Industrial revolution began when the WHEEL was invented thousands of years ago. Human mobility and productivity sky rocketed using wheels.
**Industrial revolution began when the WHEEL was invented thousands of years ago. Human mobility and productivity sky rocketed using wheels.**
But those wheels needed animal or human engines to turn them for thousands of years. It wasn’t until steam power was effectively harnessed that biological engines began to be replaced. And the enormous increase, of steel production in the mid 1800s, was the key to that powerful change.
Steel was the heart of the industrial revolution, and is still is the most required ingredient for modern economies.