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If Johannes Gutenberg hadn´t invented the priting press, education and books would have been more expensive.
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If Zacharias Janssen hadn´t invented the microscope, humanity couldn`t have made so many advances in genetics.
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If Hans and Zacharias Jansen Lippershey hadn`t invented the telescope based on Galileo, humanity couldn´t have known the wonders of the universe.
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If James Watt hadn`t invented the steam engine, humanity wouldn`t have reached a great economic development.
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If Thomas Edison hadn`t invented Incandescent Light Bulb, humanity wouldn´t have had computers.
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if Wilhelm Conrad Rontgen hadn`t invented the x-rays, doctors wouldn´t have detected several diseases.
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If Alexander Fleming hadn`t invented penicillin, medicine wouldn`t have fought the diseases caused by microorganisms.
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If Von Braun hadn`t invented the skyrocket, the man wouldn`t have been in the moon.
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If Oppenheimer hadn`t invented the atomic bomb, USA wouldn`t have bombed Hiroshima and Nagasaki.
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If Lawrence Roberts hadn`t invented the internet, millions of people wouldn`t have had easy access to information and communication.
