Waves of two different frequencies crossing a hexagonal lattice

[@KitagumaIgen]

NICE! Still fondly remember the lab where we were tasked with working out the crystal lattice of an unknown sample from its X-ray diffraction-pattern.

[@robertl4522]

I'm sorry but the background music sounds like what plays during a fight between a supervilan and superhero, where they both are a bit tired from fighting so they banter a bit, throwing around one-liners while they catch their breath, and this is exactly what is playing in the background. Honestly this channel always has the best background music.

[@NilsBerglund]

Lee van Cleef and Clint Eastwood having at it?

[@robertl4522]

@@NilsBerglund Yes!

[@andytroo]

it is said that low frequency waves can't fit through gaps lower than their wavelength - is that only for certain types of waves, as it seems these go through fine? the low wavelength is wider than the distance between the posts ...

[@NilsBerglund]

Maybe I should have used larger discs. However, the wave profile indicates that waves of the lower source pass more easily to reach the top right region, following a channel in the lattice.

[@tomofthedepths1742]

Can it be interpreted as an electronic wavefunction propagating in a 2d lattice?

[@NilsBerglund]

The Schrödinger equation would be more appropriate for this. The linear (hyperbolic) wave equation and the Schrödinger equation have some similarities, but they also have important differences, especially for short times.

[@asunhug]

Sickkkkk