cubic meter
61Water supply and sanitation in India — continue to be inadequate, despite longstanding efforts by the various levels of government and communities at improving coverage. The situation is particularly inadequate for sanitation, since only one of three Indians has access to improved… …
62Concrete — This article is about the construction material. For other uses, see Concrete (disambiguation). Outer view of the Roman Pantheon, still the largest unreinforced solid concrete dome.[1] …
63Lagrangian — This article is about Lagrange mechanics. For other uses, see Lagrangian (disambiguation). The Lagrangian, L, of a dynamical system is a function that summarizes the dynamics of the system. It is named after Joseph Louis Lagrange. The concept of… …
64Maxwell's equations — For thermodynamic relations, see Maxwell relations. Electromagnetism …
65Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …
66Core rope memory — test sample from the Apollo Program. Core rope memory is a form of read only memory (ROM) for computers, first used by early NASA Mars probes and then in the Apollo Guidance Computer (AGC) designed and programmed by the MIT Instrumentation La …
67Overpopulation — Graph of human population from 10,000 BC–2000 AD showing the unprecedented population growth since the 19th century Overpopulation is a condition where an organism s numbers exceed the carrying capacity of its habitat. The term often refers to… …
68Water crisis — For other uses, see Water crisis (disambiguation). Deforestation of the Madagascar Highland Plateau has led to extensive siltation and unstable flows of western rivers. Water crisis is a general term used to describe a situation where the… …
69Riñihuazo — The Riñihuazo is the name given to the damming of Riñihue Lake on 22 May 1960, after a landslide caused by the Great Chilean Earthquake blocked its outflow. According to the chronicler Mariño de Lobera a similar event occurred after the 1575… …
70Natural gas reserves in Iran — Iran Gas Fields Location Map …
