thermal electron emission)
31Microchannel plate detector — from the Daresbury Recoil Separator A micro channel plate (MCP) is a planar component used for detection of particles (electrons or ions) and impinging radiation (ultraviolet radiation and X rays). It is closely related to an electron multiplier …
32Low-energy ion scattering — LEIS redirects here; for the Hawaiian garland see Lei (Hawaii). Low energy ion scattering spectroscopy (LEIS), sometimes referred to simply as ion scattering spectroscopy (ISS), is a surface sensitive analytical technique used to characterize the …
33Potassium-argon dating — or K Ar dating is a radiometric dating method used in geochronology and archeology. It is based on measuring the products of the radioactive decay of potassium (K), which is a common element found in materials such as micas, clay minerals, tephra …
34List of unsolved problems in physics — This is a list of some of the major unsolved problems in physics. Some of these problems are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. The others are… …
35Gas tungsten arc welding — TIG welding of a bronze sculpture Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG …
36Nikola Tesla — Tesla, aged 37, 1893, photo by Sar …
37Langmuir, Irving — born Jan. 31, 1881, Brooklyn, N.Y., N.Y., U.S. died Aug. 16, 1957, Falmouth, Mass. U.S. physical chemist. He received a Ph.D. from the University of Göttingen, Ger. As a researcher for General Electric (1909–50), he investigated electrical… …
38явление электрической дуги — [Интент] Параллельные тексты EN RU Electric arc phenomenon The electric arc is a phenomenon which takes place as a consequence of a discharge which occurs when the voltage between two points exceeds the insulating strength limit of the interposed …
39tungsten processing — Introduction preparation of the ore for use in various products. Tungsten exhibits a body centred cubic (bcc) crystal lattice. It has the highest melting point of all metals, 3,410° C (6,170° F), and it has high conductivity for… …
40J. A. Panitz — is the co inventor of the Atom Probe Field Ion Microscope [cite journal|last=Müller|first=Erwin W.|authorlink=Erwin Müller|coauthors=John A. Panitz, S. Brooks McLane|year=1968|title=The Atom Probe Field Ion Microscope|journal=Review of Scientific …
