Casimir cavities are mysterious spaces between microscopic metal plates in a vacuum. Areas of diminished energy between the plates cause them to push toward each other, as if trying to fill the ...
If you ever notice a river go suddenly quiet, that’s your cue to get to higher ground and not film. And if snow beneath your boots makes a deep, hollow “whumph” sound, that isn’t just weird acoustics; ...
Alabama authorities and some common sense (I know) say these sounds, all recognizable, might mean immediate danger.