Horizontal and Vertical Axis Wind Turbine – An Introduction

There are two categories of wind turbine, the horizontal axis wind turbine (or HAWT) and the vertical axis wind turbine (or VAWT). HAWT wind turbine is more commonly install and produce by more manufacturers than the VAWT wind turbine. One … Continue reading

Green Technology: The Ancient Persian Wind Power Technologies

Anybody who watches film the Prince of Persia will feel astonish with amazing architectures, technologies and sciences that Persian or Iranian had few thousand years ago. Although the story in the film is far beyond the reality, however the architecture and engineering from the movie is a brief explanation what Persian had invented thousands of years ago. You will be more surprise to know that in Persia there are more magic than the movies could show us. Welcome to Persia….. :) Continue reading