lens efficiency
71Nitrogen laser — A 337nm wavelength and 170 µJ pulse energy 20 Hz cartridge nitrogen laser A nitrogen laser is a gas laser operating in the ultraviolet range[1] (typically 337.1 nm) using molecular nitrogen as its gain medium, pumped by an electrical… …
72Total Spectrum Solar Concentrator — A Total Spectrum Solar Concentrator is a device used to optimise the efficiency of solar power. The suns rays are first concentrated using parabolic mirrors or a fresnel lens, and then spread out into a light spectrum via a prism. Each different… …
73Spider-Man's powers and equipment — The fateful spider bite that gave Peter Parker his powers. Amazing Fantasy #15, art by Steve Ditko. Spider Man s powers, abilities, and equipment are used by Marvel Comics superhero Spider Man in tandem to combat his many foes. He receives most… …
74TVS Flame — Infobox Motorcycle boxcolor = darkgreen name = TVS Flame manufacturer = TVS Motors engine = 124.8 cc ccvti 3 valve four stroke power = 10.5 bhp@7500rpm torque = 10Nm @ 6000rpm transmission = 4 speed clutch = Multi Plate Wet Type width = 760 mm… …
75industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
76Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
77Field of view — The field of view (also field of vision) is the angular extent of the observable world that is seen at any given moment.Different animals have different fields of view, depending on the placement of the eyes. Humans have an almost 180 degree… …
78Electric double-layer capacitor — Maxwell Technologies MC and BC series supercapacitors (up to 3000 farad capacitance) An electric double layer capacitor (EDLC), also known as supercapacitor, supercondenser, electrochemical double layer capacitor, or ultracapacitor, is an… …
79History of street lighting in the United States — The use of street lighting was first recorded in the Arab Empire from the 9th 10th centuries, [Fielding H. Garrison, History of Medicine :quote| The Saracens themselves were the originators not only of algebra, chemistry, and geology, but of many …
80Traffic Control — ➡ law enforcement * * * Introduction supervision of the movement of people, goods, or vehicles to ensure efficiency and safety. Traffic is the movement of people and goods from one location to another. The movement typically occurs… …
