Theoretically
61Mikhail Khodorkovsky — Khodorkovsky in 2001 Born 26 June 1963 (1963 06 26) (age 48) Moscow, Soviet Union Nationality …
62Project 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… …
63Culture of South Africa — South Africa is known for its ethnic and cultural diversity. Therefore, there is no single culture of South Africa. Zulus in Natal …
64Mass–energy equivalence — E=MC2 redirects here. For other uses, see E=MC2 (disambiguation). 4 meter tall sculpture of Einstein s 1905 E = mc2 formula at the 2006 Walk of Ideas, Berlin, Germany In physics, mass–energy equivalence is the concept that the …
65Royal and noble ranks — Emperor Empress King Queen Viceroy Vicereine …
66Pressure vessel — Vertical pressure vessels installed in a structure A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. The pressure differential is dangerous and many fatal… …
67Page replacement algorithm — This article is about algorithms specific to paging. For outline of general cache algorithms (e.g. processor, disk, database, web), see Cache algorithms. In a computer operating system that uses paging for virtual memory management, page… …
68Sound reinforcement system — A sound reinforcement system is an arrangement of microphones, electronic signal processors, amplifiers, and loudspeakers that makes live or pre recorded sounds usually music or speech louder, or that distributes the sound to a larger or more… …
69Dark galaxy — A dark galaxy is a hypothetical galaxy composed of dark matter.[1] Dark galaxies receive their name because they have no detectable stars and are theoretically invisible. An influential community of scientists conjecture the existence of dark… …
70Stretched tuning — is a detail of musical tuning, applied to wire stringed musical instruments, older, non digital electric pianos (such as the Fender Rhodes piano and Wurlitzer electric piano), and sample based synthesizers based on these instruments, to… …
