Aavishkaar evam khoj(Hindi, Paperback, Khatri Vikas)
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kaaphee soch vichaar karane ke baad hamane vigyaan ke kuchh chune hue kuchh sevaneeshents ke saath-saath khaady padaarthaaen aur saamaajik aavashyakataon se jude mahattvapoorn upachaar jaise - eks-re, maeekro kemikal avan, pijja, bargar, poteto chips, tai� phik laeet, jel, aadi. tadibiyar aadi ke avinaashakon kee kahaanee bade hee aakarshak andaaj men chitronen sahit prastut kee gaee hai. prastut pustak chhaatron aur aam lekhon ke gyaan mein vrddhi karane ke saath-saath unhen tejasveekaran aur vigyaan ke prati utsaahit karatee hai. pramukh visheshshataen- �vaigyaanik utthaan �khaady suraksha �khel sambandhee abhibhaashan
