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2. Downrigger - Wikipedia

   en.wikipedia.org/wiki/Downrigger

   A downrigger is a device used while fishing using the trolling method, which places a lure at the desired depth. A downrigger consists of a three to six-foot horizontal pole which supports a cannonball, generally 10 to 15 pounds, by a steel cable (generally stainless steel or wire). A clip, also known as a "release," attaches a fishing line to ...

3. Rack and pinion - Wikipedia

   en.wikipedia.org/wiki/Rack_and_pinion

   A rack and pinion has roughly the same purpose than a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.

4. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   19-inch rack. A full-height rack cabinet. A 19-inch rack is a standardized frame or enclosure for mounting multiple electronic equipment modules. Each module has a front panel that is 19 inches (482.6 mm) wide. The 19 inch dimension includes the edges or ears that protrude from each side of the equipment, allowing the module to be fastened to ...

5. Mount Washington Cog Railway - Wikipedia

   en.wikipedia.org/wiki/Mount_Washington_Cog_Railway

   The Mount Washington Cog Railway, also known as the Cog, is the world's first mountain-climbing cog railway (rack-and-pinion railway). The railway climbs Mount Washington in New Hampshire, United States. It uses a Marsh rack system and both steam and biodiesel -powered locomotives to carry tourists to the top of the mountain.

6. Rocket scientists build robot probes to gauge melting beneath ...

   www.aol.com/news/rocket-scientists-build-robot...

   Engineers who specialize in building NASA spacecraft to explore distant worlds are designing a fleet of underwater robot probes to measure how rapidly climate change is melting vast ice sheets ...

7. Clevis fastener - Wikipedia

   en.wikipedia.org/wiki/Clevis_fastener

   A clevis bracket generally takes the form of a solid metal piece with a flat rectangular base, fitted with holes for bolts or machine screws, and two rounded wings in parallel forming a clevis. Commonly used in aircraft and cars, clevis brackets allow mounting of rods to flat surfaces.