You are looking for attractive and cute live wallpaper for girls that will make you smile the second you take a look at your phone? Look no further! Rainbow Stars Live Wallpaper gives you the delight of watching many little colorful stars with smiley faces sprinkled all over the lovely rainbows!
- Perfect girly live wallpaper for Android!
- Interactive background-Tap anywhere on the screen and new rainbow stars will appear!
- Full support for landscape mode and home-screen switching!
Enjoy this lovely, free and useful live wallpaper!
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A rainbow is an optical and meteorological phenomenon that is caused by reflection of light in water droplets in the Earth's atmosphere, resulting in a spectrum of light appearing in the sky. It takes the form of a multicolored arc.
Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
In a "primary rainbow", the arc shows red on the outer part and violet on the inner side. This rainbow is caused by light being refracted while entering a droplet of water, then reflected inside on the back of the droplet and refracted again when leaving it.
In a double rainbow, a second arc is seen outside the primary arc, and has the order of its colors reversed, red facing toward the other one, in both rainbows. This second rainbow is caused by light reflecting twice inside water droplets.
A spectrum obtained using a glass prism and a point source, is a continuum of wavelengths without bands. The number of colors that the human eye is able to distinguish in a spectrum is in the order of 100. Accordingly, the Munsell color system (a 20th century system for numerically describing colors, based on equal steps for human visual perception) distinguishes 100 hues. However, the human brain tends to divide them into a small number of primary colors. The apparent discreteness of primary colors is an artifact of the human brain. Newton originally (1672) divided the spectrum in five primary colors: red, yellow, green, blue and violet. Later he included orange and indigo, giving seven primary colors by analogy to the number of notes in a musical scale.
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth. Other stars are visible from Earth during the night, when they are not obscured by atmospheric phenomena, appearing as a multitude of fixed luminous points because of their immense distance. Historically, the most prominent stars on the celestial sphere were grouped together into constellations and asterisms, and the brightest stars gained proper names. Extensive catalogues of stars have been assembled by astronomers, which provide standardized star designations.
For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen in its core releasing energy that traverses the star's interior and then radiates into outer space. Almost all naturally occurring elements heavier than helium were created by stars, either via stellar nucleosynthesis during their lifetimes or by supernova nucleosynthesis when stars explode. Astronomers can determine the mass, age, chemical composition and many other properties of a star by observing its spectrum, luminosity and motion through space. The total mass of a star is the principal determinant in its evolution and eventual fate. Other characteristics of a star are determined by its evolutionary history, including diameter, rotation, movement and temperature. A plot of the temperature of many stars against their luminosities, known as a Hertzsprung–Russell diagram (H–R diagram), allows the age and evolutionary state of a star to be determined.
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