India's first multi-wavelength observatory ASTROSAT was launched on Sept 28, 2015 from the first launch pad of Satish Dhawan Space Centre at Shriharikota, Andhra Pradesh at 10 am by Polar Satellite launch vehicle (PSLV- C30). The satellite weighed 1513kg is launched into a 650km (around 404miles) orbit inclined at an angle of 6° to the equator. It is launched with a life-time of five years. Total cost of the project was approximately 180 Cr.
Organic farming and its importance
Organic farming is a form of agriculture that relies on techniques such as crop rotation, green manure, compost, and biological pest control. Organic agriculture is an ecological production management system that promotes and enhances biodiversity, biological cycles and soil biological activity. Organic farming is involved with the natural methods like crop rotation, biological pest control, compost etc. It is based on minimal use of off-farm inputs and on management practices that restore...
Manufacturing Process of Polyester filament Yarn
The polymer is made by heating teraphthalic acid with excess of ethylene glycol (Both of high priority) in an atmosphere of nitrogen initially at atmospheric pressure. A catalyst like hydrochloric acid speeds up the reaction.
The resulting low molecular weight ethylene glycol teraphthalate is then heated at 280 deg C for 30 minutes at atmospheric pressure and then for 10 hours under vacuum. The excess of ethylene glycol is distilled off. the ester can polymerise now to form a product of high molecular weight.
TSI Essay Contest winning enrty – How technology has changed our lives
When we talk about technology the first thought which arrives in our mind is a scene of advanced electronic devices with a specific function to perform efficiently. Of course,there is no doubt that technology is everywhere. It has a huge influence in our daily lives. It plays a crucial role as these days we are whole and sole dependent on technology. Technology has become a vital part of our life. The development of a country depends on status of its technology.
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