Fractures of the coronoid rarely occur in isolation. They usually occur in combination with a radial head fracture, a dislocation of the elbow, or both (terrible triad of the elbow).Large coronoid fractures often are associated with persistent elbow instability even after reduction of the dislocation.
Hydrothermal Vents. Measurement of tectonic plate movements. The amount of tectonic plate movement is measured using Global Positioning System (GPS) satellites and a network of GPS receivers. This technology allows scientists to measure plate movements as small as a few millimeters per year. click here to plot REAL-TIME data and visualize tectonic plate movement.
A tachometer is an instrument designed to measure the rotation speed of an object, such as a gauge in an automobile that measures the revolutions per minute (RPMs) of the engine's crankshaft. This device traditionally is laid out with a dial, a needle that indicates the current reading and markings that indicate safe and dangerous levels.