Holger Hermanns, Saarland University (IMAGE) Saarland University Caption Holger Hermanns, computer science professor at Saarland University, confirmed the reliability of his wireless bicycle brake through mathematical calculations. Credit Angelika Klein Usage Restrictions None 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.