You got a .rar file and you don't how to open it, some one asked you to send him "a rar file" or you just need a good archiving software? Download and install WinRAR.
The new iOS 7 comes with an interesting moving background motion or a so called Parallax Effect when you physically move your device about. Let me show you how to turn it off to improve battery life.
I know a lot of people who do not care for wearing a helmet when on a bike for a common reason of looking silly or it will mess up their hair. This amazing invisible helmet could be quite revolutionary.
Many times I find myself with a large number of opened tabs in Firefox browsers and thankfully you don't need to close the program in order to close all the tabs except the one I want to keep.
MTT-136 - My Track Technology is an astonishing and persistent little electric powered, tracked vehicle. This thing can run in mud, grass, deep fresh snow, forrest ground, basically any terrain you can think of. I want one.