This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
D normal modes. normal modes in Dlattice Rgis Lachaume yorick convert public domain Dnormalmodes kB much smaller and faster version Rgis Lachaume Lachaume Animated Lattice vibrations Animations of standing waves
Page 2023 Free-images.com. All images are Public Domain