Steem power and power Analogy

This is what i found out about my topic and i want to share it with you guys
From @donkeypong...said steem power operates like a concentrating force like a boiler,it superheat the content and creates steem... i understood that when you earn reward for posting and voting,part of this is paid to you in steem power. Then when you power up you increasing your SP also
The steemit power plant is said to a sleek machine

Steem dollar what people send to one another when they upvote posts on steemit. The reason steem dollar were created because the founder wanted to peg the value of steem in some way to the US dollar,so that people will be able to trade inside steemit but not be afraid of exchange rate fluctuation