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What are the colors of the rainbow?
As we have seen there are seven colors in a rainbow VIBGYOR: which are Violet; Indigo; Blue; Green; Yellow; Orange; Red. Lets us know the meaning of each color.read more.....http://www.wonderwhizkids.com/index.php/rainbows
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Why don't we see a full circular rainbow?
We generally don't see a full circular rainbow because the earth gets in the way. The lower the sun is to the horizon, the more of the circle we can observe at its sunset. we could see a full semicircle of the rainbow with the top of the arch 42 degrees...
Where is the sun when you see a rainbow?
Most people have never noticed that the sun is always behind them as they face a rainbow. The center of the circular arc of the rainbow is in the direction opposite to that of the sun. We know that the rain, is in the direction of the rainbow. read...
Do you know there are Different Types of Rainbows?
There are other four different kinds of Rainbows apart form the primary rainbow:1.Lunar Rainbows2.Secondary Rainbows3.Fogbows or white rainbows4.Spurious or Supernumerary bowsread more.....http://www.wonderwhizkids.com/index.php/rainbows
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Exploring rainbow colors with compact discs
Another good example of dispersion of light beam due to diffuse reflection is the case of why compact discs look multicolored. Rainbows appear when raindrops (which act like a prism) reflect sunlight, and break white sunlight into colors.read more....
Why rainbow have the shape?
From the ground level, only an arc of the rainbow is usually visible. A complete circular rainbow may be seen from an elevated position such as from an aeroplane. From the ground level, only an arc of the rainbow is usually visible. A complete circular...
Where do the colors of the rainbow come from?
The rainbow you see is formed by light refracted by many such drops; the red comes from drops angled slightly higher in the sky, the blue from drops angled slightly lower, and the intermediate colors from drops at intermediate angles. All the drops...
Is a Polar Bear really white?
Polar bears fur consists of a dense, insulating undercoat topped by guard hairs of various lengths. Polar bears do appear white to us. But there is more to this than meets the eye! Polar bears appear white, but their fur is not white. Each hair is made...
How do Polar Bears keep themselves warm?
Polar bears are warm–blooded mammals, yet they live in freezing Arctic temperatures. They retain their body heat because of a thick coat of fur as well as a thick layer of fat under their skin. Fur and fat are poor conductors of heat, or good insulators.read...
How do polar bears survive in the arctic environment?
Polar bears(Ursus Maritimus) live only in the northern Arctic where they spend most of their time on ice floes. It is the world's largest land carnivore. They are well suited to the cold Arctic ice and snow. Life in the Arctic is harsh. The bears live...
How did the Oceans form?
Initially earth was very hot and volcanic. At first the crust was formed as the planet got cooled. The impacts from asteroids and debris were the reason to form lots of craters. As the time went on, the planets continued to cool, forming water on the...
What Causes Earth Magnetic Field?
The inner core of the Earth spins on its axis. The outer core also spins along with the inner core, but at a different rate, which leads to a creation of the dynamo effect. This effect would lead to the conventional currents in the core. This is responsible...
Earth's Magnetic field
Earth's core is definitely the hottest part of our planet. It is made up of metals entirely. The core consists of two layers which are known as Outer core and Inner core. The outer core is mostly made of iron and nickel. The outer core is approximately...
What is there inside the Earth?
Many scientists came up with their own theories till the time when Newton proposed that Earth's interior is made up of much denser material. The density of the inner Earth is twice as that of the rocks on the surface of the Earth. This density reveals...
What is the age of the Earth?
The age of Earth is approximately 4.54 billion years. It is calculated using the radiometric dating methods of meteorite material. These ancient rocks are not from Earth's crust but they are the sediments of the lava deposited in water. The zircon crystals...
Earth: The Right Planet for Life
The only planet that supports life (as per the present knowledge of humans) is the Earth. The life supporting zone of the Earth is very small compared to the vast Universe. It is from the bottom of the ocean bed to the top of the highest mountain. Less...
The birth of planet
As the scientists have no concrete proof for how exactly Earth was formed, they strongly think that it was a swirl of gas and dust some 4.6 billion years ago spreading around 15 billion miles in space.Astrologers and scientists believe that all...
Penguin feathers
The Penguin feathers are waterproof. They keep penguins dry underneath, even while the birds are swimming. If penguins don't keep their feathers in very good shape, they don't stay waterproof. So penguins spend several hours a day preening, or caring...
How Penguin's keep themselves warm?
One of most important and interesting aspects of penguins is how they keep themselves warm and dry in the extreme cold conditions. A man standing barefoot on ice would quickly get frostbitten, penguins can do so all their lives with no damage at all....
