Inventions and Discoveries

76. Who invented the first practical camera?
a) Louis Daguerre
b) William Henry Fox Talbot
c) George Eastman
d) Johannes Kepler

77. Who discovered the law of electromagnetic induction?
a) Michael Faraday
b) James Clerk Maxwell
c) Heinrich Hertz
d) Thomas Edison

78. Who invented the first successful airplane engine?
a) Charles Rolls
b) Henry Royce
c) Wright Brothers
d) Rudolf Diesel

79. Who discovered the circulation of blood?
a) William Harvey
b) Edward Jenner
c) Louis Pasteur
d) Robert Koch

80. Who invented the first practical battery?
a) Alessandro Volta
b) Michael Faraday
c) Benjamin Franklin
d) Galileo Galilei