Angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy
(STM) have become indispensable tools in the study of correlated quantum materials. Both …

As a non-destructive testing technology with fast response and high resolution, acoustic
emission is widely used in material monitoring. The material deforms under stress and …

Aftershock cascades are a characteristic feature of natural seismicity, but underlying
mechanisms remain debated. Here, we experimentally explore the presence or absence of …

Urban scaling and Zipf's law are two fundamental paradigms for the science of cities. These
laws have mostly been investigated independently and are often perceived as disassociated …

Memory effects in seismology—such as the occurrence of aftershock sequences—are
implicitly assumed to be governed by the time since the main event. However, experiments …

We study triggering processes in triaxial compression experiments under a constant
displacement rate on sandstone and granite samples using spatially located acoustic …

Mining accidents are sometimes preceded by high levels of crackling noise, which follow
universal rules for the collapse of minerals. The archetypal test cases are sandstone and …

Physical systems characterized by stick-slip dynamics often display avalanches. Regardless
of the diversity of their microscopic structure, these systems are governed by a power-law …

Brittle fractures of inhomogeneous materials like rocks, concrete, or ceramics are of two
types: Nominally brittle and driven by the propagation of a single dominant crack or quasi …

We report on a large-scale characterization of river discharges by employing the network
framework of the horizontal visibility graph. By mapping daily time series from 141 different …