was introduced‚ Emile Berliner patented the Gramophone‚ which used records instead of tinfoil cylinders to record sound. When the record is recorded‚ a needle cuts grooves into a disc or piece of tinfoil‚ and when the needle runs along the grooves it had previously cut‚ the sound that the grooves represent is played back. The grooves were originally cut into a piece of tinfoil‚ but a record for the Gramophone (made of hard rubber or shellac‚ a resin) was much sturdier. Shortly after the phonograph’s
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How to make pencils? Background One of the oldest and most widely used writing utensils‚ the pencil originated in pre-historic times when chalky rocks and charred sticks were used to draw on surfaces as varied as animal hides and cave walls. The Greeks and Romans used flat pieces of lead to draw faint lines on papyrus‚ but it was not until the late 1400s that the earliest direct ancestor of today’s pencil was developed. About one hundred years later graphite‚ a common mineral occurring
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Case #4: Competition in the Golf Equipment Industry in 2008 2. Competition in the golf industry in 2008 is incredibly fierce. This is due to the fact that there is a decline in the number of golfers and the number of rounds played. Golf is viewed by many as a recreational event‚ or in other words something to do for fun. As the recent economy has had a downturn the golf industry has reflected this. Golf on most consumers list has moved towards the bottom has disposable incomes and salaries decrease
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and information of features on bullets. 2. What is rifling? What two types of markings does this produce? Rifling is the spiral grooves cut into the barrel of a gun in order to make the bullet spin when it is fired. The two types of markings the produces are grooves and lands. Grooves are low areas cut into the barrel‚ and lands are the raised areas between the grooves. 3. What is a distance determination? How is this done? Distance determination is the process of estimating the distance between
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Depending Upon Direction of Force Radial Bearing Rolling Contact Bearing OR Antifriction Bearing Sliding Contact Bearing OR Journal Bearing OR Sleeve Bearing OR Plain Bearing Thrust Bearing Single Row Deep Groove Ball Bearing Double Row Deep Groove Ball Bearing Ball Bearing Roller Bearing Angular Contact Bearing Self-aligning Bearing Cylindrical Spherical Tapered Needle Filling Notch Bearing 2 Classification of Bearing • Bearings are classified
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ANATOMIC KINESIOLOGY JOINT ACTIONS OF INTEREST & MUSCLES MOST INVOLVED FOR EACH ACTION Scapular (Shoulder Girdle) Actions: Elevation: upward movement (shoulder shrug) Depression: downward movement (return from shoulder shrug) Abduction: (protraction) away from the vertebral column – baseball stretch Adduction: (retraction) toward vertebral column – pinching shoulder blades together Upward Rotation: scapula’s inferior angle moving away from midline – raising arms Downward Rotation:
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Inverted Cone Shape Mortise Box Shape Mortise Mortise shape defines that each wall and floor is in form of a flat plane‚ meeting each other at definite line and point angles. It is the most accessible type of shape. Boundaries: Facial Groove Lingual Groove Mesial Marginal Ridge* Distal Marginal Ridge* *Step short of Marginal Ridge Crest Eliminate all defective tooth structures Eliminate unsupported Enamel Width of any portion of cavity (mesiodistally/buccolingually) should be at least
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Date due: 14 February 2014 Case: Ashely Mervyn Coulston is known as the ‘Burwood triple murderer’ he murdered three innocent victims in cold blood on 29 July 19921. Coulston had gone to a Burwood house under the guise of renting a room in the house that had been ‘advertised in the Herald Sun’2. Coulston had a bag that contained a .22 rifle‚ ammunition‚ a homemade silencer and plastic cable ties. Coulston bound‚ gagged and covered the victim’s heads (using a towel or dressing gown) and shot each
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having a cerebrum that is highly convoluted? What term is used to indicate its crooves? Its outward folds? What groove divides the crebrum into two hemispheres? What divides the parietal from the frontal lobe? The parietal from the temporal lobe? Convoluted cerebrum allows more neurons to occupy the limited space ridges are called gyri shallow grooves are called sulci and deeper grooves are called fissures
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Introduction Patellofemoral Pain Syndrome is a term used to describe pain in the front of the knee around the patella. It is a condition in which the cartilage under the patella is damaged due to an injury or a chronic stress. Patellofemoral pain syndrome is also known as runner’s knee‚ jumper’s knee‚ and can also be referred to as‚ anterior knee pain syndrome. Patellofemoral pain syndrome is more commonly found in the female sex‚ and in young adult athletes. However‚ studies have shown that patellofemoral
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