How Penguins survive cold conditions?
Penguins are endotherms , which means that they have the ability to keep their body temperature at constant levels even when the surrounding temperature is very different. To regulate the body temperature they need to prevent the heat loss to the surroundings...
Where are the peacocks found and what is their behavior?
The Peacock is found in many locations including Burma, Indian, and Sri Lanka. They tend to live in locations that offer them access to low trees and plants. They also live in regions where they have access to farm grounds for feeding as well. They...
Outstanding Peacock feathers
The only pigment in the peacock tail is melanin, which gives the barbs a uniform brown color. This provides a dark background color for the thin–film interference in the keratin layers. The different colors in the eye pattern result from minute changes...
Secret behind Peacock feather colors?
In the case of the peacock, thin film interference takes place in three layers of keratin which cover the barbules. The light which passes through the keratin is retarded and therefore when it emerges from the keratin, some of the color components...
Anatomy of Peacock feather
When peacock feathers viewed under an optical microscope and a scanning electron microscope, they revealed a repetitive two–dimensional structure of small crystals (photonic crystals) – each with a width hundreds of times thinner than a human hair....
Why peacock is magnificent?
Peacocks
are pheasants native to Asia and are best known for the extravagant
tail feathers exhibited by the male of the species. The male peacock
tail contains spectacular beauty because of the brilliant, iridescent,
diversified colors and the intricate,...
What is a Milky Way?
Milky way Galaxy consists of huge stars, planets, comets, etc... It was so big that the speed of light takes 1,00,000 years to travel across it. There are hundreds of billions of stars in the Milky way. The average distance between stars in the milky...
How far apart are galaxies?
The wattage of the Pulsating stars can be found by observing the time lapse between each dim and sparkling of a star. This method is used to measure the distances across the Milky way galaxy. There are tiny galaxies (smudges) which appear to be...
How big is the Universe?
The biologist J.B.S Haldene once observed “The Universe is not only queerer than we suppose; it is queerer than we can suppose”. Carl Sagan estimated the probable number of planets in the universe at large to be 10 billion trillion and he further...
Big Bang and its Expansion - The Glorious Moment:
Long long ago, around 13.7 billion years ago there happened a moment of creation at time t=0, known as the Big Bang. It all started with a bang from a singularity which was smaller than a sub atomic particle that had no dimensions. This glorious moment...
Unlocking the secrets of DNA
Genome Sequencing provides the most comprehensive collection of an individual's genetic variation .We all have the same 30,000 genes in every DNA strand but we all have somespelling mistakes in some of the genes compared to one another. DNA resembles...
Why genome sequencing?
Save lives and Enhance your quality of life by knowing your DNA: The effectiveness of heuristic method of medical treatment based on available diagnostic procedures can be enhanced in its effectiveness by making it more personalized through...
What is genomic sequencing?
It is Your Story; Our Story and the Human Story. Before knowing about genome sequencing, let's have a look at what actually a genome is. Genome is the entirety of an organism's hereditary information. Every organism has a genome that contains all of...
How Uranium is turned into electricity?
A nuclear power station big enough to supply a city of a million people consumes just 3 kg of uranium a day, so it is by far the most concentrated source of energy used by man.A tiny push caused by neutrons divide the Uranium nucleus. And when...
How a nuclear reactor makes electricity?
A nuclear reactor produces and controls the release of energy from splitting the atoms of uranium. Uranium-fueled nuclear power is a clean and efficient way of boiling water to make steam which drives turbine generators. Except for the reactor itself,...
Nuclear Power
The Nuclear power is the utilization of nuclear resources for the generation of electricity. Nuclear Power includes, Nuclear Fission, Nuclear decay. Majority of the nuclear energy is from the elements of Actinide series of the periodic table which produce...
What is energy?
About half a million years ago, human beings learned to make fire. By collecting and burning wood they were able to warm themselves, cook food and manufacture primitive implements. All these activities utilize various forms of energy - biological, chemical,...
What is Uranium?
Uranium (U) is a metallic, silver-gray element that is a member of the actinides series. It is the principle fuel for nuclear reactors, but it also used in the manufacture of nuclear weapons. Uranium is a very heavy metal which can be used as an abundant...
Nature vs Nurture
"Nature versus nurture" is a debate related to whether heredity or the environment most impacts human psychological development such as behavior, habits, intelligence and personality. It's obvious that you share your parents' DNA in the physical sense...
Nanotechnology: Big things from a tiny World
Researchers and scientists completely dedicated their study to the world, which is so small, we can't see it – even with a light microscope. That world is the field known as nanotechnology, the monarchy of atoms and nano-structures.Nanotechnology...
