International Women's Day has been celebrated around the world on 8 March every year since 1911. This year, the theme for ...

Maha Shivratri is one of the most significant nights in the Hindu calendar, observed with prayer, devotion, and time spent ...

We often look up at the sky without even thinking about it, but when asked why it's blue, many people probably only know that it's due to a phenomenon called ' Rayleigh scattering,' and can't really ...

Blue light is a high-energy part of visible light from the sun, screens, and light-emitting diode (LED) bulbs. Your cornea and lens don’t block blue light the way they block ultraviolet (UV) rays.

More than one-fifth of US electricity is used to power artificial lighting. Light-emitting diodes based on group III/nitride semiconductors are bringing about a revolution in energy-efficient lighting ...

Abstract: We report on a first successful operation of current-driven GaN photonic-crystal surface-emitting laser, which can operate in blue-violet wavelength regions at room temperature.