wide-angle reflection measurements
51Secondary surveillance radar — SSR antenna of Deutsche Flugsicherung at Neubrandenburg, in Mecklenburg/Western Pomerania Secondary surveillance radar (SSR)[1] is a radar system used in air traffic control (ATC), that not only detects an …
52Neutron reflectometry — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …
53Neutron Reflectometry — is a laboratory technique for measuring the structure of thin films, similar to the often complementary techniques of X ray reflectivity and ellipsometry. The technique provides valuable information over a wide variety of scientific and… …
54Doppler radar — Doppler effect A Doppler radar is a specialized radar that makes use of the Doppler effect to produce velocity data about objects at a distance. It does this by beaming a microwave signal towards a desired target and listening for its reflection …
55Ionosphere — The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner …
56Magnetometer — A magnetometer is a measuring instrument used to measure the strength or direction of a magnetic field either produced in the laboratory or existing in nature. Some countries such as the USA, Canada and Australia classify the more sensitive… …
57undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… …
58Moon — This article is about Earth s Moon. For moons in general, see Natural satellite. For other uses, see Moon (disambiguation) …
59Crystallographic database — A crystallographic database is a database specifically designed to store information about crystals and crystal structures. Crystals are solids having, in all three dimensions of space, a regularly repeating arrangement of atoms, ions, or… …
60Radiolocation — is the process of finding the location of something through the use of radio waves. It generally refers to passive uses, particularly radar mdash; as well as detecting buried cables, water mains, and other public utilities. It is similar to… …
