cylindrical reflector
61History of optics — Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek and Indian philosophers, and the development of geometrical optics in the Greco Roman… …
62Nernst glower — The Nernst glower is an obsolete device for providing a continuous source of (near) infrared radiation for use in spectroscopy. Typically it was in the form of a cylindrical rod or tube composed of a mixture of certain oxides such as zirconium… …
63KANUPP — Karachi Nuclear Power Plant is located at Karachi, Sindh, Pakistan.KANUPP, Karachi is a single unit CANDU PHWR with a total gross capacity of 137 MW. It is located at Paradise Point on the arid Arabian Sea Coast, about 15 miles to the west of… …
64Clinch River Breeder Reactor Project — Architect s conception of the Clinch River Breeder Reactor The Clinch River Breeder Reactor (CRBRP) Project was a joint effort of the U.S. Atomic Energy Commission (and its successor agencies, the U.S. Energy Research and Development… …
65Air Force reports on the Roswell UFO incident — The two Air Force reports on the Roswell UFO incident, published in 1994/5 and 1997, form the basis for much of the skeptical explanation for the 1947 incident, the purported recovery of aliens and their craft from the vicinity of Roswell, New… …
66TOPAZ nuclear reactor — The TOPAZ nuclear reactor is a lightweight nuclear reactor developed for long term space use by the Soviet Union. Cooled by liquid metal, it uses a high temperature moderator containing hydrogen and highly enriched fuel and produces electricity… …
67Hawker Hurricane variants — The Hawker Hurricane was a British single seat fighter aircraft designed and predominantly built by Hawker Aircraft Ltd. Some versions were built in Canada by the Canada Car and Foundry Co Ltdflagicon|United Kingdom British VariantsHurricane Mk I …
68Juniper Island Light — Infobox Lighthouse caption = the station in 1916 (USCG) location = on Juniper Island on Lake Champlain, west of Burlington, Vermont coordinates = coord|44.4500|N|73.2763|W|type:landmark yearbuilt = 1826 (first tower) 1846 (current tower) yearlit …
69Crackle tube — A small battery powered Luminglas device, turned on. A small battery powered Luminglas device, turned …
70mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
