One of these methods is by setting up seismographic stations to measure seismic waves as they travel through the Earth—every moment of refraction, diffraction, and reflection of those shock ...
Are subterranean lifeforms viable on Mars? A new interpretation of Martian seismic data by scientists Ikuo Katayama of ...
The waves always 'spread' to some extent into the area beyond the gap. This is diffraction - the spreading out of waves when they go through a gap, or past the edge of a barrier. The extent of the ...