displacement of optic
71Sulfuric acid — Sulfuric acid …
72Wave — A wave is a disturbance that propagates through space and time, usually with transference of energy. While a mechanical wave exists in a medium (which on deformation is capable of producing elastic restoring forces), waves of electromagnetic… …
73Ferroelectricity — is a property of certain materials which possess a spontaneous electric polarization that can be reversed by the application of an external electric field.[1][2] The term is used in analogy to ferromagnetism, in which a material exhibits a… …
74T-symmetry — is the symmetry of physical laws under a time reversal transformation mdash;: T: t mapsto t.Although in restricted contexts one may find this symmetry, the universe itself does not show symmetry under time reversal. This is due to the uncertainty …
75Growth hormone — HGH redirects here. For other uses, see HGH (disambiguation). Growth hormone 1 Growth hormone Identifiers Symbol GH1 …
76Gulf War — This article is about the war in 1990/91. For other wars of that name, see Persian Gulf War (disambiguation). Operation Desert Storm redirects here. For the video game, see Operation: Desert Storm (video game). Gulf War …
77USS Memphis (SSN-691) — USS Memphis (SSN 691), a Los Angeles class submarine, was the sixth ship of the United States Navy to be named for Memphis, Tennessee. The contract to build her was awarded to Newport News Shipbuilding and Dry Dock Company in Newport News,… …
78USS Jimmy Carter (SSN-23) — USS Jimmy Carter (SSN 23), the third and last Seawolf class submarine, is the first ship of the United States Navy to be named for former President Jimmy Carter, who served in the US Navy as a Communications Officer, Sonar Officer, Electronics… …
792000 in India — See also: 1999 in India, other events of 2000, 2001 in India and the Timeline of Indian history. EventsJanuary*3 January A landmine explodes in a busy vegetable market in the heart of Indian ruled Kashmir, killing 15 people; other border… …
80Queen Elizabeth class aircraft carrier — The Queen Elizabeth class aircraft carriers (formerly the Carrier Vessel Future (CVF) project) are a two ship class of aircraft carrier being developed for the Royal Navy. HMS Queen Elizabeth is expected to enter service in 2014, HMS Prince of… …
