How to earn by blogging?

Are you a good blogger, with clean content writing, good grammatical skills? Then what you need is a blog in which you have to write posts about some products, paying not less than 5 dollars.There are offers more than 50 dollars too.More you write, more you will be paid.So stop browsing those fake web sites which eats up your time and not paying you what you deserve.Let your words do the earning for you.Register yourself and your blog for free and get paid through Paypal.

Where is the energy?

What happens to the mechanical energy of a fan which runs inside a closed container?In what form is that energy transformed?And similarly a loud speaker inside a closed room.What happens to that sound energy which is not being transformed out of the container walls?