Who invented Braille script?
Who invented Aeroplane ?
Who invented Bicycle ?
Which scientist discovered the radioactive element radium?
Isaac Newton
Albert Einstein
Benjamin Franklin
Marie Curie
Who invented Television ?
Theory of evolution was presented by ?
What James Watt invented?
Diving bell
Steam boat
Hot air balloon
Rotary steam engine
Roentgen invented:
When was the first elevator built?
1743
1739
1760
1785
