Physicists have an interest in the acoustical properties of liquid foam. Borrowing from both porous material and foam science, researchers studied liquid foams. They used an impedance tube to measure the velocity and attenuation of acoustic waves in liquid foams in a broad frequency range. …

They are difficult to reach, have hardly been studied scientifically, and their existence does not fit into current geological models: the Marie Byrd Seamounts off the coast of Antarctica present many riddles to volcanologists. In the international journal “Gondwana Research”, scientists from GEOMAR Helmholtz Centre …

1 20,292 20,293 20,294 20,295 20,296 21,769