The pipe organ offers the opportunity to conduct psychoacoustic experiments in which the sound of a natural instrument can be perfectly steady and reproducible. This study takes advantage of the pipe ...

A lava lake in a crater of Kīlauea spent ten years sloshing and churning before the volcano gave a bigger belch. Kīlauea erupted dramatically in 2018. Earthquakes, ash plumes, and lava flows disrupted ...