lag angle
41History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …
42Transverse flow effect — is an aerodynamic effect encountered when the helicopter moves (typically forward) through the air.In a hover, the air above the rotor disk is being pulled down from above and is equally distributed around the rotor disk. The air is descending… …
43Sediment Profile Imagery — (SPI) is an underwater technique for photographing the interface between the seabed and the overlying water. The technique is used to measure or estimate biological, chemical, and physical processes occurring in the first few centimetres of… …
44Comparison CRT, LCD, Plasma — Further information: Comparison of display technology This is a page that lists advantages and disadvantages with CRT, LCD, Plasma and OLED. Contents 1 Comparison 1.1 CRT 1.2 LCD 1.3 Plasma …
45Glossary of golf — The following is a glossary of the terminology used in the sport of golf. Where words in a sentence are also defined elsewhere in this article, they appear in italics. Contents: Top · 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z …
46Automatic differentiation — In mathematics and computer algebra, automatic differentiation, or AD, sometimes alternatively called algorithmic differentiation, is a method to numerically evaluate the derivative of a function specified by a computer program. Two classical… …
47AC power — This article deals with power in AC systems. See Mains electricity for information on utility supplied AC power. Usually hidden from the unaided eye, the blinking of (non incandescent) lighting powered by AC mains is revealed in this motion… …
48Nucleation — Not to be confused with Microtubule nucleation . Nucleation is the extremely localized budding of a distinct thermodynamic phase. Some examples of phases that may form via nucleation in liquids are gaseous bubbles, crystals or glassy regions.… …
49Mark XIV bomb sight — The Mk. XIVA sighting head, which would be mounted in the front of the aircraft and connected to the computor by the cables coiled up on the left. The main features are the gyrostabilizer in the large cylinder, and the collimator on the moving… …
50Rhinoplasty — For the album by Primus, see Rhinoplasty (album). Rhinoplasty Intervention Rhinoplasty: The lower lateral cartilage (greater alar cartilage) exposed for plastic modification via the left nostril …
