Tea tree oil is able to cure dandruff and itchy scalps because the oil contains moisturizing benefits in addition to its anti-inflammatory, antibacterial, antifungal, and antiseptic properties. It also penetrates any blockage between your skin and sebaceous glands while screaming âBye Felicia!!!â to gross pore cooties.
Anatomy Explorer. Full Pronation/Supination Description. [Continued from above] . . . Two muscles in the forearm, the pronator teres and pronator quadratus, work together to achieve pronation by pulling on the radius bone of the forearm. The radius is specially designed to rotate at the elbow and wrist joints around the other forearm bone, the ulna. During pronation, the distal end of the radius rotates around the ulna from its position on the lateral side of the wrist to the medial side of the wrist. This action turns the hand, wrist, and forearm almost 180 degrees so that the palm faces posteriorly or inferiorly, depending on the position of the arm.
The simplest case of rotation around a fixed axis is that of constant angular speed. Then the total torque is zero. For the example of the Earth rotating around its axis, there is very little friction. For a fan, the motor applies a torque to compensate for friction. The angle of rotation is a linear function of time, which modulo 360Â° is a periodic function. An example of this is the two-body problem with circular orbits.