Posted on Jul 27, 2021 87
The name of the Sahara Desert was mentioned back in the first century AD. Interestingly, the word is translated from Arabic as “desert”.
The area of the Sahara can be compared with the territory of a country like the United States. However, there are only 2.5 million people living here, which is about one person per two square kilometers. People live here near water sources, where there is an opportunity to engage in agriculture and cattle breeding.
Within the state of Chad is the highest point of the Sahara Desert, Mount Amy Kousi. It may seem unbelievable, but on top of the mountain, which is 3,415 meters above sea level, there is snow.
Sometimes it happens that snow covers extensive areas of the desert. In January 2018, for example, snow fell in southwestern Algeria, and the cover was about 40 centimeters high. A couple of hours later, however, there was no trace of snow.
For most people who have never been in the desert, the area seems lifeless. But it is not: there are about 4,000 species of animals in the Sahara, which have adapted to these harsh conditions. For example, the Ethiopian hedgehog, which can go without food for up to two months.
The Sahara is also rich in minerals. Vast reserves of oil, gas, copper and iron ore, as well as gold, tungsten and uranium have been discovered here.
Once the territory of the modern Sahara was favorable for life, many tribes of cattle breeders, farmers, and hunters lived there. About 6 thousand years ago, the climate changed and became arid. The population had to leave the habitable places. Ancient cities that existed many centuries ago are covered with a multimeter layer of sand.
A few years ago, the company OHO has developed an unusual architectural project - a city that will be housed in a single skyscraper 450 meters in height and a total area of about 780,000 square meters. According to the authors of the project, this vast building will have everything people need for life - offices and apartments, a library, a museum, sports halls and swimming pools, and even a garden.
In the city of Tegazi you can see houses made of salt. And, the locals are not afraid that the rains can wash out their homes, because precipitation is extremely rare here.
Scientists have been able to calculate how much sand is in the Sahara desert. The figure is hard to imagine: there are about 3 million buckets for each inhabitant of our planet.
For a long time it was believed that the Sahara area is continuously increasing. However, a study of images taken from space has shown that the area of the desert can both increase and decrease.
The roots of trees growing in the desert go down to a depth of up to 20 meters. This is the only way to get the water necessary for plant life.
Every year in the Sahara Sand Marathon is held, a grueling competition, in which the participants must overcome 243 kilometers of sand in 6 days. Despite the grueling conditions, the competition attracts hundreds of participants, and the winner receives a prize of $4,500.