What John Dunlop invented?
Phonograph
Revolver
Pneumatic tyre
Nuclear reactor
Inventor of hovercraft.
Christopher Cockerell
Roger Bacon
Charles Babbage
Marie Curie
What Nicolaus Copernicus invented?
Sun centred solar system
Atomic theory
The nature of lighting
Aeroplane
Inventor of motorcycle.
James Watt
Walter Hunt
Sylvester Howard Roper
Who invented the wave nature of light?
Andres Celsius
Archimedes
Thomas Young
Galilieo Galilei
Who invented sewing machine?
Enrico Fermi
Samuel Colt
Valdemar Paulsen
J. Walter Hunt
Who invented Gravity?
Gabriel Fahrenheit
Issac Newton
Claudius Ptolemy
Who invented Earth's magnestism?
Karl Benz
Galileo Galilei
Pierre Ptolemy
William Gilbert
What Nicolaus August Otto invented?
Tape recorder
Petrol engine
Hovercraft
Hot air balloon
What Galileo Galilei discovered?
How objects fall
How things float
Moon of Jupiter
Earth's magnetism
