Why is planet Earth called the blue? Is it really so?

Date:

2018-03-18 23:25:56

Views:

573

Rating:

1Like 0Dislike

Share:

Every certainly not once heard the Earth called "blue planet". Land got that name not so long ago, because previously, people just do not have
The opportunity to see their planet from a distance to be confident in her ground color. But are you sure that exactly remember why the planet
The Earth is called the blue?

Why is planet earth called the blue

Appearance

Water in the Universe has always been. Yes, at first it was not water streams, but only the smallest molecules deposited on dust particles and various cosmic bodies.
After some time, these dust particles and body United in one great education, destined to become a Land.

Looking at our country is just 4.5 billion years ago, no one would have guessed why the planet Earth is called the blue. After all, it was a huge piece of boiling mash and erupting lava. Long millions of years the gases released during these processes formed the Earth's atmosphere. There was methane, and nitrogen, hydrogen sulfide, hydrogen, and carbon dioxide. There was only free oxygen.

It was Not until, while slightly less than 4 billion years ago the atmosphere has not cooled down to 100 degrees – that's when the condensation process finally allowed a few
To become liquid. Endless drops of the jet, the whole flow of this water fell to the Ground. Incredible thunderstorms rampaged on the planet
Thousands of years. There was literally a flood! Almost boiling rain endless streams flowed to the ground. First, small streams, then all the larger rivers
Merged in one place, gradually transforming it into the World's oceans. However, then it was just dirty water, bubbling from the high temperatures and constant
Filling. And only after many hundreds of centuries the waters of the oceans were clean, cool, that is, took the view that we can observe today.

Recommended

"Knowledge is light and ignorance is darkness": the value, meaning and alternatives

There are some sayings that would seem to need no explanation, such as “teaching & ndash; light and ignorance – darkness”. But some still do not understand their meaning. But not only for such people is written by our article. I...

What was invented by Mendeleev for the army. The history and fate of the invention

What was invented by Mendeleev for the army. The history and fate of the invention

D. I. Mendeleev was a brilliant Russian scientist-polymath, who made many important discoveries in various fields of science and technology. Many people know that he is the author of “Fundamentals of chemistry" and the periodic law of chem...

The origin of the Slavs. The influence of different cultures

The origin of the Slavs. The influence of different cultures

Slavs (under this name), according to some researchers, appeared in the story only in 6 century ad. However, the language of nationality bears the archaic features of the Indo-European community. This, in turn, suggests that the origin of the Slavs h...

Water – this is the substance that has made our planet unique and gave the opportunity to life on planet Earth.

The Blue planet

The Astronauts say that if you look at the planet Earth from a satellite, first and foremost, pay attention to its blue color. This is due to the properties of our
The atmosphere and the surface of the planet (only where water is in liquid form). In addition, our planet is unique in the presence of oxygen
The atmosphere and the protective ozone layer which prevents the negative effects of the rays of the stars. Today to ensure the correctness of the astronauts, it is enough
Just to see a picture of the Earth from the satellite.

earth satellite

Ocean Color

On the other hand, I wonder why planet Earth is called blue, because water has no color. However, most of the sea water appear to be human
The look in blue color. Sometimes the sea can be green, black or yellowish. What is the matter?

And the reason is simple: the water color we see in sunlight. And any beam are known, includes all colors of the rainbow. The wavelength for each color is different,
Respectively, and penetrate the water column to different depths. The short-wave red, the longest – blue. It
For this reason, waves of different colors reflect different manner. And it gives us the opportunity to see a sea of different colors.

blue planet earth

Of Course, there is still a sea of red, but the story of them – is a completely different story, because their color is due to the large number of red algae
The surface of the sea, and not the bandwidth of the water for sunlight.

Blue sea

The Depth of light penetration into the sea depends on water clarity. The light reflected from microscopic particles such as algae or particles that are present
In any sea in the form of suspensions. The upper layers of the seas and oceans are not rich in these particles, because they fall down. For this reason, the blue part of the spectrum is
The opportunity to reflect at great depth.

All tropical seas can boast of microalgae, and therefore they all have the color blue, if you look at the planet Earth from the satellite or even from the rocks.

