Interesting Engineering on MSN6d
Scientists bend light through time, unlocking a new dimension for control
Scientists have demonstrated how to manipulate light by using time-varying media in the form of specialized nanomaterials.
BBC20d
Light and sound waves - OCR 21st Century
Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. is ...