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2. Whirligig - Wikipedia

   en.wikipedia.org/wiki/Whirligig

   Whirligig store. A whirligig is an object that spins or whirls, or has at least one part that spins or whirls. It can also be a pinwheel, spinning top, buzzer, comic weathervane, gee-haw, spinner, whirlygig, whirlijig, whirlyjig, whirlybird, or simply a whirly.

3. Wind turbine design - Wikipedia

   en.wikipedia.org/wiki/Wind_turbine_design

   An example of a wind turbine, this 3 bladed turbine is the classic design of modern wind turbines Wind turbine components : 1-Foundation, 2-Connection to the electric grid, 3-Tower, 4-Access ladder, 5-Wind orientation control (Yaw control), 6-Nacelle, 7-Generator, 8-Anemometer, 9-Electric or Mechanical Brake, 10-Gearbox, 11-Rotor blade, 12-Blade pitch control, 13-Rotor hub

4. IEC 61400 - Wikipedia

   en.wikipedia.org/wiki/IEC_61400

   IEC 61400-50-1:2022 Wind measurement - Application of meteorological mast, nacelle and spinner mounted instruments; IEC 61400-50-2:2022 Wind measurement - Application of ground-mounted remote sensing technology; IEC 61400-50-3:2022 Use of nacelle-mounted lidars for wind measurements

5. Pinwheel (toy) - Wikipedia

   en.wikipedia.org/wiki/Pinwheel_(toy)

   During the nineteenth century in the United States, any wind-driven toy held aloft by a running child was characterized as a whirligig, including pinwheels. Pinwheels provided many children with numerous minutes of enjoyment and amusement.

6. Beaches on Mars Once Rivaled Those on Earth - AOL

   www.aol.com/news/beaches-mars-once-rivaled-those...

   Relatively early in its history, Mars lost its magnetic field, which allowed the solar wind to claw away most of its atmosphere; with that, much of the water sublimed into space.

7. Nacelle (wind turbine) - Wikipedia

   en.wikipedia.org/wiki/Nacelle_(wind_turbine)

   A notable feature now found on some off-shore wind turbines is a large sturdy helicopter-hoisting platform built on top of the nacelle, capable of supporting service personnel and their tools, winched down to the platform from a helicopter hovering above it. [2]