Ragita Academy

                                           Aqua rezia Formula: HNO 3 +3HCL Boiling point:  108 °C Melting point:  -42 °C Density:  1.21 g/cm³ NFPA 704 (fire diamond):  0 3 0OX Solubility in water:  Miscible Appearance:  Red, yellow or gold fuming liquid INVENTED BY:  Jabir Bin Hayyan Aqua Regia Definition Aqua regia is a mixture of  hydrochloric acid  (HCl) and  nitric acid  (HNO 3 ) at a ratio of either 3:1 or 4:1. It is a reddish-orange or yellowish-orange fuming liquid. The term is a Latin phrase, meaning "king's water". The name reflects the ability of aqua regia to dissolve  the noble metals  gold, platinum, and palladium. Note aqua regia will not dissolve all noble metals. For example, iridium and tantalum are not dissolved. Also Known As:  Aqua regia is ...

                                     Amazon Forest                                             The Amazon is a vast region that spans across eight rapidly developing countries: Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guyana, Suriname and French Guiana, an overseas territory of France. The landscape contains: ·          One in ten known species on Earth ·          1.4 billion acres of dense forests, half of the planet's remaining tropical forests ·          4,100 miles of winding rivers ·          2.6 million square miles in the Amazon basin, about 40% of South America There is a clear link betwee...

             Himalaya The  Himalayas  constitutes an imposing crescent-shaped mountain range extending for over 2500  km from the south of the Indus Valley beyond Nanga Parbat in the west to Namcha Barwa in the east . The range varies in width from 350 km in the west to 150 km in the east. The majestic mountain chain showing prominent southward convexity stands like a wall bordering the entire northern margin of the Indian Subcontinent. Himalayas, Nepali Himalaya, great mountain system of Asia forming a barrier between th Plateau of tibet to the north and the alluvial plains of the Indian subcontinent to the south. The Himalayas include the highest mountains in the world, with more than 110 peaks rising to elevations of 24,000 feet (7,300 metres) or more above sea level. One of those peaks is Mount Everest (Tibetan: Chomolungma; Chinese: Qomolangma Feng; Nepali: Sagarmatha), the world’s highes...

                                  Super Computers                                              Super Computers            Supercomputers have certain distinguishing features. Unlike conventional computers, they usually have more than one CPU (central processing unit), which contains circuits for interpreting program instructions and executing arithmetic and logic operations in proper sequence. The use of several CPUs to achieve high computational rates is necessitated by the physical limits of circuit technology. Electronic signals cannot travel faster than the speed of light, which thus  constitutes  a fundamental speed limit for signal transmission and circuit switching. This limit has almost been reached,...

                                                    Robots A  robot is a machine—especially one programmable by a computer— capable of carrying out a complex series of actions automatically. Robots can be guided by an external control device or the control may be embedded within. Robots may be constructed on the lines of human form, but most robots are machines designed to perform a task with no regard to their aesthetics. Robots can be autonomous or semi-autonomous and range from humanoids such as Honda's Advanced Step in Innovative Mobility (ASIMO) and TOSY's TOSY Ping Pong Playing Robot (TOPIO) to industrial robots, medical operating robots, patient assist robots, dog therapy robots, collectively programmed swarm robots, UAV drones...

                           ARTIFICIAL INTELLIGENCE In   computer science , artificial intelligence (AI), sometimes called machine intelligence, is intelligence demonstrated by machines, in contrast to the natural intelligence displayed by  humans  and animals. Leading AI textbooks define the field as the study of "intelligent agents": any device that perceives its environment and takes actions that maximize its chance of successfully achieving its goals. Colloquially, the term "artificial intelligence" is often used to describe machines (or computers) that mimic "cognitive" functions that humans associate with the   human mind , such as "learning" and "problem solving". As machines become increasingly capable, tasks considered to require "intelligence" are often removed from the definition of AI, a phenomenon known as the   AI effec...