„Tables charting the chemical elements have been around since the 19th century – but this modern version has a short video about each one.“
http://www.periodicvideos.com/#
It's not a bug it's a feature – vincit omnia veritas
„Tables charting the chemical elements have been around since the 19th century – but this modern version has a short video about each one.“
http://www.periodicvideos.com/#