Who invented revolver?
John Logie Baird
Samuel Colt
Valdemar Paulsen
Karl Benz
Who among the following invented the tape recorder?
Inventor of hovercraft.
Christopher Cockerell
Roger Bacon
Charles Babbage
Marie Curie
Who invented the wave nature of light?
Andres Celsius
Archimedes
Thomas Young
Galilieo Galilei
Who invented Gravity?
Gabriel Fahrenheit
Issac Newton
Claudius Ptolemy
Who invented Atomic theory?
John Dalton
Nicolaus Copernicus
What Johannes Kepler discovered?
Motor cycle
Telephone
How the planets move
Wave nature of light
What Nicolaus August Otto invented?
Tape recorder
Petrol engine
Hovercraft
Hot air balloon
What Thomas Alva invented?
Phonograph
Revolver
Nuclear reactor
Motion pictures
Inventor of aeroplane.
Robert Hooke
Willis Carrier
Wright Brothers