आविष्कार - आविष्कारक
- Barometre - E. Torseli
- Computer - C. Babage
- Car - Carl Benz
- Dynamo - M. Faradey
- Glider - George Kaile
- Gramophone - Adission
- Safty Pin - James Watt
- Cement - J. Aurgdeen
- Electric Fan - Wheelar
- Helicopter - E.R. Mumford
- Microphone - Graham Bell
- Motor Cycle - G.Damlar
- Paturisation - Luis pasture
- Lift - E. Otis
- Solar System - Copernicus
- Scooter - G. Bradsaw
- Atom - John Dolton
- Radio Activity - H. Bekral
- Raman Effect - C.V. Raman
- Microscope - Z. Jhonson
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