19 interesting things about the Earth

Our Earth more than 4.5 billion years is a special planet in the universe. Earth exists life and many interesting things that people have not yet discovered.

1. Atmosphere

Earth's atmosphere has a classification structure from bottom to top as follows: troposphere, stratosphere, intermediate layer, thermal layer, ionosphere. The troposphere is closest to Earth and is also the thinnest layer, which supports life for people. It has a height of 0 to 16km.

2. Desert

Most deserts on Earth are not composed entirely of sand, 85% of which include stones and gravel. The Sahara is the largest desert in the world, accounting for one third of Africa.

3. The shape of the earth

In fact, the Earth is not really round. It is a flat sphere at two poles.

4. Exploiting sea salt in the ocean

Most of the salt in our oceans originates from rocks on the shore, mainly because natural rainwater breaks down the acidity of the rocks and causes them to dissolve into water.

Thick seawater salt connects if you mix all the world's oceans and condense, you will have a 152 m thick salt layer covering the entire surface of the Earth.

5. The sea is tight

The world's largest enclosed sea is the Caspian Sea (sometimes called the lake). It is located on the border between Iran and Russia.

6. Mountain

The Andes is the longest mountain range in the world (about 7280km long), the second longest is the Rocky Mountains, the third longest is the Himalayas. It is estimated that every time we climb the mountain for another 300 meters, the temperature drops from 0.5 to 1.5 degrees.

7. The deepest lake in the world

The deepest lake in the world is Lake Baikal . It has a depth of 1.63km, a length of 643km, a width of about 48km. Lake Baikal is large enough to hold all the water of the next five largest lakes.

8. Earthquake

About one million earthquakes occur on Earth every year. This phenomenon can cause catastrophic devastation and many people die.

9. The hottest place on earth

Most people believe that the Death Valley in California, USA, is the hottest place on Earth. However, the hottest temperature ever recorded in Azizia, Libya, was 57.8 degrees Celsius, on September 13, 1922. The hottest temperature in Death Valley is only 56.6 degrees Celsius, on July 10, 1913.

10. Fragment of space

Experts from the US Geological Survey (USGS) estimate that about 1,000 tons of space debris falls to Earth each year.

11. 24 hours

Our catchphrase of a 24-hour day is not really accurate because the Earth only rotates around its axis with 23 hours and 56 minutes.

So the reason we add up to 4 minutes is that the distance we turn around the sun is very big and it takes a while for him to shine the sun to us. Since the Earth turns slowly and continues for several million years, our day will last an additional 1.5 hours.

12. Uneven gravity

In Canada, there is a place called Hudson Bay with gravity and uneven gravity. These glaciers melt and they have long queued around this bay. In this special place, you can jump very high because the gravity of the Earth is very small.

13. Photos

At 65 miles above the atmosphere, the first images of the Earth were taken with a camera by the V-2 rocket in 1946. It captured the entire scene of our Earth every second. making scientists very happy to see the first pictures of our planet.

In 1967, the first photo of Earth was taken by DODGE satellite.

14. Stone can move

There is a place on Earth called the Death Valley called the Racetrack Playa that makes it possible to move from one place to another. Not only small rocks, they also weigh about tens, even hundreds of kilograms. The theory is that ice rocks were flooded and melted from the hills.

15. Twin planets

There is a theory that the Earth originally had a smaller twin planet called Theia the size of Mars.

5 billion years ago, it hit the Earth and was absorbed into the Earth's crust, the rest formed the celestial body known as the Moon .

16. Heat

Many assumptions are our main source of energy and if we stop receiving sunlight, people will be extinct.

In fact, the Earth's Sun core has a sun-like heat of 5,000-7,000 celcius degrees. In the event of a solar loss, we can still harness the energy inside the Earth's core to survive.

17. Lake explosion

Three lakes in Cameroon, near the Congo border called Nyos, Monoun and Kivu are often called blast lakes. In 1984, on a small stretch of road, a cloud of outstanding gas and devouring many locals walking on the road left 37 people dead. These gas clouds were later discovered, in fact, that carbon dioxide originated from explosions in lakes. So far, the explosions in the lake still occur continuously.

18. Mysterious ocean

Although we have set foot on the moon and conquered the highest mountains, people have only learned about 10% of the ocean.

So far, we have only discovered nearly 210,000 aquatic species and an estimated 20 million species have not been found.

That means that a distant future will have an evolution under the ocean and mermaids can happen.

19. Super continent

Back a long time before dinosaurs appeared on Earth, there was a supercontinent Pangea that merged all the world's lands together into a wide area.

But will another supercontinent form within the next 250 million years?

It will be named Ultima supercontinent, which includes a region in the West Ocean entering the Americas, Africa and Europe.