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.
Some people believe in UFOs, some do not. And there will always be “proofs of UFOs”, as much as there will always be people who think it is just another conspiracy theory...