Mankind has built and invented millions of machinery to use energy, to make our daily lives much easier and satisfying. ... These mills had a far more sophisticated design made out of strong stone built towers. By using brick and stone for the body, tower mills can be built even larger and taller than other mills, they are also more durable, and more weatherproof. ... Another improvement is the windmills mechanism. ... The newly built windmills consisted of 8 blades, rather than 4. ...

• Word Count: 1024
• Approx Pages: 4
• Has Bibliography
• Grade Level: High School

Over the past several years, temperatures around the world kept rising. Sometimes it's unbearable for people on this planet. "The temperature during an eight-day heat wave in Chicago in July 1995 hovered around 100 degrees Fahrenheit. High levels of humidity made the air feel even hotter, creatin...

• Word Count: 3357
• Approx Pages: 13
• Grade Level: High School

Wind energy is an alternate source of generating electricity, usually obtained from moving air, which depends on the motion of wind resulting from the temperature of the earth (heating and cooling). The power is consumed through the turbines and generated by its magnetic fields. Wind Energy is alway...

• Word Count: 1092
• Approx Pages: 4
• Grade Level: High School