The powers of the national government are limited
Answer:
James Watt- steam engine with condenser- used much less coal than earlier engines.
Henry Bessemer- Industrial process for steel production- made it cost efficient to produce steel from molten iron on a large scale.
Eli Whitney- Cotton gin- Allowed fibre to be extracted from seed more efficiently.
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A similarity between the separation of powers, the system of checks and balances, and federalism is that they all are meant to keep the federal government from becoming too powerful and tyrannical.
Islam regulates, apart from beliefs, also everyday life and customs. For example, it restricts what you can eat (halal) and effectively ensures that you will most likely eat with fellow Muslims (you're unlikely to eat non-halal food with non-believers).
It also regulates your day, requiring you to pray five times a day - this has a big influence on people's everyday life.