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2. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   A double-tapped bushing, commonly shortened to bushing, is a fitting which serves as a reducer. It is a sleeve similar to a close nipple, but is threaded on both its inner and outer circumferences. Like a reducer, a double-tapped bushing has two threads of different sizes.

3. Coupling (piping) - Wikipedia

   en.wikipedia.org/wiki/Coupling_(piping)

   A coupling whose ends use the same connection method but are of different sizes is called a reducing coupling or reducer. An example is a 3/4" NPT to 1/2" NPT coupling.

4. Bushing - Wikipedia

   en.wikipedia.org/wiki/Bushing

   Bushing (bearing), a type of plain bearing; Bushing (electrical), an insulated device that allows a conductor to pass through a grounded conducting barrier; Bushing (isolator), a mechanical device used to reduce vibrational energy transfer between two parts; Drill bushing, a tool used to guide the placement of a hole when drilling in a workpiece

5. Bicycle chain - Wikipedia

   en.wikipedia.org/wiki/Bicycle_chain

   (1) outer plate; (2) inner plate; (3) pin; (4) bushing; (5) roller. The chain in use on modern bicycles has a 1 ⁄ 2 inch (12.7 mm) pitch , which is the distance from one pin center to another, ANSI standard #40, where the 4 in "#40" indicates the pitch of the chain in eighths of an inch; and ISO standard 606 (metric) #8, where the 8 indicates ...

6. Vibration isolation - Wikipedia

   en.wikipedia.org/wiki/Vibration_isolation

   Figure 3 (Ref. needed) shows a schematic of a vibration isolation system consisting of a weighted platform supported by a single six-DOF isolator incorporating the isolators of Figures 1 and 2 (Figures 1 and 2 are missing). Flexures are used in place of the hinged bars shown in Figure 1. A tilt flexure serves as the tilt-motion isolator.

7. Robot umpires are getting their first MLB test during spring ...

   www.aol.com/robot-umpires-getting-first-mlb...

   Just 1.6% of first pitches were challenges, but the figure increased to 3.9% for two-strike pitches, 5.2% for three-ball pitches and 8.2% for full counts.