The Doors were an American rock band. They were one of the most famous bands of all time. Take this quiz and see how well do you really know The Doors.
Lime scale is often found as a similar deposit on the surface of pipes and other surfaces where "hard water" has evaporated. In this lesson I will show you how to clean it.
Windows 8 brings just two quick view of all the files in a particular folder, which are set by default in Windows Explorer. You'll learn where to find other views.
Scientist may be an expert in one or more areas of science. Some of them have decisively influenced on the development of mankind. Let see how many of them you know.