Other colors

The Water of those seas that do not have constant temperature or have a active current, continuously mixed, bringing in the top layers of the large number of
Nutrients. Water for this reason, it seems much more turbid, sunlight cannot penetrate beyond the top layers, so the blue rays there is not
Affected. Water color will vary from green to brown.

photo of earth satellite

It would Seem, why the planet Earth is called the blue if the color of the seas in all her different? The fact is, that when you look from the satellite solar light
Reflected not only in water, but passes through the atmosphere. And in this atmosphere the beam is reflected primarily in the blue spectrum. Of course,
There are also pure white swirl of clouds, but it's just too dense clumps of water vapor that is not able to pass longer wavelengths. This reflected and water, and the air bright and intense blue colour we see in photos of the globe.


Article in other languages:

AR: https://tostpost.com/ar/education/10088-why-is-planet-earth-called-the-blue-is-it-really-so.html

BE: https://tostpost.com/be/adukacyya/18124-chamu-planetu-zyamlya-nazyvayuc-blak-tny-c-tak-geta.html

DE: https://tostpost.com/de/bildung/18134-warum-ist-die-erde-blau-nennen-ob-das-so-ist.html

ES: https://tostpost.com/es/la-educaci-n/18144-por-qu-el-planeta-tierra-se-llama-azul-si-esto-es-as.html

HI: https://tostpost.com/hi/education/10100-why-is-planet-earth-called-the-blue-is-it-really-so.html

JA: https://tostpost.com/ja/education/10100-why-is-planet-earth-called-the-blue-is-it-really-so.html

KK: https://tostpost.com/kk/b-l-m/18120-nege-zher-planetasyn-k-g-ld-r-dep-ataydy-solay-ma.html

PL: https://tostpost.com/pl/edukacja/18096-dlaczego-planety-ziemia-nazywa-si-niebieski-czy-tak-jest.html

PT: https://tostpost.com/pt/educa-o/18089-por-que-o-planeta-terra-chamado-de-azul-isso.html

TR: https://tostpost.com/tr/e-itim/18130-neden-d-nya-gezegeni-olarak-adland-r-lan-mavi-bu-do-ru-mu.html

UK: https://tostpost.com/uk/osv-ta/18117-chomu-planetu-zemlya-nazivayut-blakitniy-chi-ce-tak.html

ZH: https://tostpost.com/zh/education/10942-why-is-planet-earth-called-the-blue-is-it-really-so.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

The main stages of development of life on Earth: table

The main stages of development of life on Earth: table

There is a whole complex of Sciences studying the basic stages of development of life on Earth, all of them consider the issue versatile, because it is a fundamental problem of natural science. It is very important value of paleon...

Children's creativity in kindergarten: a description and interesting ideas, advice and reviews

Children's creativity in kindergarten: a description and interesting ideas, advice and reviews

Activities for development of children's creativity in the kindergarten are a perfect way to help children learn key skills. Practical scientific activity always arouses curiosity, and a variety of art projects provoke independenc...

Hebrew and Yiddish - what is the difference? Hebrew and Yiddish: alphabet

Hebrew and Yiddish - what is the difference? Hebrew and Yiddish: alphabet

To the untrained ear of the Russian people Hebrew and Yiddish — interchangeable concepts, we can say even synonyms. But is it, and what's the difference? Hebrew and Yiddish — these are two languages spoken by the Jews,...

The invasion of Batu in Russia (briefly). The consequences of the invasion of Batu in Russia

The invasion of Batu in Russia (briefly). The consequences of the invasion of Batu in Russia

the Invasion of Batu in Rus ' (XIII Vek) – the invasion of the armies of the Mongol Empire on the territory of the ancient kingdoms. This event left a deep mark in the history of our country. Next, consider how the invasion ...

Firewood is not just a COP out of the woods, and the good material

Firewood is not just a COP out of the woods, and the good material

If you want to learn how to kindle a fire, you should know what brushwood, where to collect and how to use. About this useful material and will be discussed in our short article.meaning of the word "faggots"the Person who often go...

Modern inventions. The latest interesting inventions of the world. Modern Lefties

Modern inventions. The latest interesting inventions of the world. Modern Lefties

the Inquisitive mind never stops and is constantly looking for new information. Modern an invention – a vivid example of this. And what inventions familiar to you? Do you know how they have influenced the course of history a...