Understand the physics behind total internal reflection and why light can become completely trapped inside a medium. This video explains the conditions required for total internal reflection, the role ...

If ever spotted in the emptiness of space, according to theoretical physicist Eugeny Babichev of the University of ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

The speed of light is one of the most fundamental constants in physics, yet it has never been directly measured in one direction. Instead, scientists rely on assumptions built into how time and ...

Take, for instance, quantum entanglement, which says that the state of one particle can be determined by examining the state ...

Light is usually described using quantum mechanics when phenomena like entanglement enter the picture. But a new paper shows ...

Shaped quantum light is turning ordinary photons into powerful tools for the future of technology.

While the terms "quantum physics" and "Theory of Relativity" are used casually every day, not many people know what they really mean. Yet these theories have had a profound impact not only on science ...

Physics is the study of the underlying laws and mechanisms explaining how the universe works. Most of what we do in daily life is based on a principle or law of physics—dealing with forces, motion, ...