0
0
0

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.
Morning in the forest. - Morning in a forest clearing.
Play now!
Morning in the forest.

Added week ago by Zeta

103 5

Morning alarm clock. - Morning alarm clock on the fence.
Play now!
Morning alarm clock.

Added 8 days ago by Zeta

195

Rome by night - Somewhere in Rome on a night walk
Play now!
Rome by night

Added 4 weeks ago by Leo

13

Sunset. - Sunset in Masuria.
Play now!
Sunset.

Added month ago by Zeta

116

Beautiful candles - Do it yourself, beautiful candles.
Play now!
Beautiful candles

Added month ago by Jeżyna

19

Colorful watering cans. - Colorful watering cans on the wall.
Play now!
Colorful watering cans.

Added 2 months ago by Zeta

134

Prague Czech at night. - Czech Prague in the winter evening.
Play now!
Prague Czech at night.

Added 2 months ago by Zeta

48

Jigsaw puzzle - colorful jigsaw puzzle
Play now!
Jigsaw puzzle

Added 2 months ago by andi

25

Stopped in Time ... - Beauty and Delicate Ease of Moment
Play now!
Stopped in Time ...

Added 2 months ago by SU-

30

green hills - green hills, river, reflection of the sun
Play now!
green hills

Added 3 months ago by sandra

154

WINTER FOREST - winter, snow, forest, rays of the sun
Play now!
WINTER FOREST

Added 3 months ago by sandra

84

BAJKOWY VIEW - Leave, rest, relax
Play now!
BAJKOWY VIEW

Added 3 months ago by ada

64

The sun is shining. - The sun shines through the trees.
Play now!
The sun is shining.

Added 3 months ago by Zeta

42

Colorful puzzle - colorful jigsaw puzzle
Play now!
Colorful puzzle

Added 4 months ago by andi

45

ghfghjgjgjtuykuytkitu - cvbfghffgdfgrdfgredgredfgrtgdfrtefdgrtfdgfrtfgfrt
Play now!
ghfghjgjgjtuykuytkitu

Added 4 months ago by damiano

53

Jigsaw puzzle - colorful jigsaw puzzle
Play now!
Jigsaw puzzle

Added 4 months ago by andi

37

For the patient - complicated jigsaw puzzle
Play now!
For the patient

Added year ago by andi

30 1

For the patient - complicated jigsaw puzzle
Play now!
For the patient

Added year ago by andi

23

Jigsaw puzzle - colorful jigsaw puzzle
Play now!
Jigsaw puzzle

Added year ago by andi

20

landscape - landscape landscape landscape landscape
Play now!
landscape

Added year ago by ASK

170

Colorful puzzle - colorful jigsaw puzzle
Play now!
Colorful puzzle

Added year ago by andi

18

La Sagrada Familia - Lorem ipsum dolor sit amet
Play now!
La Sagrada Familia

Added year ago by Ayla

54

Las Vegas 2 - Las Vegas USA
Play now!
Las Vegas 2

Added year ago by ASK

72

winter sun - sunny winter weather
Play now!
winter sun

Added year ago by Basiunia

227 1

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

Added year ago by stanisława

30

Colorful puzzle - colorful jigsaw puzzle
Play now!
Colorful puzzle

Added year ago by andi

28

Windows-10 - colorful jigsaw puzzle
Play now!
Windows-10

Added year ago by andi

19

Colorful puzzle - colorful jigsaw puzzle
Play now!
Colorful puzzle

Added year ago by andi

19

my own - wallpaper converted into a puzzle
Play now!
my own

Added year ago by Mayo

23

Sunset - colorful jigsaw puzzle
Play now!
Sunset

Added year ago by andi

184

Colorful puzzle - colorful jigsaw puzzle
Play now!
Colorful puzzle

Added year ago by andi

23

Valentine's puzzle - colorful jigsaw puzzle
Play now!
Valentine's puzzle

Added year ago by andi

37

Valentine's Day - colorful jigsaw puzzle
Play now!
Valentine's Day

Added year ago by andi

12

Anime Fairy - Photo Fairy Wallpaper
Play now!
Anime Fairy

Added year ago by Duo Voice

7

Jigsaw-puzzle - colorful jigsaw puzzle
Play now!
Jigsaw-puzzle

Added year ago by andi

24

XDXDXDXD - Hasta la vista
Play now!
XDXDXDXD

Added year ago by Wojtas

14

Jigsaw puzzle - colorful jigsaw puzzle
Play now!
Jigsaw puzzle

Added year ago by andi

28