Add Yahoo as a preferred source to see more of our stories on Google. On a navy blue background is the book cover of 'The One Thing You Need to Know: 21 Key Scientific Concepts of the 21st Century' by ...

An international group of physicists has traced the origin of an electromagnetic interaction to the Dirac equation, a fundamental equation of quantum physics. The interaction couples the spin of the ...

Light trapping within waveguides is a key practice of modern optics, both scientifically and technologically. Photonic crystal fibers traditionally rely on total internal reflection (index-guiding ...

Quantum Electrodynamics (QED) examines the fusion of quantum mechanics and electromagnetism, moving beyond classical theories ...