Acoustic Weyl Crystal (image) ETH Zurich Department of Physics Share Print E-Mail Caption The 'acoustic Weyl crystal' used by the group of Sebastian Huber at ETH Zurich to explore the effects of a background field that couples differently to Weyl fermions of opposite chirality. Lego figurine for scale. Credit ETH Zurich/D-PHYS Heidi Hostettler Usage Restrictions None 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.