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2. Focused ion beam - Wikipedia

   en.wikipedia.org/wiki/Focused_ion_beam

   As the diagram on the right shows, the gallium (Ga+) primary ion beam hits the sample surface and sputters a small amount of material, which leaves the surface as either secondary ions (i+ or i−) or neutral atoms (n 0). The primary beam also produces secondary electrons (e −). As the primary beam rasters on the sample surface, the signal ...

3. Electron-beam welding - Wikipedia

   en.wikipedia.org/wiki/Electron-beam_welding

   Magnetic lenses can shape the beam into a narrow cone and focus to a small diameter. This allows for a high power density on the surface to be welded. Values of power density in the crossover (focus) of the beam can be as high as 10 4 –10 6 W/mm 2. Penetration depths can be on the order of hundredths of a millimeter.

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5. Tractor beam - Wikipedia

   en.wikipedia.org/wiki/Tractor_beam

   Water tractor beam. A tractor beam is a device that can attract one object to another from a distance. [1] The concept originates in fiction: The term was coined by E. E. Smith (an update of his earlier "attractor beam") in his novel Spacehounds of IPC (1931).

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   Rare Vintage Texaco Porcelain 42-inch (Double Sided Sign Gas Oil): $2,500 on eBay Antique Porcelain Sign Gevaert Camera Store Advertising: $1,995 on vssoutlet.com Vintage Eagle Stamps Porcelain ...

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   Get 50% off this bestselling drill set from Dewalt during Black Friday. The set comes with a drill, driver, battery charger, carrying case, and two batteries.