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2. Quick connect fitting - Wikipedia

   en.wikipedia.org/wiki/Quick_connect_fitting

   For hoses and piping, a quick connect fitting, also called a push fitting, is a coupling used to provide a fast, make-or-break connection of gas or liquid transfer lines. Operated by hand, quick connect fittings replace threaded or flanged connections, which require wrenches. When equipped with self-sealing valves, quick connect fittings will ...

3. Fiber cable termination - Wikipedia

   en.wikipedia.org/wiki/Fiber_cable_termination

   A fiber pigtail is a single, short, usually tight-buffered, optical fiber that has an optical connector pre-installed on one end and a length of exposed fiber at the other end. The end of the pigtail is stripped and fusion spliced to a single fiber of a multi-fiber trunk. Splicing of pigtails to each fiber in the trunk "breaks out" the multi ...

4. FASTON terminal - Wikipedia

   en.wikipedia.org/wiki/FASTON_terminal

   Faston female terminals in three sizes, with insulation Faston male terminals in three sizes, with insulation Various single wire connectors: FASTON blade terminals (bottom), ring terminals (2 left), spade terminals (5 top), bullet terminals, male and female (2 right with blue wires)

5. Twist-on wire connector - Wikipedia

   en.wikipedia.org/wiki/Twist-on_wire_connector

   If colored white, it typically may be used for splicing neutral wires in a device box, while leaving a pigtail free for connection to a device (such as a receptacle). If colored green, the assembly is intended to be used as a grounding pigtail, similar to the feedthrough twist-on wire connectors without a permanently-attached wire.

6. Subwoofer - Wikipedia

   en.wikipedia.org/wiki/Subwoofer

   Subwoofer enclosures come in a variety of designs, including bass reflex (with a port or vent), using a subwoofer and one or more passive radiator speakers in the enclosure, acoustic suspension (sealed enclosure), infinite baffle, horn-loaded, tapped horn, transmission line, bandpass or isobaric designs. Each design has unique trade-offs with ...

7. “History Cool Kids”: 91 Interesting Pictures From The Past

   www.aol.com/lifestyle/history-cool-kids-91...

   Image credits: historycoolkids The History Cool Kids Instagram account has amassed an impressive 1.5 million followers since its creation in 2016. But the page’s success will come as no surprise ...

8. Tightlock coupling - Wikipedia

   en.wikipedia.org/wiki/Tightlock_coupling

   Like all Janney couplers, the Tightlock is "semi-automatic". The couplers automatically lock when cars are pushed together, but workers must go between cars to hook up the air lines for the pneumatic brakes and connect cables for head-end power and other communications. To separate cars, a worker must use a lever to move the locking pin that ...

9. Rotary woofer - Wikipedia

   en.wikipedia.org/wiki/Rotary_woofer

   A rotary woofer is a subwoofer-style loudspeaker which reproduces very low frequency content by using a conventional speaker voice coil's motion to change the pitch (angle) of the blades of an impeller rotating at a constant speed. The pitch of the fan blades is controlled by the audio signal presented to the voice coil, and is able to swing ...