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2. Trico - Wikipedia

   en.wikipedia.org/wiki/Trico

   1953: “Arctic” Winter Blade. The precursor to today’s premium winter blade, it was encased in a flexible ice-repellent hood that de-iced itself as the blade wiped. 1954: Four-Bar Blades. Early heavy duty wiper blades. 1956: Panoramic Rainbow or “P-R” Blades. The first windshield wiper blades to have an arc.

3. Windscreen wiper - Wikipedia

   en.wikipedia.org/wiki/Windscreen_wiper

   But as aerodynamic and styling concerns introduced curved windshields, these proved insufficient. In 1945, John W. Anderson, founder of Trico rival Anco, filed a patent for a wiper with branched arms to keep the blade pressed uniformly against both curved and flat glass, [16] adaptable to almost any windscreen curvature. [17]

4. Mary Anderson (inventor) - Wikipedia

   en.wikipedia.org/wiki/Mary_Anderson_(inventor)

   In 1902, [6] she visited to New York City in the winter. Anderson sat in a trolley car on a frosty day. Anderson observed that the trolley car driver struggled to see past the windows because of the falling sleet. The trolley car’s front window was designed for bad-weather visibility, but its multi-pane windshield system worked very poorly.

5. 30.5 cm MRK L/22 - Wikipedia

   en.wikipedia.org/wiki/30.5_cm_MRK_L/22

   The 30.5 cm Mantel Ring Kanone L/22 was a 30.5 cm 22 caliber long Krupp Mantel Ring Kanone (MRK). It was a rifled breech loader built-up gun with a Krupp cylindroprismatic sliding breech. It was a further development of the earlier 30.5 cm RK L/22 that Krupp had developed and exhibited at the 1873 Vienna World's Fair .

6. Tip-speed ratio - Wikipedia

   en.wikipedia.org/wiki/Tip-speed_ratio

   The tip-speed ratio, λ, or TSR for wind turbines is the ratio between the tangential speed of the tip of a blade and the actual speed of the wind, v. The tip-speed ratio is related to efficiency, with the optimum varying with blade design. [1] Higher tip speeds result in higher noise levels and require stronger blades due to larger centrifugal ...

7. 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