The periodic table is a tabular arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations (electron shell model), and recurring chemical properties.
Cycloramic is an app made in 2012 that can take 360 panorama shots without using your hands. It sure is a fascinating app, but what makes it even more interesting is the following story.
Christopher Columbus was an European explorer and trader who by coincidence discovered America in the 15th Century. Check your knowledge and build up your Dreevoo profile.
