPLC. From left to right: A pumping device generating a gradient of two different solvents, a steel enforced column and an apparatus for measuring the absorbance. Acronym HPLC Classification Chromatography …   Wikipedia

• High intensity training — (HIT) is a form of strength training popularized in the 1970s by Arthur Jones of Nautilus and MedX fame. Everything of any value related to exercise can be stated in less than a thousand words, can, in fact, be fairly well covered in only a few… …   Wikipedia

• High-speed rail — is a type of passenger rail transport that operates significantly faster than the normal speed of rail traffic. Specific definitions include 200 km/h (124 mph) and faster depending on whether the track is upgraded or new by the European Union,… …   Wikipedia

• High Resolution CT — or HRCT of the lung is a medical diagnostic test used for diagnosis and assessment of Interstitial lung disease. It involves the use of special computed tomography scanning techniques in order to assess the lung parenchyma.=Technique=HRCT is… …   Wikipedia

• High-powered rocket — High power rocketry is a hobby similar to model rocketry, with the major difference being that higher impulse range motors are used. The National Fire Protection Association (NFPA) definition of a high power rocket is one which has a total weight …   Wikipedia