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Buildings - Light - online puzzles

25Buildings in Israelsolved 39 times
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36new year's evesolved 38 times
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25golden domes in the distancesolved 37 times
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100Man standing on the roofsolved 35 times
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16cars parked on side of the road near high rise buildingssolved 35 times
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25curtain wall building during night timesolved 33 times
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16Animals - Pink Floydsolved 33 times
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36brown and white concrete building near body of watersolved 28 times
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16white and black concrete building under cloudy skysolved 26 times
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9white and black concrete buildingsolved 24 times
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Marina Bay Singapore online puzzle
25Marina Bay Singaporesolved 22 times
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city buildings during night time sliding puzzle online
9city buildings during night timesolved 19 times
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gray concrete road between high rise buildings sliding puzzle online
49gray concrete road between high rise buildingssolved 19 times
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purple frame graphic sliding puzzle online
36purple frame graphicsolved 19 times
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Exploring sliding puzzle online
25Exploringsolved 18 times
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white and brown concrete building during night time online puzzle
25white and brown concrete building during night timesolved 18 times
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Marina Bay Sands, Singapore online puzzle
64Marina Bay Sands, Singaporesolved 17 times
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cars on road between high rise buildings during daytime sliding puzzle online
25cars on road between high rise buildings during daytimesolved 17 times
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landscape photography of skyscrapers sliding puzzle online
36landscape photography of skyscraperssolved 16 times
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man standing on the ground looking at the city lights online puzzle
9man standing on the ground looking at the city lightssolved 14 times
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city during night time sliding puzzle online
16city during night timesolved 12 times
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concrete buildings during daytime online puzzle
25concrete buildings during daytimesolved 12 times
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city skyline during night time online puzzle
9city skyline during night timesolved 11 times
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Rina Sawayama online puzzle
25Rina Sawayamasolved 11 times
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Tokyo Tower at night sliding puzzle online
25Tokyo Tower at nightsolved 10 times
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city skyline during golden hour online puzzle
81city skyline during golden hoursolved 10 times
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city skyline during night time online puzzle
36city skyline during night timesolved 10 times
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Online puzzle Light

Light

Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths).In physics, the term "light" may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum and polarization. Its speed in vacuum, 299792458 m/s, is one of the fundamental constants of nature. Like all types of electromagnetic radiation, visible light propagates by massless elementary particles called photons that represents the quanta of electromagnetic field, and can be analyzed as both waves and particles. The study of light, known as optics, is an important research area in modern physics.

The main source of natural light on Earth is the Sun. 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.