ETHZ_PHYS_0016_c

Helmholtz-Sirene, Doppelsirene

The image presented on this page is part of E-Pics, a service provided by the ETH-Bibliothek of ETH Zurich. This medium resolution copy is published under the license indicated above.

Please respect terms of the respective license ( CC BY-SA or Public Domain Mark , indicated above under License) when using this image.