EarthHow earthquakes can trigger copycat quakes 1000 kilometres away Seismic waves vibrating at the right frequency can shake up distant tectonic faults, even if the waves are very weak, and set off secondary quakes News
PhysicsCan we get energy from nothing? The Casimir effect suggests that the vacuum is fizzling with ephemeral particles. Is it real? And can we harness this energy concealed in empty space? Features