What Johannes Kepler discovered?
Motor cycle
Telephone
How the planets move
Wave nature of light
Who invented Gravity?
Gabriel Fahrenheit
Andres Celsius
Issac Newton
Claudius Ptolemy
Who invented Telephone?
J. Walter Hunt
John Logie Baird
Alexander Graham Bell
Wright Brothers
Who discovered X-rays?
Wilhelm Roentgen
Thomas Young
Benjamin Franklin
John Dalton
What Galileo Galilei discovered?
How objects fall
How things float
Moon of Jupiter
Earth's magnetism
Who among the following invented the tape recorder?
Samuel Colt
Karl Benz
Valdemar Paulsen
What John Dunlop invented?
Phonograph
Revolver
Pneumatic tyre
Nuclear reactor
Which scientist discovered radium?
William Gilbert
Pierre and Marie Curie
What Nicolaus Copernicus invented?
Sun centred solar system
Atomic theory
The nature of lighting
Aeroplane
Inventor of aeroplane.
Robert Hooke
Willis Carrier
Roger Bacon