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2. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   A modern ceiling fan A ceiling fan mid-spin. A ceiling fan is a fan mounted on the ceiling of a room or space, usually electrically powered, that uses hub-mounted rotating blades to circulate air. They cool people effectively by increasing air speed.

3. High-volume low-speed fan - Wikipedia

   en.wikipedia.org/wiki/High-volume_low-speed_fan

   Larger diameter fans can move more air than smaller fans at the same speed. A turbulent, high velocity air jet dissipates very quickly. A large column of air, however, "travels" farther than a small one due to the friction between moving air and stationary air, which occurs at the periphery of the moving column.

4. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   Fans inside audio power amplifiers help to draw heat away from the electrical components. Variable pitch fan: A variable-pitch fan is used to precisely control static pressure within supply ducts. The blades are arranged to rotate upon a control-pitch hub. The fan wheel will spin at a constant speed. The blades follow the control pitch hub.

5. Chandelier - Wikipedia

   en.wikipedia.org/wiki/Chandelier

   Some Bohemian chandeliers used wood instead of metal as the central stem due to the abundance of wood and wood carvers in the area. [54] The Bohemian style was largely successful across Europe and its biggest draw was the chance to obtain spectacular light refraction due to the facets and bevels of crystal prisms. Glass chandeliers became the ...

6. 4 Park Avenue - Wikipedia

   en.wikipedia.org/wiki/4_Park_Avenue

   The lunettes were surrounded by Adam style frames that resembled fans. [15] [20] The entrance was at the center of the Park Avenue elevation and contained a canopy. [20] There is a sealed service entrance on 49 East 33rd Street, leading to a tunnel. [21] In 1967, the lowest three floors were redesigned with a glass and travertine facade. [15]

7. Chandelier Tree - Wikipedia

   en.wikipedia.org/wiki/Chandelier_Tree

   The name "Chandelier Tree" comes from its unusual limbs that resemble a chandelier. The limbs, which measure from 4 to 7 ft (1.2 to 2.1 m) in diameter, begin 100 ft (30 m) above the ground. [4] It is 2,400 years old. [5] A vintage postcard of the Chandelier Tree was shown during the opening credits of National Lampoon's Vacation. [6]