Archimedes Principle


History of Hydrotherapy Earliest Use of the Hot Tub Introduction to Modern Hydrotherapy Understanding the properties and characteristics of water Archimedes Principle Bougier's Theorem Bernoulli's Theorem Reynolds' Theorem Prantiti's Theorem Fronde-zahm's Experiments Pascal's Law Development of the human being against gravity: Bronze Age: Use of Hot Tubs, Spas and Saunas Bronze Age: Use of Hot tubs and Spas in the Mediterranean Bronze Age: Use of Hot Tubs, Saunas and Spas in Asia Classical Period: Use of Hot Tubs, Spas and Saunas Early Asian Baths Classical Period: Evolution of Asian Hot Tub Construction Classical Period: Use of Spas, Saunas and Hot Tubs in the Middle East Classical Period: Use of Spas, Saunas and Hot Tubs in Meso-America In Depth: Roman Hot Tub and Spa Construction During the Classical Period The Baths of Caracalla Construction of the Baths at Caracalla: Basic Design Construction of the Baths at Caracalla: Materials Construction of the Baths: Metals Classical Period: Use of Spas, Saunas and Hot Tubs in Scandinavia The origin of sauna Middle Ages Middle Ages: Use of Spas, Saunas and Hot Tubs Middle Ages: Use of Spas, Saunas and Hot Tubs in Scandinavia Middle Ages: Use of Spas, Saunas and Hot Tubs in Japan Middle Ages: Hot Tub Culture Middle Ages: Hot tub and Spa Culture in Asia Middle Ages: Hot tub and Spa Culture in Scandinavia Renaissance Period Renaissance Period: Use of Hot Tubs, Spas and Saunas Renaissance Period: Use of Hot Tubs, Spas and Saunas in France Renaissance Period: Hot tub and Spa Culture in Asia Industrial Age Industrial Age: American Use of Hot Tubs, Spas and Saunas Modern Age Modern Hot Tubs, Spas and Saunas Modern Hot Tub, Spa and Sauna Culture: Asia Modern Sauna Culture in Scandanavia Conclusion Sources Health & Beauty Benefits of Exercise in Water Application and Benefits of Hydrotherapy Hydrotherapy in Neuropatients Hydrotherapy for the Treatment of Rheumatic Diseases Hydrotherapy for the Treatment of Inflammatory Arthritis Muscle Weakness - Strength Training Poor Balance Poor Posture Decreased Cardiovascular Fitness Progressive Hydrotherapy Exercise Hydrotherapy gait reeducation treatment plan Wrist and Hand Joints Pelvis Knee reconstruction Cervical Spine Injury Lumbar Spine Injury Spinal Fractures Disc Pathology Musculo-Tendinous Injuries Hydrotherapy in the Rehabilitation of Lower Limb Stress Fractures Hydrotherapy for Treatment of the Lumbopelvic Complex Chronic pain - Pain and Muscle Spasm Oedema Decreased range of movement Head Injury Epilepsy Burns Pediatric Hydrotherapy Head control Breathing control Relaxation through Hydrotherapy Juvenile Chronic Arthritis Hydrotherapy for the Clumsy Child Conclusion		Archimedes Principle This principle states that when a body is immersed in a fluid it experiences a buoyant force equal to the weight of the fluid that the body has displaced. In this theorem the relative density of water is equal to one. Thus any body of a density less than one will float. The relative density of the human body varies with age. The infant or young child has a relative density of approximately 0.6 and so flotation is assured. (Please note: a child's buoyancy will not prevent them from drowning. Please watch children at all times, especially around water.) The smaller the relative density the easier it is to float. In adolescence and early adulthood the relative density of the body is approximately 0.97. The body can float, though to do so becomes more difficult. In the later years with an increase in adipose tissue the relative density of the body tends to return towards 0.8 and so it becomes easier to float again. Each individual body part and tissue type has its own relative density. Some body parts, such as the arms, are less dense and float easily, while other parts, such as the legs, are denser and tend to sink. Thus the importance of studying the density of the person undertaking activity in water becomes apparent. In certain disabilities there are marked alterations in the density of body parts, as for example changes in density in the lower limbs of children with spina bifida or muscular dystrophy.