3 ms·
> The claim is that spacing the berms by the wavelength of the (presumably dominant) airport frequency creates greater reduction It might work like a Bragg Gra
by eternauta3k 8y ago
> The claim is that spacing the berms by the wavelength of the (presumably dominant) airport frequency creates greater reduction
It might work like a Bragg Grating: https://en.wikipedia.org/wiki/Fiber_Bragg_grating https://en.wikipedia.org/wiki/Fiber_Bragg_grating