This time we're talking about microchips and the world of microelectronics. Microchips are the bedrock of modern technology and are vital in everything from fighter jets to mobile phones. The United States and more recently, Taiwan have been dominant leaders in the global markets of new chip technology. But massive investment in China might change all this.

Our guest today is Dr Chris Miller. Chris is an associate professor of international history at the Fletcher School of Law and Diplomacy at Tufts University and Jeane Kirkpatrick visiting fellow at the American Enterprise Institute. His research examines key shifts in technology, international politics and economics. His most recent book, 'Chip War', explores the history of microchip technology and the hold this tiny tech has on the whole planet.

The Zero Pressure podcast series looks at how science and technology positively can contribute to solving complex, interrelated global challenges of today and tomorrow. We look at pioneering technologies and speak to those on the thinking edge.

Zero Pressure is a podcast from Imperial College London and Saab. A relaxed conversation with those on the cutting edge of science and technology - hosted by Britain's first astronaut Helen Sharman - Presented by Imperial College London and Saab.