দশ পর্বের এই সিরিজের দ্বিতীয় পর্বে আলোচনা করা হয়েছে চাঁদের ভর, আয়তন, ঘনত্ব, পৃথিবী থেকে চাঁদের দূরত্ব, চাঁদের গতি, চাঁদের তিথি সম্পর্কে।
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Cinderella’s Feet
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A Fairy-Tale Mystery Nobody Thought to Investigate “Bhaiya, did Cinderella have some serious problem with her feet ?” I looked at Otho...
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