History 04 Lesson 150

The Parachute-

Who invented it? Louis-Sebastian Lenormand. When was it invented? 1783. Where was it invented? France. How does it work? When falling a parachute creates air resistance and the air resistance and gravity cancel each other out. Why is it important? Because people don’t die after jumping out of a plane.

Selective breeding-

Who invented it? Robert Bakewell. When was it invented? 18th century Where was it invented? Near East. How does it work? When two parents with particular characteristics to breed together and produce offspring with more desirable characteristics. Why is it important? So, people can make strong animals.


Who invented it? Michael Faraday. When was it invented? 1800. Where was it invented? St. Louis. How does it work? Electrolysis is the process by which iconic substances are decomposed into simpler substances when an electric current is passed through them. Why is it important? It can separate elements from naturally occurring sources, such as ores, using an elechrolytic cell.

Threshing Machine-

Who invented it? Andrew Meikle. When was it invented? 1786. Where was it invented? Great Britain. How does it work? It beats the wheat to make the seeds fall out. Why is it important? So more people can eat.

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