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Light

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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Lymphatic fluid takes detour

When tumours metastasise, they can block lymphatic vessels, as researchers from ETH Zurich have discovered using a new method. The lymphatic fluid subsequently has to find a new path through the tissue. Such ...

Medical research created 6 hours ago | popularity not rated yet | comments 0 | with audio podcast

Researchers discover mushrooms can provide as much vitamin D as supplements

Researchers from Boston University School of Medicine (BUSM) have discovered that eating mushrooms containing Vitamin D2 can be as effective at increasing and maintaining vitamin D levels (25–hydroxyvitamin D) as taking ...

Health created Apr 22, 2013 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Study reveals novel mechanism by which UVA contributes to photoaging of skin

A study conducted by researchers at Boston University School of Medicine (BUSM) provides new evidence that longwave ultraviolet light (UVA) induces a protein that could result in premature skin aging. The findings demonstrate ...

Diseases, Conditions, Syndromes created Apr 25, 2013 | popularity not rated yet | comments 0