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2. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   The 19-inch (482.6 mm) standard rack arrangement is widely used throughout the telecommunication, computing, audio, video, entertainment and other industries, though the Western Electric 23-inch standard, with holes on 1-inch (25.4 mm) centers, is still used in legacy ILEC / CLEC facilities. A 19-inch rack used for switches at the DE-CIX in ...

3. Photovoltaic mounting system - Wikipedia

   en.wikipedia.org/wiki/Photovoltaic_mounting_system

   Photovoltaic mounting systems (also called solar module racking) are used to fix solar panels on surfaces like roofs, building facades, or the ground. [1] These mounting systems generally enable retrofitting of solar panels on roofs or as part of the structure of the building (called BIPV ). [2] As the relative costs of solar photovoltaic (PV ...

4. Flat Display Mounting Interface - Wikipedia

   en.wikipedia.org/wiki/Flat_Display_Mounting...

   Most sizes of VESA mount have four screw-holes arranged in a square on the mount, with matching tapped holes on the device. The horizontal and vertical distance between the screw centres respectively labelled as 'A', and 'B'. The original layout was a square of 100mm. A 75 mm × 75 mm (3.0 in × 3.0 in) was defined for smaller displays.

5. Washington Monument - Wikipedia

   en.wikipedia.org/wiki/Washington_Monument

   : 3-3–3-5, figs 3.1–3.6, 3.9, 3.13, 4.11 : 39, 47–48, 67–73 An earthen terrace 60 feet (18 m) wide with its top at the base of the walls and steep sides was constructed in 1880–81 over the reinforced foundation while the rest of the monument was being constructed. During 1887–88, a knoll was constructed around the terrace tapering ...

6. RV sales are picking up. That’s a good sign for the economy

   www.aol.com/finance/rv-sales-picking-good-sign...

   Roller-coaster sales. RV shipments rocketed north of 600,000 in 2021, a nearly 40% jump from the year before. They moved down to a historically strong, but noticeably smaller, 493,000 the next ...

7. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   Barcode. A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called ...