Energy & Green Tech

Our next renewable energy source could be an artificial leaf

LSU researchers are exploring new ways to use the oldest energy source on our planet—sunlight—to create truly green energy on demand. You've already heard of solar cells and solar panels, but David Vinyard, assistant ...


Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.

Three primary properties of light are:

Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.

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