Interchangeable Parts: This is another significant contribution by Eli Whitney. He proposed making standardized parts that could be used interchangeably in machinery repair – this concept played a crucial role in industrialization.
Patent Law: After inventing his cotton gin, Whitney faced many legal battles over patent rights. These experiences highlight early issues with U.S patent law enforcement.
Southern Economy: As mentioned earlier, Whitney's invention significantly impacted Southern economy by making cotton farming more profitable thus intensifying reliance on slave labor.