What mechanical function distinguished the Spinning Jenny created by James Hargreaves in 1764?
Answer
Spinning multiple threads simultaneously
The Spinning Jenny, developed by James Hargreaves, was designed to allow a single operator to spin multiple threads at once, typically starting with eight to twelve. This invention was crucial because it bridged the gap between traditional cottage-based spinning and the high-output factory power systems, helping to resolve the shortage of yarn needed for mechanized looms.

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