„Es lädt uns dazu ein, unsere Vorstellung von Schatten zu überdenken“: Wissenschaftler entdecken, dass Laserstrahlen tatsächlich ihre eigenen Schatten werfen können
https://www.livescience.com/technology/it-invites-us-to-reconsider-our-notion-of-shadow-laser-beams-can-actually-cast-their-own-shadows-scientists-discover
2 Comments
“Our demonstration of a very counter-intuitive optical effect invites us to reconsider our notion of shadow.”
It doesn’t really, though. Under certain specific conditions you can cause one laser to block the light of another, producing a shadow. That’s exactly what shadows are – something blocking light. Indeed, if the notion of shadow did have to be redefined in light of this experiment, this experiment wouldn’t really be meaningful.
Well… I mean it makes sense. Light is a partical and a wave.