If a major disaster like Fukushima or Chornobyl ever happens again, the world would know almost straight away, thanks to an array of government and DIY radiation-monitoring programs running globally.

Abstract: Smith-Purcell radiation (SPR), which occurs when electrons traverse a diffraction grating, is a promising candidate for tunable terahertz sources. Recent advancements in enhancing ...

Explorers entered an abandoned underground nuclear laboratory, navigating tight steel doorways, rusted stairs, and flooded corridors while a Geiger counter began ticking upward. Inside, they found ...