A team of researchers has engineered a groundbreaking optical device that mimics the physics of black holes and their ...

In the realm of general relativity, black holes are well-known for their ability to trap light and matter by bending ...

Offers new possibilities to control light across the spectrum and insight into light–matter interactions. The device, reported in Advanced Photonics, functions as an optical black hole or optical ...

Standing waves are one of those topics that lots of people have a working knowledge of, but few seem to really grasp. A Ham radio operator will tell you all about the standing wave ratio (SWR ...

Interference can arise with one source of waves where the waves travel different distances before meeting. The difference in the distance travelled (the path difference) must be a full number of ...