Kinematics

Best phrased by surgeon, author, and inventor Leonard Shlain in his book, Art & Physics, “Revolutionary art and visionary physics are both investigations into the nature of reality.” However dissimilar Vincent van Gough’s Starry Night may seem from Isaac Newton’s second law of motion, according to Shlain, this is what fundamentally unifies the two subjects. Physics is the study of the natural world, while art is the representation of it. Art has been part of our culture longer than any of the…

gravitation acceleration that the object experiences. The experiment was used to investigate the theory weather the heavier the object that it is will fall faster or not. The method that was used to find gravity was through the derived version of kinematic definitions. The overall result in the experiment concluded that distance and mass does not effect on the gravitational acceleration that the object experiences, either a heavy item or light weight item falling at the same point will land at…

The Person-Environment-Occupation-Performance Model The Person-Environment-Occupation-Performance model (PEOP) has many similarities to the Occupation adaption model; however, it focuses more on the specific aspects of the person, environment, occupation and performance instead of the resulting overall process. This model was developed by Charles Christiansen and Carolyn Baum and it emphasizes that the therapist determines specific hindrances in each of the four categories referred to in the…

When it comes to designing a helmet, physics plays an important role. Newton’s second law of motion demonstrates the relationship between force, mass, and acceleration, explaining that the force is equal to the mass of an object times the acceleration. If we apply this rule to football, it can be concluded that although the mass (of the football player) is unlikely to be changed, the acceleration can be. The new Zero1 helmet was specifically designed to address the acceleration a player…

Intuitively we know that the size of an object can have a significant impact on its dynamics. We have seen athletes or animals creating moves beyond our imagination, as shown in Fig. 4.1. This is because their ability in manipulating different parts of their bodies in creating dynamic complexities shown in the images. Certainly we would not be able to ignore the role played by each part of the body if we were to analyze the dynamics of an extended object. However, there is one point, associated…

Foreground Question: Is physical therapy with exercise more effective than exercise in reducing pain in people with shoulder impingement? P: People with “shoulder impingement” I: Physical therapy with exercise C: Exercise O: Reduce pain Background Question: What is “Shoulder Impingment Syndrome?” Shoulder impingment syndrome (SIS), or medically known as subacromial impingment syndrome is a physiological condition in which structures within the shoulder complex are compressed. In healthy…

Injury Rates among Long Term Minimally Shod Runners Numerous studies have examined how standard shod runners transitioning into minimal shoes experienced changes in their landing kinematics, foot musculature, and arch conformation (Miller, Whitcome, Lieberman, Norton, & Dyer, 2014). Although many studies show how standard shoes can negatively affect feet musculature, arch conformation, and change landing, no studies show whether transitioning into minimal shoes actually leads to less injury.…

carried out the feasibility experiments on 15 healthy subjects and 15 patients with unilateral vestibular dysfunctions. The same project had an analysis done on the IMU data collected from the phone during the gameplay to quantify the head movement kinematics and to compare the quality of head movements among patients and healthy subjects. This project helped me learn different interdisciplinary skills from coding to understanding the clinical needs and patient management during trials. It was…

The true definition of an engineer changes depending on the person defining it. For an infant in the depths of the Saharan desert, an engineer is the person who fixes the pump that brings water to her village; for a teenager hooked on video games, an engineer is the messiah who reboots his virus-stricken computer right back up to normal. Amongst this variety of definitions, however, lies a singular fundamental linking factor: an engineer is someone who makes a positive impact in your life by…

How Electro-mechanical Actuator Works? A Rotary Electromechanical Actuation system with an Electric Motor, a gear box & an elastic spring to absorb peak torque loads experienced during operational life. The Schematic below describes the system. Fig. 1.1 Rotary Electro-mechanical Actuator Gearbox Requirements: The Gear Box at the Motor Output is intended to amplify the torque output of the Motor with reduction in speed. The tentative ratio is set at 10:1. Functional Requirements of…