Teacher Ki Duniya

पेड़   लगाए हर इन्सान , माँ वसंधुरा देती वरदान. वृक्ष फ़ेलाते हे हरयाली , जीवन   में लाते खुशाली. जहां   हरयाली हे , वही खुशाली हे. धरती पर स्वर्ग हे वहा , हरे भरे वृक्ष   हे जहा .

What Is A Superconductor? A superconductor is a material that can conduct electricity or transport electrons from one atom to another with no resistance. This means no heat, sound or any other form of energy would be released from the material when it has reached "critical temperature" (Tc), or the temperature at which the material becomes superconductive. Unfortunately, most materials must be in an extremely low energy state (very cold) in order to become superconductive. Research is underway to develop compounds that become superconductive at higher temperatures. Currently, an excessive amount of energy must be used in the cooling process making superconductors inefficient and uneconomical.

WHAT IS SOIL? Soils are complex mixtures of minerals, water, air, organic matter, and countless organisms that are the decaying remains of once-living things. It forms at the surface of land – it is the “skin of the earth.” Soil is capable of supporting plant life and is vital to life on earth. chances are that you haven't thought a lot about the soil under your feet, but you may be surprised at the complexity of soil. Soil varies in its composition and the structure of its particles, and these factors are closely examined by farmers, who need appropriate soil for planting crops, as well as engineers who may need to understand how soil is going to hold up under different demands. Soil is also vitally important to the sustainability of an ecosystem because it serves as the natural medium for the growth of vegetation. In this lesson, you will discover just what soil is and which factors are looked at when determining the structure and the types of soil. So what exactly is s...

The primary sector The primary sector of the economy is the sector of an economy making direct use of natural resources. This includes agriculture, forestry, fishing and mining. This is contrasted with the secondary sector, producing manufactured goods, and the tertiary sector, producing services. The primary sector is usually most important in less developed countries, and typically less important in industrial countries. The manufacturing industries that aggregate, pack, package, purify or process the raw materials close to the primary producers are normally considered part of this sector, especially if the raw material is unsuitable for sale or difficult to transport long distances.[1] Primary industry is a larger sector in developing countries; for instance, animal husbandry is more common in Africa than in Japan.[2] Mining in 19th century South Walesis a case study of how an economy can come to rely on one form of business.[3] Canada is unusual among developed countrie...

Charles Correa Charles Mark Correa was born on 1 September 1930, in   Secunderabad ,. [2] [3] Correa began his higher studies at   St. Xavier's College, Mumbai   at the University of Bombay (now Mumbai), and he went on to study at the   University of Michigan   at Ann Arbor (1949–53) and the   Massachusetts Institute of Technology   (MIT) in Cambridge, Massachusetts (1953–55). In 1958 he established his own Mumbai-based professional practice. [4] Charles Correa is currently working on several projects worthy of note. Of particular significance is the new   Ismaili Centre   in Toronto, Canada that is to be located in the midst of formal gardens and surrounded by a large park designed by landscape architect   Vladimir Djurovic . It will share the site with the   Fumihiko Maki   designed   Aga Khan Museum . [10] A project that has recently been completed is The Champalimaud Foundation Centre in Lisbon which was i...