The Periodic Table of Videos is a collaboration between the University of Nottingham Chemistry journalist Brady Haran and video. At first it made videos on the 118 items.
Graphic charts of the chemical elements have been around since the 19th century – but this modern version has a short video on each of them.
They’ve done all 118 – but their work is not finished. Now they are updating all the videos with new stories, better samples and bigger experiments. For more information go to the periodic table of videos.
31 years ago, NASA experienced one of the greatest disasters in the history of the space program. The space shuttle Challenger broke apart just 73 seconds into the flight.The disas...