Inventions and Discoveries

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56. Who invented the first practical camera?
a) George Eastman
b) Louis Daguerre
c) William Henry Fox Talbot
d) Thomas Wedgwood

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57. Who discovered the circulation of blood?
a) William Harvey
b) Robert Boyle
c) Andreas Vesalius
d) Joseph Lister

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a) Igor Sikorsky
b) Leonardo da Vinci
c) Frank Piasecki
d) Juan de la Cierva
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59. Who discovered the laws of motion?
a) Isaac Newton
b) Galileo Galilei
c) Albert Einstein
d) Stephen Hawking

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60. Who invented the steam engine?
a) James Watt
b) Thomas Newcomen
c) George Stephenson
d) Richard Trevithick

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