|দাদুর চশমা (Dadur Chashma Grandpa’s Glasses Yurmin)|
|Original Title||দাদুর চশমা (Dadur Chashma Grandpa’s Glasses Yurmin)|
|Author||জর্জি ইয়ুরমিন (Georgi Yurmin)|
|Topics||children’s book, raduga, soviet, popular science, glasses, telescopes, microscopes, periscopes, lenses, spectacles, optics|
|Support||Mobile, Desktop, Tablet|
|Scan Quality:||Best No watermark|
In this book grandpa to a curious child explains different optical instruments and their uses. We come to know about lenses, spectacles, magnifying glasses, telescopes, microscopes, binoculars and periscopes.
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