Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.

Anshu explores his bedroom as his eyes become accustomed to the dark, noticing the different light sources from inside his room, his house and outside his house. Whilst watching this clip ...

[Oneironaut] sent us another IR hack. This time it is a writeup on the best ways to create IR light sources from regular lights. Since normal flashlight bulbs emit a broad enough spectrum to ...

For hundreds of a millions of years, the universe existed in the dark ages—an epoch when only primordial gasses existed. Then ...

A source of light makes light. The Sun and other stars, fires, torches and lamps all make their own light and so are examples of sources of light. Some animals, such as fireflies and glow-worms ...

Scientists found a free-living coral species actively travels toward blue light resembling its natural habitat and moves like a jellyfish to migrate.

Experiments with atom-thick quantum ribbons achieved single-photon emission, advancing potential quantum tech light sources.

In that case, he suggests using multiple light sources. You can choose between light strings, large candles, lanterns, scones, lamps and pendant lights. The lights will supplement natural light ...

A Japanese research team has "seen the light" and is utilizing infrared wavelengths to generate electricity, an untapped energy source that accounts for nearly half of solar energy striking the Earth.

Researchers are exploring various strategies to improve these properties, including advanced material growth techniques, photonic structures for enhanced light-matter interaction, and active feedback ...