CROWN COPYRIGHT / HEALTH & SAFETY LABORATORY / SCIENCE PHOTO LIBRARY CROWN COPYRIGHT / HEALTH & SAFETY LABORATORY / SCIENCE PHOTO LIBRARY
Frictional thermite reaction. Friction igniting a thermite reaction. This occurs when an aluminium object strikes an oxidised surface, in this case a rusty object (iron oxide). This is part of research carried out by what is today the UK's Health and Safety Laboratory (HSL). Photographed in the 1980s.
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