GK Questions - Important Inventions
7. Who invented Locomotive ?
George Stephenson was first to buit steam locomotives.
9. Who invented Machine Gun ?
Helge Palmcrantz, Swedish inventor and industrialist
17. Who invented Vitamin D ?
Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922
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m.sai krishna 6 years ago
i want world all g.k bits in pdf
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ANAND 7 years ago
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ilakkiya manickam 8 years ago
who invented Chocolates???
pls ans.............
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Manoj Chamala 8 years ago
hey answers were wrong please check it...dnt misguide the people
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MR 007 8 years ago
Who invented helicopter is wrong
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janani 8 years ago
really really sooooooooooooo useful...thank u so much Mastguru team