Sunlight - Wikipedia
Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light. On Earth, sunlight is scattered and filtered through Earth's atmosphere as daylight when the Sun is above the horizon.
Sunlight | Definition, Wavelengths, & Facts | Britannica
2024年11月15日 · Sunlight, solar radiation that is visible at Earth’s surface. The amount of sunlight is dependent on the extent of the daytime cloud cover. Some places on Earth receive more than 4,000 hours per year of sunlight, as in the Sahara; others receive less than 2,000, as in regions of frequent storminess.
Solar Radiation Basics - Department of Energy
Solar radiation, often called the solar resource or just sunlight, is a general term for the electromagnetic radiation emitted by the sun. Solar radiation can be captured and turned into useful forms of energy, such as heat and electricity, using a variety of technologies.
Benefits of Sunlight: A Bright Spot for Human Health - PMC
The best-known benefit of sunlight is its ability to boost the body’s vitamin D supply; most cases of vitamin D deficiency are due to lack of outdoor sun exposure.
How the Sun Works - HowStuffWorks
2023年8月23日 · But it’s a real marvel: The sun warms our planet every day, provides the light by which we see and is necessary for life on Earth. It can also cause cell death and make us blind. It could fit 1.3 million Earths inside its sphere [source: SpaceDaily].
Solar radiation | UV Rays, Photons, Electromagnetic Waves ...
2024年10月16日 · solar radiation, electromagnetic radiation, including X-rays, ultraviolet and infrared radiation, and radio emissions, as well as visible light, emanating from the Sun. Of the 3.8 × 10 33 ergs emitted by the Sun every second, about 1 part in 120 million is received by its attendant planets and their satellites.
Sunlight Definition & Meaning - Merriam-Webster
The meaning of SUNLIGHT is the light of the sun : sunshine. How to use sunlight in a sentence.