light focusing
71mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …
72Leica Camera — Coordinates: 50°32′35″N 008°23′25″E / 50.54306°N 8.39028°E / 50.54306; 8.39028 …
73List of schools in South Australia — Government Schools Anangu and Aboriginal schoolsAboriginal Preschools and Kindergartens*Kalaya Children s Centre, Queenstown, South Australia *Kaurna Plains, Elizabeth, South Australia **Preschool School **Child CareAnangu schoolsLocated in the… …
74Evolution of the eye — The evolution of the eye has been a subject of significant study, as a distinctive example of a homologous organ present in a wide variety of taxa. The development of the eye is considered by some experts to be monophyletic; that is, all modern… …
75Optical aberration — v · d · e Optical aberration …
76Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …
77Cherenkov radiation — glowing in the core of the Advanced Test Reactor …
78Micro Four Thirds system — The Micro Four Thirds system (MFT) is a standard created by Olympus and Panasonic, and announced on August 5, 2008,[1] for mirrorless interchangeable lens digital cameras and camcorders[2] design and development. However, unlike the preceding… …
79X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… …
80Čerenkov radiation — (also spelled Cerenkov or Cherenkov) is electromagnetic radiation emitted when a charged particle (such as an electron) passes through an insulator at a speed greater than the speed of light in that medium. The characteristic blue glow of nuclear …
