Iceland Flag and Description. The flag of Iceland was officially adopted on June 19, 1915. The cross design is modeled after the Danish flag. The color red is said to symbolize the island's active volcanoes; white the ice and snow that covers most of the country, and blue is symbolic of the surrounding Atlantic Ocean.
Rigidity, or resistance to movement, affects most patients and usually begins in the legs or neck. The affected muscles will remain tense and contracted, and some patients may feel pain as well as stiffness. Attempting to move the limb of a patient in Rigidity may lead to short, jerky movements called 'cog-wheeling'.
A flywheel is a rotating mechanical device that is used to store rotational energy. Flywheels have an inertia called the moment of inertia and thus resist changes in rotational speed. The amount of energy stored in a flywheel is proportional to the square of its rotational speed.