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5 Surprising Facts about the Desert

Desert is indeed often perceived as a place with a wide area and filled with sand. Barren, barren, and hot may be the key word that always appears when talking about deserts. However, it turns out that the desert is not always talking about it. Then, what are some interesting facts that are not widely known about the desert? Here are 5 interesting facts:

 1. Desert Area on Earth

The area of ​​the Earth is generally controlled by the sea with a total of approximately 71 percent of the total area of ​​the Earth. About 29 percent of the land area that is left is not much that can be used as a place to live, it is estimated that one third (33 percent) of this land area is controlled by deserts spread across the poles to deserts on the African continent and the Asian continent (estimated land area of ​​the Earth 148.9 million km²). No wonder the number is very large because the polar region is a very large area.
Sahara Desert | wikipedia

The deserts that are spread throughout the continents of the world are almost not used as a place to live because the land is quite barren and difficult to get food, water for life and desert storms are quite disturbing. But some countries in the Middle East have begun to spread their wings to areas around the desert by building pretty beautiful cities.

 2. Snow in the Desert

According to science, if an area has certain rainfall (allowing rain) and has enough low temperatures to cool down water, then the area allows snow. Desert is not a region without rainfall, only the rainfall is very small. But when it falls in the winter with the right time, snow is very likely to fall in the area.

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Sahara Snow |
This was proven precisely in 1979, the lowlands of the Sahara desert recorded their first snowfall in living memory. It snowed in places in southern Algeria, where a half-hour snowstorm stopped traffic. In winter, the temperature drops quite low at the top of Tahat, the highest mountain peak in Algeria, causing snow every three years.

3. The Most Isolated Tree on Earth

Most living trees coexist and colonize very much in number, but not with this one tree. The tree that was once considered the most remote tree on Earth is the only tree in a distance of more than 400 kilometers.
Tree of Ténéré |

The Ténéré tree is the only tree shown on the map on a scale of 1: 4,000,000. This tree is located near a 40-meter deep well found in the Sahara desert region. But unfortunately the tree that was quite horrendous and became the highlight of this collapsed in 1973, was hit by a truck driver who allegedly drunk. Until now this tree is still an interesting thing so that the local government made a monument to commemorate its existence.

4. Desert, Not Just about Sand

In geographical terms, the desert is an area that receives a rainfall of at least 250 millimeters per year. Usually if we talk about deserts that must have occurred in our minds there are deserts in Africa and eastern countries in Asia. But it turns out that the desert is not just talking about the area or the scattered barren shadow.

Snow and desert
The formation of the desert itself is divided into two, that is due to the weathering process of rock types and excessive evaporation of ground water. Deserts are usually separated based on the biome that lives inside, which is divided into cold deserts, hot and dry deserts, semi-arid deserts and coastal deserts. The majority of the desert that covers the earth itself turns out to be in the polar region.

5. The Biggest Desert in the World Not Available in Africa or Asia

The Antarctic Desert is a pretty amazing area with a very cold area and isolated from the outside world. The area reaches 14 million square kilometers making it the widest desert on Earth that belongs to the cold desert. The rainfall in the area itself is less than 51 millimeters per year. Most of the area is covered with ice, which covers approximately 90 percent of Earth's water.

Antarctica |

At least 2 percent of this largest desert is not covered with ice and is a habitat for animals such as penguins, seals, birds and other animals. Other areas or 98 percent of the area are covered with ice with a thickness of up to 1.6 km. Like in other deserts, wind storms still come to form a storm that can reach speeds of 320 km per hour.

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Scary facts behind the appearance of a blue lake in Antarctica

Sunset South Pole last up to 6 months. ©

The coldest place on Earth, the Antarctic continent, spring experiencing a unique phenomenon. Later known popping blue lake in the thick Antarctic ice sheet. What happened?

By the scientists, this beautiful blue lake called Lake superglasial. Although it is very interesting to be seen (and photographed), the emergence of the lake is causing fear among scientists.

Superglasial lake in Antarctica in 2016 DigitalGlobe

The reason, the emergence of the lake superglasial claimed to be the more severe signs of global warming in the Antarctic. During the years 2000-2013, there were 8,000 reported sprung superglasial lake in eastern Antarctica.

Yes, it looks blue lake is none other than melting permafrost. The lake is predicted to weaken the structure of the ice sheets in the Antarctic, making it easily destroyed. In fact, the phenomenon of the lake superglasial declared as one of the main causes of the loss of ice in the North Pole or the Arctic.

Based on data from NSIDC (National Snow and Ice Data Center), now around the Antarctic ice covering an area of ​​14 million square kilometers. Antarctic ice extent coincides with the United States and Mexico to join. And the emergence of the lake superglasial be a serious problem for the Antarctic.

Naturally enough, because a very large number of scientists in Antarctica to make sure if the sea level will grow as high as 60 meters if the whole ice there is melting.

Source: Gizmodo, Digital Globe

It turned out that the Earth is elliptical, not round!

Earth. ©

Many people assume that the Earth is round. This was reinforced by various phenomena and scientific theories.

But did you know that in fact the Earth is elliptical? Is it true? How can?

Actually, if there are people who say that the earth was round was true. It's just that it is a state in ancient times. But centuries ago, scientists and explorers began to realize that the earth is not perfectly spherical.

According to Geo Hunter British scientists led by Isaac Newton theorized that the centrifugal force of the Earth's rotation would 'force' our planet is to 'spread'. That is, the format has been changed from east to west as it spins on its axis.

The statement was supported by a French scientist who discovered strong evidence of changes in the earth's shape from round to elliptical. In 1753, French scientist expedition took measurements in the equatorial region in Peru and in the Arctic Circle in Lapland. From there the result of the earth at the equator is inflated so that further strengthens the theory that Earth is currently elliptical.

Not only that, the study of satellite Expertiment Gravity Recover and Climate (GRACE) NASA and the German Space Agency, noted that the expansion equatorial regions caused by the melting of the ice in Greendland and Antarctica.

Since the beginning, the state of the planet Earth is not perfectly round due to the rotation. So it makes the water on the earth's surface more gathered in the equatorial region than in the polar regions.

In the mid-1990s, the earth is expressed growing fat in the middle. That means that the earth is getting ellipse. As the ball is pressed from top to bottom (flattened). Curved waist grow in size and scientists have not been able to confirm the cause.

So, what is the effect if the earth is in the form of an ellipse?

According to computer simulations and analyzes performed by Scott Tremaine of the Institute for advandced Study in Princeton, New Jersey and Tomer Yavetz from Princeton University, this state will rescue the earth from satellites fall.

Apabiila earth has a perfectly round shape, many of the satellite will fall to atsmosfer and burned in a matter of months or years.

"Very interesting if you see there are many things that can interfere with the stabilization of low-Earth orbit, but there is a combination of many things which we can have good conditions for satellites," said Gregory Laughlin, a physicist at the University of California Santa Cruz.

(Adapted from various sources)

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