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f these metals' permanence. Subscribe for regular science videos: http://bit.ly/RiSubscRibe After the storming success of his family-friendly talk at the Ri, Andrew Szydlo returns to take us through the fantastic world of steel and iron. This demonstration-packed performance features spectacular white hot reactions, crazy colour changes, welding, angle grinders, gunpowder, 8 pence coins and a working car engine! Andrew Szydlo is a chemist and secondary school teacher at Highgate School, well-loved by pupils and Ri attendees alike. He has given public lectures around the country, been featured on TV shows and has become a popular part of the Ri Channel in the last year. The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-po... Subscribe for the latest science videos: http://bit.ly/RiNewsletter