its easy there are many reason y they are important here are some of the reasones:
they are renewable ,they help the world
http://www.answers.com/main/ntquery?s=windmill&gwp=13
Depends how big the windmill is.
windmill is a process of contain electricity.
I would say that the discovery of Dark matter would be the biggest discovery. But other people may have other opinions.
The windmill was made in stop cheating do your homework
windmill
What important discovery was made there
Yes glass was an important discovery
windmill
why is the northwest passage have been an important discovery
Charles Darwin made his first important discovery in Argentina.
the discovery was so important because they were looking for this forever
There are many requisite for making a household windmill. I have found some important tips at site that is related to Solar power or wind energy. Hope you will get the desired answer.
Depends how early you mean, but the discovery of fire was the first very important discovery for man, then their was the wheel, and also agriculture.
the chimpanzee are important to her and everyone
Albert Einstein's most important discovery was the E=mc2 formula which is also the theory
windmill