Heidy Mader

Professor Heidy M. Mader of the University of Bristol is a British physicist who specialises in the flow of materials and particularly in the flow of lava from volcanic eruptions. She is the editor-in-chief of the "Journal of Volcanology and Geothermal Research". Mader also studies glaciology.
Education.
Mader received her Bachelor of Science in Physics from the University of York in 1985. She went on to receive her Doctorate of Philosophy in Physics from the University of Bristol in 1991. Her dissertation is entitled "Water veins in polycrystalline ice." 
Career.
Mader began her career as a Research Physicist in the Technical Development Department at Cadbury-Schweppes from 1985 to 1987. During her time there, she studied the flow of chocolate, including Wispa, an aerated chocolate bar. 