Dermatologists advise their patients to avoid harmful ultraviolet light, which can cause skin damage, photo-aging and skin cancer. But they also may prescribe light therapy to treat certain skin conditions. Light therapy ...
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Using light pulses as a model for electrical defibrillation, Göttingen scientists developed a method to assess and modulate the heart function. The research team from the Max Planck Institute for Dynamics and Self-Organization ...
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Exposure to higher levels of light can help people feel more awake and increase cognitive performance, probably by influencing the activity of parts of a brain region called the hypothalamus, according to new research.
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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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