light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is the visible spectrum that is visible to the human eye and is responsible for the sense of sight. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 4.00 × 10−7 to 7.00 × 10−7 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–750 terahertz (THz). The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and power systems, electric lighting has effectively replaced firelight. Some species of animals generate their own light, a process called bioluminescence.
BAJKOWY VIEW - Leave, rest, relax
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BAJKOWY VIEW

Added 2 weeks ago by ada

59

The sun is shining. - The sun shines through the trees.
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The sun is shining.

Added 3 weeks ago by Zeta

39

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added month ago by andi

32

Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 2 months ago by andi

30

For the patient - complicated jigsaw puzzle
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For the patient

Added 2 months ago by andi

26 1

For the patient - complicated jigsaw puzzle
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For the patient

Added 2 months ago by andi

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Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 2 months ago by andi

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landscape - landscape landscape landscape landscape
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landscape

Added 2 months ago by ASK

169

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added 3 months ago by andi

16

La Sagrada Familia - Lorem ipsum dolor sit amet
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La Sagrada Familia

Added 3 months ago by Ayla

53

Las Vegas 2 - Las Vegas USA
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Las Vegas 2

Added 3 months ago by ASK

71

winter sun - sunny winter weather
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winter sun

Added 3 months ago by Basiunia

226 1

women c.d - thoughtful girl and in the background a picture
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women c.d

Added 3 months ago by stanisława

27

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added 3 months ago by andi

28

Windows-10 - colorful jigsaw puzzle
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Windows-10

Added 3 months ago by andi

19

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added 3 months ago by andi

18

my own - wallpaper converted into a puzzle
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my own

Added 3 months ago by Mayo

23

Sunset - colorful jigsaw puzzle
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Sunset

Added 3 months ago by andi

180

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added 4 months ago by andi

23

Valentine's puzzle - colorful jigsaw puzzle
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Valentine's puzzle

Added 4 months ago by andi

37

Valentine's Day - colorful jigsaw puzzle
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Valentine's Day

Added 4 months ago by andi

12

Anime Fairy - Photo Fairy Wallpaper
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Anime Fairy

Added 4 months ago by Duo Voice

7

Jigsaw-puzzle - colorful jigsaw puzzle
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Jigsaw-puzzle

Added 4 months ago by andi

23

XDXDXDXD - Hasta la vista
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XDXDXDXD

Added 4 months ago by Wojtas

14

Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 4 months ago by andi

27

Jigsaw puzzle - colorful puzzle-puzzle
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Jigsaw puzzle

Added 4 months ago by andi

43

Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 4 months ago by andi

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Cottage with garden - colorful jigsaw puzzle
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Cottage with garden

Added 4 months ago by andi

120

Jigsaw puzzle - colorful puzzle jigsaw
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Jigsaw puzzle

Added 4 months ago by andi

56

abstraction - abstract view of water
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abstraction

Added year ago by żaba

26

London by night - colorful puzzle jigsaw
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London by night

Added year ago by andi

121

For the patient - complicated puzzle
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For the patient

Added year ago by andi

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For the patient - complicated puzzle
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For the patient

Added year ago by andi

56

Sunset - bridge in the background of the setting sun
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Sunset

Added year ago by andi

183