Chemistry is the science that studies the composition, structure and properties of matter and the changes that occur during chemical reactions. Answer a few questions to see how good you really are in Chemistry?
Opening or changing the battery cover on Nokia Lumia 820 can be a bit tricky if you don't know where to begin. Let me show you the easiest way without doing any damage.
Nokia released the Here Maps app for iOS devices. You can use as a turn-by-turn navigation, search for interesting places, buses and plenty more for free. This is how you install it on your iPhone or iPad.
In Photoshop CS6, the new version of Photoshop, you can use special cropping tool and you are done, but that doesn't mean you cannot achieve the same result with older versions.
RawTherapee is a free open source application for opening and editing RAW image files. It works on all major operating systems such as Windows, Linux and Mac OS X.
The good folks at the Delft University of Technology came up with a dragonfly-like winged machine that can fly completely autonomously until the batteries allow.