How to Protect Your Home With Defensive Bushes. There are some seriously nasty bushes out there. Even a simple rosebush or, better yet, a raspberry bush can be enough to make people think twice before getting close to your home. If you’re really serious
Water Power - Microhydro Electricity Basics: Pressurized, flowing water is a very dense resource, and hydro-electric systems convert a very large percentage of the available energy into electricity because the resource is captive in a pipe or flume.