What was the contribution of James Watt?
What was the contribution of Gottlieb Daimler?
What was invented by Johannes Guttenberg?
What was invented by Michael Faraday?
What was invented/discovered by Alessandro Volta?
What was invented by Alexander Graham Bell?
What was invented by Anders Celsius?
What is NOT the contribution of Isaac Newton?
Who invented lightning rod and explained the origin of the lightning?
Was Alfred Nobel awarded the Nobel prize?
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