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इलेक्ट्रिक बल्ब के अविष्कार की कहानी || किसने किया बल्ब का आविष्कार ? History of light bulb in hindi
00:10:13
इलेक्ट्रिक बल्ब के अविष्कार की कहानी || किसने किया बल्ब का आविष्कार ? History of light bulb in hindi

107 views

4 years ago

कागज़ का आविष्कार किसने किया ? History of Paper in Hindi | Invention of Paper
00:06:32
कागज़ का आविष्कार किसने किया ? History of Paper in Hindi | Invention of Paper

126 views

4 years ago

पहिये के आविष्कार से जुड़ी रोचक कहानी | History of Wheel in Hindi | How was Wheel Invented?
00:06:54
पहिये के आविष्कार से जुड़ी रोचक कहानी | History of Wheel in Hindi | How was Wheel Invented?

1,123 views

4 years ago

History of Electricity | Who Won AC Vs DC War ? Interesting Story about innovation of Electricity
00:15:06
History of Electricity | Who Won AC Vs DC War ? Interesting Story about innovation of Electricity

127 views

5 years ago

History of Battery | Interesting stories and facts about invention of battery
00:18:03
History of Battery | Interesting stories and facts about invention of battery

5,754 views

5 years ago