Rainbows form when water in the air reflects and refracts sunlight and disperses the normally white sunlight into colored light. White light is composed of colored light that bends at different angles when reflected and refracted, separating the white light into the distinct colors of a rainbow.
Rainbows are white light dispersed into its spectrum of colors. Rainbows become visible after sunlight and water drops experience a series of actions. First, light refracts when it touches the surface of a water drop. Next, light reflects off the back of a water drop, and lastly, light refracts again as it leaves. These refractions and reflections happen at varying angles that allow different colors to appear.
Dispersion causes the colors of a rainbow to appear in a specific pattern due to unique wavelengths for each color. Blue light has a shorter wavelength than red light and refracts at a greater angle, but dispersion due to the reflection step of the process makes blue light appear at a smaller angle than red. This happens for each color and is why rainbows are colored red, orange, yellow, green, blue, indigo and violet from top to bottom. Rainbows can form full circles, but viewers generally only see the above ground arc.Learn More
According to scientists, the earth is about 4.5 billion years old. However, because of the constant upheavals in climate, plate tectonics, asteroid strikes and other events, most of the evidence of the earth's beginnings are lost.Full Answer >
A biomass pyramid is a graphic illustration of the mass of organisms at each trophic level, which tends to get less as it goes up from producers to each level of consumer. There are inversions, however, where the mass of consumers is greater than the mass of producers.Full Answer >
My Science Box explains that Earth is a biosphere, as it is a global sum of all ecosystems. A biosphere is a closed system containing various zones of life. All living organisms within a biosphere are organized into various layers of complexity. These layers extend from the individual, to populations and communities, to ecosystems and biomes.Full Answer >
The densest material on earth was created by the Large Hadron Collider and named quark-gluon plasma. The substance can only exist in extremely hot temperatures and is denser than a neutron star.Full Answer >