Who invented bicycle ?
Dunlop
Macmillan
Waterman
Wright brothers
What did James Watt invent?
Diving bell
Steam boat
Hot air balloon
Rotary steam engine
Who invented radio?
Marconi
Torricelli
Gutenberg
Edison
Rajasthan
Who invented penicillin ?
Ronald Ross
Charles Darwin
Alexander Fleming
Who invented fountain pen?
Graham bell
Gillette
Roentgen invented:
Telephone
X -ray machine
Tyre
Aeroplane
Who invented aeroplane ?
Orville Wright and Wilbur Wright
Dun lop