Welcome to the Modern Typewriter, a daily blog to discuss topics that can’t be answered easily, or are just some fun topics! Today is May 23rd, 2010, I’m Royce, and I’m here to continue with my Earth Day project to raise awareness about wind turbines, and harnessing the power of wind.
Some people don’t know exactly what wind turbines are and what they do. Wind turbines are used to harness the power of wind to create electricity. Before we go any further, I believe we need to discuss wind and wind power first though.
What is wind exactly? Wind is the movement of air from an area of high pressure to an area of low pressure. Wind exists because the Sun heats the Earth unevenly. As hot air rises, cool air fills its place, thus creating wind.
What is wind power? Wind power is a renewable energy resource that can be considered ‘green’ because it does absolutely no pollution to the environment, unlike using coal or oil.
Now that we have that covered, let’s go to the turbines. These are the creators of wind power. Wind turbines are as tall as twenty-story high buildings, and have nearly 200-foot-long propeller blades. Wind turbines are usually painted white, and look like the turbines below:
Now, you may be thinking, how in the world can these things called turbines generate electricity? Well, to create the electricity, the wind turns the propeller blade, which turns a shaft, which is connected to a generator that generates the electricity, shown below.
The wind industry is booming! All over the world, wind farms filled with wind turbines are being built, generating more and more green electricity. Just in the past decade, wind turbine use has increased at a rate of 25% per year! This statistic is absolutely phenomenal! No pollution is coming from these wind turbines, and there is little risk associated with it.
So, now that we know a basis of wind turbines and how they work (which is fairly simple!), we need to discover why this source of power is better than using coal or oil. Look for my third post in my Earth Day project, coming soon!
Do you know someone who operates wind turbines? Are they a good thing to have? What do you think? Feel free to comment to express your opinion!
Until next time, remember, I’m Royce, and this is the Modern Typewriter, OUT!
Diagram of Wind Turbine Taken From: