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81Skin effect — Skin depth redirects here. For the depth (layers) of biological/organic skin, see skin. Skin effect is the tendency of an alternating electric current (AC) to distribute itself within a conductor with the current density being largest near the… …
82Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …
83Antony Hewish — Infobox Scientist name = Antony Hewish image width = 150px caption = Antony Hewish birth date = May 11, 1924 (age 84) nationality = United Kingdom field = Radio astronomy known for = Pulsars religion = Christian prizes = Nobel Prize for Physics… …
84Le Sage's theory of gravitation — is the most common name for the kinetic theory of gravity originally proposed by Nicolas Fatio de Duillier in 1690 and later by Georges Louis Le Sage in 1748. The theory proposed a mechanical explanation for Newton s gravitational force in terms… …
85Neutron diffraction — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …
86Project Orion (nuclear propulsion) — An artist s conception of the NASA reference design for the Project Orion spacecraft powered by nuclear propulsion. Project Orion was a study of a spacecraft intended to be directly propelled by a series of explosions of atomic bombs behind the… …
87Kīlauea — For the town of Kilauea on Kauai, see Kilauea, Hawaii. Kīlauea The Pu u O o cone, a subsidiary volcano of Kilauea. An ash column in the background rises from the peak of Kilauea. The volcano behind the ash column is Mauna Loa, which is separate… …
88Wrist drop — Infobox Disease Name = PAGENAME Caption = The suprascapular, axillary, and radial nerves. Width = 150 DiseasesDB = ICD10 = ICD10|M|21|3|m|20 ICD9 = ICD9|736.05 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = Wrist drop, also …
89Lochner v. New York — Lochner redirects here. For the German painter Stefan Lochner, see Stefan Lochner. Lochner v. New York Supreme Court of the United States …
90Sciatica — Infobox Disease Name = Sciatica Caption = Left gluteal region, showing surface markings for arteries and sciatic nerve. DiseasesDB = ICD10 = ICD10|M|54|3|m|50 ICD10|M|54|4|m|50 ICD9 = ICD9|724.3 ICDO = OMIM = MedlinePlus = eMedicineSubj = emerg… …
