blue

Blue is one of the three primary color of pigments in painting and traditional color theory, as well as in the RGB color model. It lies between violet and green on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colors; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called Tyndall scattering explains blue eyes. Distant objects appear more blue because of another optical effect called atmospheric perspective. Blue has been an important color in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramarine, the most expensive of all pigments. In the eighth century Chinese artists used cobalt blue to color fine blue and white porcelain.
Mine - the new sneakers of a well-known
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Mine

Added 2 days ago by ich 88

1

Internet security - Take care of internet security
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Internet security

Added 2 days ago by Angelika

5

PUZZLE OF ICT - Arrange the puzzle and read the password that appears.
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PUZZLE OF ICT

Added 3 days ago by KAROLINA

15

Holiday. - Colorful boats on the beach.
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Holiday.

Added 4 days ago by Grażyna

46

Body scheme - Puzzles for activities in kindergarten
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Body scheme

Added 4 days ago by Angelo

27

Internet - principles of safe use of the network
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Internet

Added 5 days ago by Natalia

3

Internet - Rules for safe use of the network
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Internet

Added 5 days ago by Natalia

2

white and blue rose - fabulous blue and white rose
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white and blue rose

Added week ago by gra

66

Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 11 days ago by andi

17

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added 11 days ago by andi

12

Security - Do not provide your personal data or passwords on the network
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Security

Added 12 days ago by Daria

3

Marichat - Marinette and Chat Noir Love
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Marichat

Added 2 weeks ago by Julia

0

Colorful street. - colorful street in Burano. Italy.
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Colorful street.

Added 2 weeks ago by Zeta

91

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 weeks ago by Red Eyes

0

Thats the stuff - its something about a thing that talks of a thing
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Thats the stuff

Added 2 weeks ago by Myself

3

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 weeks ago by Red Eyes

0

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 weeks ago by Red Eyes

0

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 weeks ago by Red Eyes

0

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 weeks ago by Red Eyes

0

Anime Cats - Photo Cats Wallpaper
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Anime Cats

Added 2 weeks ago by Red Eyes

0

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 2 weeks ago by Red Eyes

0

Pier at Maldives. - Pier at Maldives. Indian Ocean.
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Pier at Maldives.

Added 2 weeks ago by Zeta

28

Ikuto Tsukiyomi - Photo Anime Cat Wallpaper
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Ikuto Tsukiyomi

Added 2 weeks ago by Red Eyes

0

Beach in Crete. - Crete beach in Greece.
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Beach in Crete.

Added 3 weeks ago by Zeta

17

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added 3 weeks ago by andi

21

Colorful puzzle - colorful jigsaw puzzle
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Colorful puzzle

Added 3 weeks ago by andi

32

dandelion - dandelion on the background of the sky, spring
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dandelion

Added 3 weeks ago by sandra

69

Balcony. Blue facade. - Balcony. Blue facade.
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Balcony. Blue facade.

Added 3 weeks ago by Zeta

74

luca del campero - great flower of the desert of 2'19
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luca del campero

Added 3 weeks ago by alby

34

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 weeks ago by Red Eyes

1

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 weeks ago by Red Eyes

2

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 weeks ago by Red Eyes

1

Anime Girl - Photo Girl Wallpaper
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Anime Girl

Added 4 weeks ago by Red Eyes

0

Ui Nakatsugawa - Photo Girl Wallpaper
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Ui Nakatsugawa

Added 4 weeks ago by Red Eyes

1

Anime Cat - Photo Anime Cat Wallpaper
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Anime Cat

Added 4 weeks ago by Red Eyes

0

Anime Cat - Photo Anime Cat Wallpaper
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Anime Cat

Added 4 weeks ago by Red Eyes

4

Anime Boy - Photo Anime Boy Wallpaper
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Anime Boy

Added 4 weeks ago by Red Eyes

0

Anime Boy - Photo Anime Boy Wallpaper
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Anime Boy

Added 4 weeks ago by Red Eyes

0