Day 11. Sound #30DayMapChallenge Animation visualising the air pressure wave from the Krakatoa eruption of 1883. Travels out from Krakatoa, reaches antipode (in Colombia) then travels back to whence it came. This cycle happens several times over the course of a few days If my maths is right, spread of pressure wave should be in synch with rotation shown Done with a shader and compositing in Blender. #blender #b3d