two-step-type cleaner
31Electric vehicle — Sustainable energy Renewable energy …
32Diffusion 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… …
33Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
34Laser printer — HP LaserJet 4200 series printer, installed atop high capacity paper feeder …
35Washing machine — This article is about the laundry cleaning apparatus. For the Sonic Youth album, see Washing Machine (album). A typical modern front loading washing machine Irreler Bauerntradition shows an early Miele was …
36Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… …
37Cat — For other uses, see Cat (disambiguation) and Cats (disambiguation). Domestic cat[1] …
38Sheaf (mathematics) — This article is about sheaves on topological spaces. For sheaves on a site see Grothendieck topology and Topos. In mathematics, a sheaf is a tool for systematically tracking locally defined data attached to the open sets of a topological space.… …
39Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
40Chevrolet Corvette (C3) — This article is about the third generation Chevrolet Corvette (C3). For general Corvette information, see Chevrolet Corvette. Chevrolet Corvette (C3) 1968 Chevrolet Corvette Convertible Manufacturer Chevrolet Division of …
