The Barking Dog in a U-shaped tube.
Extra footage: https://youtu.be/Xg1BntXwpfo
Previous Barking Dog videos: http://bit.ly/Barking_Dog
More chemistry at http://www.periodicvideos.com/
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And on Twitter at http://twitter.com/periodicvideos
From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem
Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/
Brady's Blog: http://www.bradyharanblog.com
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Tagged under: chemistry,periodicvideos,periodic table,periodic table videos,professor,martyn poliakoff,nottingham,chemicals,elements
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