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The couple created by gravity and the ground reaction forces is necessary for a bicycle to turn at all. On a custom built bicycle with spring-loaded outriggers that exactly cancel this couple, so that the bicycle and rider may assume any lean angle when traveling in a straight line, riders find it impossible to make a turn.
Essentially, a gyroscope is a top combined with a pair of gimbals. Tops were invented in many different civilizations, including classical Greece, Rome, and China. [5] Most of these were not utilized as instruments. The first known apparatus similar to a gyroscope (the "Whirling Speculum" or "Serson's Speculum") was invented by John Serson in ...
G is the skew-symmetric gyroscopic matrix: K is the symmetric bearing or seal stiffness matrix; N is the gyroscopic matrix of deflection for inclusion of e.g., centrifugal elements; q(t) is the generalized coordinates of the rotor in inertial coordinates; f(t) is a forcing function, usually including the unbalance.
Torque-induced precession (gyroscopic precession) is the phenomenon in which the axis of a spinning object (e.g., a gyroscope) describes a cone in space when an external torque is applied to it. The phenomenon is commonly seen in a spinning toy top , but all rotating objects can undergo precession.
Within this budget Brennan produced a larger model, 6.0 by 1.5 feet (1.83 by 0.46 m), kept in balance by two 5.0-inch (127 mm) diameter gyroscope rotors. This model is still in existence in the London Science Museum. The track for the vehicle was laid in the grounds of Brennan's house in Gillingham, Kent.
In 2010 Daniella Reichstetter, a fellow Dartmouth student, licensed the technology from the inventors and set up a company based in San Francisco, USA called The Gyrobike Inc. [6] The company launched a working model based on the initial invention, called Gyrowheel, which was a stand-alone front wheel toy accessory that replaced the ...
"The end model is brilliant with the various movement it has and poses it can be set into." The set includes over 1,000 pieces, enough to keep them off of their phone for a couple of hours. Claire's
Shilovsky's gyrocar in 1914, London A gyrocar is a two-wheeled automobile.The difference between a bicycle or motorcycle and a gyrocar is that in a bike, dynamic balance is provided by the rider, and in some cases by the geometry and mass distribution of the bike itself, and the gyroscopic effects from the wheels.