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2. Glider (furniture) - Wikipedia

   en.wikipedia.org/wiki/Glider_(furniture)

   A glider or platform rocker is a type of rocking chair that moves as a swing seat, where the entire frame consists of a seat attached to the base by means of a double-rocker four-bar linkage. The non-parallel suspension arms of the linkage cause the chair to simulate a rocking-chair motion as it swings back and forth.

3. Hovercraft - Wikipedia

   en.wikipedia.org/wiki/Hovercraft

   A hovercraft (pl.: hovercraft [1]), also known as an air-cushion vehicle or ACV, [2] is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces. Hovercraft use blowers to produce a large volume of air below the hull , or air cushion, that is slightly above atmospheric pressure .

4. Alexander Schleicher GmbH & Co - Wikipedia

   en.wikipedia.org/wiki/Alexander_Schleicher_GmbH_&_Co

   ASK 14 (Single-seat touring motor glider) ASK 16 (Two-seat touring motor glider) ASK 18 (Club Class) ASK 21 (Glass fibre two-seat trainer) ASK 23 (Glass fibre Club Class) The modern era of using composite materials such as fiberglass and carbon fiber began with single-seat gliders designed by Gerhard Waibel. His designs are: ASW 12 (Open Class)

5. Schleicher ASK 21 - Wikipedia

   en.wikipedia.org/wiki/Schleicher_ASK_21

   The ASK 21 is a glass-reinforced plastic (GRP) two-seat glider aircraft with a T-tail. The ASK 21 is designed primarily for beginner instruction, but is also suitable for cross-country flying and aerobatic instruction.

6. Ground effect (aerodynamics) - Wikipedia

   en.wikipedia.org/wiki/Ground_effect_(aerodynamics)

   The deflected or "turned" flow of air creates a resultant force on the wing in the opposite direction (Newton's 3rd law). The resultant force is identified as lift. Flying close to a surface increases air pressure on the lower wing surface, nicknamed the "ram" or "cushion" effect, and thereby improves the aircraft lift-to-drag ratio.

7. List of How It's Made episodes - Wikipedia

   en.wikipedia.org/wiki/List_of_How_It's_Made_episodes

   How It's Made is a documentary television series that premiered on January 6, 2001, on the Discovery Channel in Canada and Science in the United States. The program is produced in the Canadian province of Quebec by Productions MAJ, Inc. and Productions MAJ 2.