Mac OS X Mountain Lion has 43 secret desktop wallpapers hidden in one of its folders. They are all beautiful, high quality and this is how you find them.
The original photo was taken in 1927 at the Fifth Solvay Conference where the most prominent and outstanding physicists and chemists got together to talk science.
This is a very welcome feature that saved my day at various occasions, you can turn your iPhone into a wireless hotspot and share its mobile data connection.
Let's see if you are familiar with the very basic words of the German language. Go through the intuitive questionnaire and build up your knowledge profile.