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HYDROPONICS

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                                                                HYDROPONICS By-Sanket Kumar Sahu Brahmapur,Odisha Hydroponics  is a subset of H ydroculture , which is a method of growing  plants  without  soil  by using mineral  nutrient   solutions  in a water solvent. Terrestrial plants  may be grown with only their  roots  exposed to the mineral solution, or the roots may be supported by an inert medium, such as  perlite  or  gravel . TYPES OF HYDROPONICS SYSTEM There are two main variations for each medium, sub-irrigation and top irrigation. For all techniques, most hydroponic reservoirs are now built of plastic, but other materials have been used including concrete, glass, metal, vegetable solids, and wood. The containers should exclude light to prevent algae growth in the nutrient solution. Hydroponic systems are characterized as active or passive. An active hydroponic system actively moves the nutrient solution, usually using a pump. Passive hydroponi

THE LOST CITY OF ATLANTIS

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                                                  THE LOST CITY OF ATLANTIS By-Sanket Kumar Sahu Brahmapur,Odisha The world is full of unsolved mysteries. Despite of the great achievements in the field of science, we, the human beings remain clueless about many things around us.  Rather than the land we live, what seems stranger to us is the ocean, which is home to many myths, legends and mysteries. While scientists have succeeded in explaining many of these mysteries, there are quite a few still remaining as unexplained. Lost cities, hidden treasures, mystic ships are all part of the alluring marine world. Of all these, the lost city of Atlantis tops the list. We have all heard of Atlantis, the legendary Island that sank into the sea in a single day and night. But who came up with it, was Atlantis a real place, and is there more to the story than this? We get the story of Atlantis from the Greek Philosopher Plato. Really, from two of his writings,  Timaeus  and  Cr