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  1. Hace 5 días · A laser is an unusual light source. It is quite different from a light bulb or a flash light. Lasers produce a very narrow beam of light. This type of light is useful for lots of technologies and instruments—even some that you might use at home! How does a laser work?

  2. en.wikipedia.org › wiki › RedshiftRedshift - Wikipedia

    Hace 3 días · All sufficiently distant light sources show cosmological redshift corresponding to recession speeds proportional to their distances from Earth, a fact known as Hubble's law that implies the universe is expanding. All redshifts can be understood under the umbrella of frame transformation laws.

  3. Hace 5 días · A prism separates white light into its different wavelengths. White light goes in, all the colors of the rainbow come out. In the visible range, red has the longest wavelength, while violet has the shortest.

  4. Hace 5 días · Frequently there are beautiful light shows in the sky. These lights are called auroras. If you're near the North Pole, it is called an aurora borealis or northern lights. If you're near the South Pole, it is called an aurora australis or the southern lights.

  5. en.wikipedia.org › wiki › SunSun - Wikipedia

    Hace 1 día · Sunlight at the top of Earth's atmosphere is composed (by total energy) of about 50% infrared light, 40% visible light, and 10% ultraviolet light. The atmosphere filters out over 70% of solar ultraviolet, especially at the shorter wavelengths.

  6. Hace 4 días · This post will discuss numerous lighting options, practical lighting for different sorts of areas, and how to select the best light fixtures for your house. Before delving into a few important lighting options that can be installed while performing the interior design of any house, let’s understand the science behind lighting.

  7. Hace 5 días · 12 Types of Light Switches and How to Choose. Learn the different types of light switches to update your home's lighting. You have a dozen types of light switches to choose from to control light fixtures, appliances, and other devices. Most common types come in different styles, such as toggle, rocker, slider, or push-button.

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