External rotation

The IT band and gluteus muscle were split in line with the wound. The trochanter bursa was excised, and the fat was retracted over the short external rotator musculature. The piriformis and obturator internus and short external rotators were then dissected free from the posterior greater trochanter and tagged for later reattachment, exposing the posterior hip capsule. The posterior hip capsule was then incised along the intertrochanteric ridge and tagged in a U-type shape for later repair. The hip was dislocated with findings of a severely degenerative femoral head and acetabular, with a complete loss of articular cartilage…

is comprised of seven scored tests, including a deep squat, hurdle step, in-line lunge, shoulder mobility, active straight leg raise, trunk stability push-up, and rotary stability. Also, three pass or fail tests, including, shoulder impingement clearing test, spinal extension clearing test and spinal flexion clearing test. Testing took place in the Health and Human Performance lab of the Royal Brougham of Seattle Pacific University. Each test received a score from 0-3 (21 points possible) or a…

angular momentum during counterclockwise rotational spins. A figure skater is trained to use a double axel, a jump with forward takeoff, with a split jump to create a parabolic leap in the air. A double axel contains an additional rotation in the air due to the forward takeoff. Assuming that there is no friction on the ice and no resistance in the air, every figure skater must be concerned about his maximum height, horizontal and vertical displacement and the speed required to perform a…

serves as the outer steel walls to contain the shock wave, while at the same time providing a structure and frame for the slats and rods (which externally support the weight system). The rods that rotate with the slats also interface with the weight system which provides an opposing moment to resist rotation in order to delay the travel of the shock wave. Lastly, the shell serves as a structure to fasten the flow straighteners inside the posterior section of the device. The manufacturing of each…

Each powder mixture has unique characteristics, and so have a unique optimization curve to achieve an acceptable state of uniformity and particle size distribution. Many blending units are available which offer differing shear, convective and dispersion properties on the powder bed. Convective forces refer to large groups of particles moving in an orthogonal direction to the axis of rotation. Dispersion is random motion of particles due to collisions, usually parallel to the axis of rotation,…

Soccer is a sport that involves two teams of 11 players who strike a football with their feet. When the players kick the ball they can affects the way the ball spins in the air. Factors that affect the way a ball spins include: wind drag, the way the ball is struck, and friction. These affect it due to the change of the air-flow over the ball, which occur when the ball spins in both a translational and rotational motion. This is due to the magnus effect and bernoulli principle occurring when the…

Wall-e is a new, dare say one of the best upcoming roller coasters and it is based off of the sensational movie Wall-e made by Disney’s Pixar! In the movie, the plot takes place in 2805 where humans have abandoned Earth on the account of it was not in the ideal shape for humankind to survive in. Therefore, humans left robots to clean up the mess they had made where after some time, the Earth became habitable once more. Mankind had been sending extraterrestrial vegetation evaluators or EVE to…

recline, the apparatus resolved to utilizing a motor to drive rotation of a screw via a coupler, on which, a capture nut would be moved laterally. The capture nut was secured inside the lower rear arm bracket of the scissor mechanism, and movement of the nut was expected to provide the necessary lateral displacement to cause the struts to fold or expand and raise or lower the platform. The backrest was connected to the legrest via a lever-like connector beam where rotation of one of the rests…

Many big events happen every year. They all mean something and some of them are remembered forever. In the past few years, one of the most important events that took place was the “Project Stratos” in 2012. The goal of the mission was to prove a man could survive the speed of sound in a freefall. I will explain why I believe it was the most important event of 2012! First, Project Stratos is so important because of the accomplishment that was made and the fact that it broke many world records…

Dialogue Concerning the Two Chief World Systems P1) Over a twenty four hour period, the sun and planets can be seen moving from the east direction to the west direction. P2) The earth could not be moved by two motions like other planets, because there is no variance in the rising and setting of the heavens. P3) If the Earth moved, a dropped object would travel in the direction that the earth itself is moving and would be slowed down by said motion. Scientific experiments have exhibited that…