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Medical Physics

  Medical Physics : Introduction: With the express purpose of enhancing human health and wellbeing, medical physics is the application of physics' ideas and techniques to the avoidance, detection, and treatment of human disorders. According to the International Labour Organization's International Standard Classification of Occupations, medical physics has been classified as a health profession since 2008.   Medical Physics However, a "medical physicist" is specifically a health professional with specialised education and training in the concepts and techniques of applying physics in medicine and competent to practise independently in one or more of the subfields of medical physics. Medical physics may also occasionally be referred to as biomedical physics, medical biophysics, applied physics in medicine, physics applications in medical science, radiological physics, or hospital radio-physics.Radiation oncology (also known as radiotherapy or radiation therapy), diagnos...
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Aerodynamics

  Aerodynamics : Introduction: Aerodynamics, which derives from the Ancient Greek words aero (air) and v (dynamics), is the study of air motion, particularly as it is influenced by solid objects like aeroplane wings. It touches on subjects related to gas dynamics, a branch of fluid dynamics. Aerodynamics and gas dynamics are frequently used interchangeably, however "gas dynamics" refers to the study of the motion of all gases rather than only air. Although fundamental ideas like aerodynamic drag were seen and recorded much earlier, the scientific science of aerodynamics did not start until the eighteenth century.Early aerodynamics research focused primarily on obtaining heavier-than-air flight, which Otto Lilienthal first accomplished in 1891. Since that time, the application of aerodynamics through mathematical analysis, empirical approximations, wind tunnel experiments, and computer simulations has provided a rational foundation for the advancement of heavier-than-air fligh...
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Electron microscope

  Electron microscope : Introduction: An electron microscope is a microscope that illuminates with a beam of accelerated electrons. Electron microscopes offer a higher resolving power than light microscopes and may expose the structure of smaller objects since the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons. While conventional light microscopes are constrained by diffraction to around 200 nm resolution and usable magnifications below 2000, a scanning transmission electron microscope has achieved more than 50 pm resolution in annular dark-field imaging mode and magnifications of up to roughly 10,000,000.   Electron microscope Similar to how optical light microscopes employ glass lenses, electron microscopes create electron optical lens systems using structured magnetic fields.   Microorganisms, cells, big molecules, biopsy samples, metals, and crystals are just a few of the biological and inorganic specimens that can have...
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