roll instability
1Kelvin–Helmholtz instability — Numerical simulation of a temporal Kelvin–Helmholtz instability The Kelvin–Helmholtz instability, after Lord Kelvin and Hermann von Helmholtz, can occur when velocity shear is present within a continuous fluid, or when there is sufficient… …
2dutch roll — An undesirable oscillatory instability of an aircraft characterized by a combined rolling and yawing movement. It is predominant in swept wing aircraft and can be overcome by reducing lateral stability and use of yaw dampers. This tendency is… …
3Ultralight trike — An ultralight trike, also known as a flex wing trike, weight shift control aircraft, microlight trike, deltatrike[1] or motorized deltaplane,[2] is a type of powered hang glider using a high performance Rogallo wing coupled to a propeller powered …
4CubeSat — For more information, see List of CubeSats. Ncube 2, a Norwegian Cubesat. A CubeSat is a type of miniaturized satellite for space research that usually has a volume of exactly one liter (10 cm cube), has a mass of no more than 1.33 kilograms …
5Dnepr rocket — Infobox rocket name =Dnepr (Dnipro/Konversiya) caption = function =Orbital carrier rocket manufacturer =Yuzhny Machine Building Plant country origin = Soviet Union (Ukraine) cpl year = cpl = height =34.3 m alt height =112.5 ft diameter =3 m alt… …
6Dnepr-1 — Dnepr (Dnipro/Konversiya) Function Orbital carrier rocket Manufacturer Yuzhny Machine Building Plant Country of origin Soviet Union (Ukraine) …
7Bicycle and motorcycle dynamics — A computer generated, simplified model of bike and rider demonstrating an uncontrolled right turn. An …
8Gyro monorail — The gyro monorail, gyroscopic monorail, gyro stabilized monorail, or gyrocar all denote a single rail land vehicle, road or rail, which uses the gyroscopic action of a spinning wheel, which is forced to precess, to overcome the inherent inverted… …
9Horizontal convective rolls — producing cloud streets (lower left portion of the image) over the Bering Sea …
10List of cloud types — Clouds are formed in Earth s atmosphere when water evaporates into vapor from oceans, lakes, and ponds or by evapotranspiration over moist areas of Earth s land surface. The vapor rises up into colder areas of the atmosphere due to convective,… …
