zero-center meter
101Passive solar building design — Elements of passive solar design, shown in a direct gain application …
102Electromagnet — An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current is turned off. Electromagnets are widely used as components of other electrical devices,… …
103Stratospheric Observatory for Infrared Astronomy — Infobox Observatory name = SOFIA caption = The 747SP, which now serves as NASA s SOFIA, on a test flight in 1997. Still mostly in United Airlines livery, a black square was painted on the aft fuselage to indicate the area that would house the… …
104Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… …
105Taxicabs of the United States — Throughout the United States there is a mature system of taxicabs. Most US cities have a licensing scheme which restricts the number of taxicabs allowed. These are sometimes called medallions or CPNC (Certificate of Public Necessity and… …
106Hybrid electric vehicle — The Toyota Prius is the world s top selling hybrid car, with cumulative global sales of 2.36 million units by August 2011.[1] A hybrid electric vehicle (HEV) is a type of hybrid vehicle and electric vehicle which combines a conventional internal …
107Burj Khalifa — Burj Khalifa …
108Iridium — (pronEng|ɪˈrɪdiəm) is a chemical element that has the symbol Ir and atomic number 77. A very hard, brittle, silvery white transition metal of the platinum family, iridium is the second densest element and is the most corrosion resistant metal,… …
109Uranus — This article is about the planet. For other uses, see Uranus (disambiguation). Uranus   …
110Metrology — This article is about the science of measurement. For the study of weather see Meteorology. A scientist stands in front of a microarcsecond (1 millionth of 1 arcsecond or 1 millionth of 1/3600 degree) testbed. Metrology is the science of… …
