Almost Frictionless (IMAGE) Fraunhofer-Gesellschaft Caption One of the testing machines in which the researchers examine liquid crystals as lubricants: With which lubricant does the machine consume the least amount of energy? Credit Fraunhofer IWM Usage Restrictions The picture may be used for editorial purposes only. It is protected by copyright. The use is free of charge if the reference is mentioned. License Licensed content 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.