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Random-orbital sanders use sandpaper disks, and many include integrated dust collectors. Disks are attached using either pressure-sensitive adhesives or a hook and loop system. On models equipped with a dust collection feature, a vacuum sucks discharged dust through holes in the paper and pad, feeding it to a bag, shop vac , or canister.
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GeoEye Inc. (formerly Orbital Imaging Corporation, or ORBIMAGE) was an American commercial satellite imagery company based in Herndon, Virginia. [3] GeoEye was merged into the DigitalGlobe corporation on January 29, 2013. [4]
Engine incorporating OCP (Orbital Combustion Process), on display in Jakarta. The Sarich orbital engine is a type of internal combustion engine, invented in 1972 by Ralph Sarich, an engineer from Perth, Australia, which features orbital rather than reciprocating motion of its central piston.
An asteroid first spotted in December has a 1.2% chance of hitting Earth in 2032. Scientists are tracking the space rock to learn more about its size and trajectory.
The rotation curve of a disc galaxy (also called a velocity curve) is a plot of the orbital speeds of visible stars or gas in that galaxy versus their radial distance from that galaxy's centre. It is typically rendered graphically as a plot , and the data observed from each side of a spiral galaxy are generally asymmetric, so that data from ...
The sun gun or heliobeam is a theoretical orbital weapon, which makes use of a concave mirror mounted on a satellite, to concentrate sunlight onto a small area at the Earth's surface, destroying targets or killing through heat.
Phase I of Boeing's Hypersonic Airplane Space Tether Orbital Launch (HASTOL) study, published in 2000, proposed a 600 km-long tether, in an equatorial orbit at 610–700 km altitude, rotating with a tip speed of 3.5 km/s. This would give the tip a ground speed of 3.6 km/s (Mach 10), which would be matched by a hypersonic airplane carrying the ...