When was barb wire patented?
1873
1840
1895
1900
Theory of evolution was presented by ?
When was the first elevator built?
1743
1739
1760
1785
Who invented Braille script?
Who invented Bicycle ?
Who is the English physicist responsible for the 'Big Bang Theory'?
Albert Einstein
Michael Skube
George Gamow
Roger Penrose
What Galileo invented?
Barometer
Pendulum clock
Microscope
Thermometer
Who invented Television ?
What J. B. Dunlop invented?
Pneumatic rubber tire
Automobile wheel rim
Rubber boot
Model airplanes
