Dr Andrew Clarke is a principal scientist in the Fluids department at Schlumberger Gould Research, Cambridge. He is also Honorary Professor at the University of Birmingham. Prior to working for Schlumberger, Dr Clarke worked for 20 years in Kodak’s research labs. His current research involves the flow of complex liquids in porous media, encompassing in particular polymer flow, microemulsion flow, microfluidic systems and sensors for oilfield deployment. At Kodak he worked on the dynamics of the wetting process, coating, printing and continuous inkjet systems. Andrew is currently chair or the East Anglia Branch of the IOP.