Make your own biodiesel for 80 cents per gallon by Jeffrey Yago. The author was skeptical at first, but after trying it out, he was convinced that making his own biodiesel was the cheapest, most energy-efficient way to fuel his vehicles .
How To Make Biodiesel . remember, your vehicle HAS to be a diesel engine, but it's possible to purchase a kit to make this modification--and it's simple enough to do on your own! (However, using Biodiesel can also VOID your warranty, so be careful!
Neuroscience for Kids: learn about the nervous system. Discover the exciting world of the brain, spinal cord, neurons and the senses. Use the experiments, activities and games to help you learn about the nervous system.