WORLD HISTORY

Detailed explanation-1: -He introduced interchangeable parts. These were parts that were exactly alike and could be substituted for each other. This made it made it possible for unskilled workers to make uniform parts which would could be produced in large numbers.

Detailed explanation-2: -BY. By interchangeable manufacture we mean the production of complete machines or mechanisms, the corresponding parts of which are so nearly alike that they will fit into any of the given mechanisms.

Detailed explanation-3: -With the creation of identical, interchangeable parts, unskilled workers could find employment in factories, the production of goods could be greatly increased, and repair and replacement of parts became much easier.

Detailed explanation-4: -The idea of interchangeability goes back to Gutenberg’s invention of precision type. Clock-makers had started making certain parts interchangeable in the 18th century. And Americans like to credit Eli Whitney with inventing the idea in 1803 to make muskets.