As renewable energy installations multiply, the first generation of solar panels, wind turbine blades, and lithium-ion batteries is reaching the end of its lifespan. Police in Finland arrest 2 members ...

\begin{abstract} We present a locality--audit framework for proving circuit lower bounds for NP languages. We define an explicit NP--complete language equipped with structural invariances (``audits'') ...

Sewing machines looked simple, but their inner workings were anything but. Engineers had to invent an entirely new way of sewing to make machines possible. Tiny mechanical movements worked in perfect ...