rotary storage
21National Museum of the United States Air Force — Coordinates: 39°46′55″N 84°06′32″W / 39.781976°N 84.108892°W / 39.781976; 84.108892 …
22Barrel — For other uses, see Barrel (disambiguation). For the use of oak aging barrels in wine, see Oak (wine). Traditional oak barrels in Chile …
23Radial shaft seal — Radial shaft seals are used to seal rotary elements, such as a shaft or rotating bore. Common examples include strut seals, hydraulic pumps seals, axle seals, power steering seals, and valve stem seals. Early radial shaft seals utilized rawhide… …
24Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
25Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
26tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
27Mojave Airport & Spaceport — |d=LoffAoffDbSoff|s=. [cite gnis|1653745|Mojave Airport] It is the first facility to be licensed in the United States for horizontal launches of reusable spacecraft, being certified as a spaceport by the Federal Aviation Administration on June 17 …
28Internal combustion engine — The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high temperature and high …
29Cement kiln — Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of… …
30Oil Industry Safety Directorate — The Oil Industry Safety Directorate (OISD) is an organisation supported by all petroleum companies of India, like IOCL, ONGC, BPCL, HPCL, OIL etc. OISD has basically framed rules and guidelines for Safe Distances to be observed for various… …
