two types of hemolysis produced on blood agar by alpha and beta lysins found in Staphylococcus aureus and S. intermedius. extravascular hemolysis the hemolysis which occurs when fragments of erythrocytes and the majority of aged erythrocytes are phagocytosed directly by the cells of the mononuclear phagocytic system.
A professional aerial camera is a special, medium of large-format camera for photogrammetric survey or military purposes like reconnaissance or air combat documentation. The amateur's aerial camera may be a small camera mounted under a remote controlled aircraft model or in a small rocket.
A hidden camera or spy camera or security camera is a still or video camera used to record people without their knowledge. The camera is hidden because it is either not visible to the subject being filmed, or is disguised as another object.