Inventions and Discoveries


66. Who invented the first airplane?
a) Orville and Wilbur Wright
b) Gustave Whitehead
c) Samuel Pierpont Langley
d) Alberto Santos-Dumont

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67. Who discovered the X-ray?
a) Wilhelm Conrad Roentgen
b) Max Planck
c) Marie Curie
d) Ernest Rutherford

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68. Who invented the light bulb?
a) Thomas Edison
b) Joseph Swan
c) Humphry Davy
d) Nikola Tesla

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69. Who discovered the process of pasteurization?
a) Louis Pasteur
b) Robert Koch
c) Paul Ehrlich
d) Gerhard Domagk

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70. Who invented the telephone exchange?
a) Tivadar Puskás
b) Elisha Gray
c) Alexander Graham Bell
d) Thomas Edison

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