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1. spaceplace.nasa.gov › light-year › spWhat Is a Light-Year? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov › light-year › sp

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   6 de may. de 2024 · article last updated August 27, 2020. A light-year is the distance light travels in one Earth year. Learn about how we use light-years to measure the distance of objects in space.

2. www.nature.com › lsa › research-articlesResearch articles | Light: Science & Applications - Nature

   www.nature.com › lsa › research-articles

   Hace 1 día · An implantable wireless device delivers two light wavelengths sequentially was developed to programmatically control the release and activation of the loaded photosensitizer.

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4. spaceplace.nasa.gov › light-year › enWhat Is a Light-Year? - NASA Space Place

   spaceplace.nasa.gov › light-year › en

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   6 de may. de 2024 · For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!

5. www.bbc.com › culture › articleAll We Imagine as Light will win hearts everywhere - BBC

   www.bbc.com › culture › article

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   Hace 4 días · All We Imagine as Light is specific in its detailing of life as a woman in today's Mumbai, but this Indian-French co-production also has the feel of an American or European indie comedy drama. It ...

6. theconversation.com › what-causes-the-different-colours-of-the-aurora-an-expertWhat causes the different colours of the aurora? An expert...

   theconversation.com › what-causes-the-different-colours-of-the-aurora-an-expert

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   13 de may. de 2024 · Read more: What are auroras, and why do they come in different shapes and colours? Two experts explain. The electric rainbow of the aurora happens when excited atoms relax via ‘forbidden ...

7. www.thoughtco.com › the-visible-light-spectrum-2699036Visible Light Spectrum Overview and Chart - ThoughtCo

   www.thoughtco.com › the-visible-light-spectrum-2699036

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   2 de may. de 2024 · The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. Essentially, that equates to the colors the human eye can see. It ranges in wavelength from approximately 400 nanometers (4 x 10 -7 m, which is violet) to 700 nm (7 x 10 -7 m, which is red).

8. www.britannica.com › technology › LEDLED | Definition, Lights, Types, & Facts | Britannica

   www.britannica.com › technology › LED

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   10 de may. de 2024 · LED, in electronics, a semiconductor device that emits infrared or visible light when charged with an electric current. Visible LEDs are used in many electronic devices as indicator lamps, in automobiles as rear-window and brake lights, and on billboards and signs as alphanumeric displays or even.