Mercury freezes at 39C --- Nitrogen boils at -196C More slow mo from periodicvideos: http://bit.ly/chemslomo The three slow motion sequences in this video can be seen in more detail at... Mercury in small container: https://www.youtube.com/watch?v=-Yf_Mi-ZHjw Mercury in big flask: https://www.youtube.com/watch?v=VTeeOs2Ok6I Copper in N2: https://www.youtube.com/watch?v=0gLBBbNXn4g More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem Periodic Videos is a project by video journalist Brady Haran: http://www.bradyharan.com/ (James Hennessy filmed and edited this video) A run-down of Brady's channels: http://bit.ly/bradychannels