In 2024, seven vehicles in western China each transmitted a high-powered microwave beam that converged precisely in both time ...

A supermassive black hole has been discovered by astronomers that's shooting a giant energy beam directly at Earth.

Dual-energy X-ray absorptiometry (DXA ... BMD techniques were originally based on single-photon absorptiometry, in which transmission of a scanning pencil beam, from a radionuclide source, through the ...