Under Pressure: Reproducing Deep-Earth Chemistry (video) University of California - Davis Share Print E-Mail Loading video... Caption Chemists want to understand chemical reactions that happen in solutions under high pressure in the Earth's crust. A new device invented at UC Davis allows chemists to make nuclear magnetic resonance measurements of chemical solutions up to pressures of 20 kiloBar. Credit Video by Andy Fell/UC Davis Strategic Communications. Usage Restrictions May be used with acknowledgement of the source. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.