It is the wonder you feel when a talented beginner with no apparent stroking ability reduces you to a pile of self-hating excrement. It is the secret behind hitting placement winners on the run, on the reach, behind the back or between the legs. It is the reason that A players hardly ever miss no matter how hard they hit. Impulse is the mysterious, invisible magic underlying A-level tennis. Menu Introduction Psychophysics Checklist Talent Triggers Syndrome Finder Glossary Unified Force Theory of Tennis Impulse Soft Hands Stretch Shortening Cycle Foundations Setting the Tone LocknLoad Addressing The Ball The Geometry of Tennis Strokes Short Stroking Double Pump Balance Spin Spindirection Lag Leverage OtherHand Power vs Consistancy Propellerator Back and Forth The Pose Wave Theory Modulation Zone of Experience Metabolic Collapse Mind Games Energy Worse Before Better Locating the Zone Consistency Fear Feedback Checklist Taking Time Away The Shame Spiral Being the Ball Psycological Syndromes Syndrome Finder Walkabout Syndrome Fade Syndrome Tightness Syndrome Repression Syndrome Regression Syndrome Paralysis Syndrome Introversion Syndrome Nice Guy Syndrome ImpossibleDream Syndrome Forehandophobia Syndrome Expectationism Syndrome Ego Collapse Syndrome Defensiveness Syndrome Deenergizer Syndrome Alley-oops Syndrome Attribution Syndrome Trade-off Syndrome Dissatisfaction Syndrome Physics Syndromes Syndrome Finder Powerlessness Syndrome Short Court Syndrome Mis-hit Syndrome Inconsistency Syndrome Unconscionable Errors Syndrome Single Backswing Syndrome Rubber Legs Syndrome Rubber ElbowSyndrome Push Syndrome Underhitting Syndrome Lazy Feet Syndrome Hot Shoulder Syndrome Chicken Wing Syndrome Top Slice Syndrome Pile Driver Syndrome Overmodulation Syndrome Toss the Bouquet Syndrome Broken Timing Chain Syndrome Basic Science The Thalamus Ballistics Modulation Physics Power Wave Leverage Stance Counter Kicking Striking vs Stroking Stroke Theory Basic Engineering of All Strokes Serve Serve Toss Serve Footwork Serve Attack Angle Forehand Topspin Backhand Topspin (two handed) Backhand Topspin (one handed) Forehand Volley Backhand Volley Forehand Slice Backhand Slice Overhead Squash Shot Drop Shot One or Two Hands? How to Hit Stokes How to Hit a Topspin Forehand Stuff About Triggers Feedback Checklist Black Pearls Playing Style Basic Kinematics Slang Design, Drill and Deploy Feelings If you jump onto the floor from a table, the force on your legs can be immense if you land stiff-legged on a hard surface.Tennis Without Talent: Impulse: The Foundation of Control Deaths during car races decreased dramatically when the rigid frames of racing cars were replaced with parts that could crumple or collapse in the event of an accident.īones in a body will fracture if the force on them is too large. A longer collision time means the force on the car will be less. Another advantage is that a car will crumple in a collision, especially in the event of a head-on collision. One advantage of plastics is their lighter weight, which results in better gas mileage. The momentum change is the same for an occupant, whether an air bag is deployed or not, but the force (to bring the occupant to a stop) will be much less if it acts over a larger time. The dashboard padding in a car, and certainly the airbags, allow the net force on the occupants in the car to act over a much longer time when there is a sudden stop. There are many ways in which an understanding of impulse can save lives, or at least limbs.
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