Restoring an old French hand-cranked grinder from Val D'or, very possibly dating from 1933. The restoration begins with disassembly, revealing a complex gearbox with ball bearings, making the ...

This paper presents a low-cost circularly polarized (CP) small antenna for handheld satellite communications terminals in S-band. It consists of an elliptical vertical patch antenna (VPA) element ...

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Date 1919 1919- Call number 47704 Type Catalogs Trade catalogs Physical description <111> v. : ill. (some col.) Data Source Smithsonian Libraries Topic Lathes Milling-machines Grinding machines ...

The DJI Osmo Pocket 3 is, as the name implies, the third in a line of a small camera, though it doesn't look a lot like you might imagine a pocket camera to. Nor, to be honest, do we think it'd fare ...