As indicated in Figure 25, the effect of the Sun's gravity on the near bulge (larger than it is on the far bulge) results in a net torque about the centre of the Earth.
When more than one muscle is active, there are many finite combinations of synergist and antagonist forces that can produce a given torque about the joint.
Paul Jones, product management and product line director for the Flying Spur, lifted the super-formed aluminum trunk lid to reveal the twin-turbo 12-cylinder 616 horsepower engine and said, "At Bentley, we don't talk about a torque curve, we talk about a torque plateau".
An implantation force of about 2500 N was estimated to be sufficient to achieve a torque capacity of about 30 N m with a small interference (70 μm).
The only known example of a biological "wheel"—a system capable of providing continuous propulsive torque about a fixed body is the flagellum, a propeller-like tail used by single-celled prokaryotes for propulsion.
In the Figure, the force vector F lies in the plane parallel to the line OL; the component FL, being parallel to OL, has no moment about OL, while the component FP, lying in the plane perpendicular to OL, has a moment, or torque, about OL equal to FP × d, in which d, the shortest distance between FP and OL, is the moment arm or lever arm.
Because the forces are not equal, there is a net twist, or torque about the center of gravity and the aircraft rotates about the roll axis.
Motivated by the need of decreasing the gravitational distortion and stress of the nonlinear optics with large aperture, as well as increasing the second harmonic generation (SHG) efficiency, a torque mounting configuration was proposed, where the external load brought about the torque to mitigate the distortion and stress.
In conjunction with a rigid boot to rotate the tibia and a force/moment sensor to allow precise determination of torque about the knee, a magnetic tracking system measures the axial rotation of the tibia with respect to the femur.
