Why does our hair grow

Published on in category Health
Why does our hair grow Among other things, hair plays a very important social role in human life. They can have different colors, shapes, lengths, curvatures across different ethnicities. Hair is biologically almost identical to fur in animals. But people do not have hair on most of their body or do not have in distinct quantities. Why on the head we have it and why in such quantities? Read more

Why are there thunders during the storm

Published on in category Physics
Why are there thunders during the storm Thunder is a natural phenomenon that we hear during a storm immediately after lightning. From the time delay between the occurrence of lightning and the recording of thunder, we can determine how far the storm is from us. But why do we hear thunder at all? Read more

Why is amount of insect in decline

Published on in category Nature
Why is amount of insect in decline Insects play a very important role in our ecosystem. A large part of insects is advantageous and available for pollination of plants, regulation of pests, recycling of dead plants and animals, or as animal feed. Biodiversity is closely tied to life on Earth, and its reduction can have irreversible detrimental consequences for the entire animal kingdom, including us humans. Read more

Why is the snow white

Published on in category Physics
Why is the snow white Snow is a form of ice and it seems transparent to us. The white impression is caused by its thickening in the form of a snow cover, which is formed by many snow crystals. They reflect and refract light in different directions, and our brain perceives this summary effect as white. Read more

Why the Great Wall of China was built

Published on in category History
Why the Great Wall of China was built The Great Wall of China is not a single wall. These are a number of longer or shorter sections that originated from the 8th century BC until the fall of the Ming Dynasty in 1644. But what were the reasons for the construction of the largest fortification complex in human history? Read more

Why is the Yellow River yellow

Published on in category Geography
Why is the Yellow River yellow The Yellow River is the second longest river in China, after the long river, and the sixth longest river in the world. The answer to the question of “why it the Yellow River yellow” and the Long River long is relatively simple with a little sarcasm. But is it really so? How far does the beginnings of the Yellow River name go? Read more

Why the Aral Sea dries up

Published on in category Geography
Why the Aral Sea dries up Before 1960, the Aral Sea covered an area of 68,000 km2. Now, divided into two separate parts, it does not have in total even 6,800 km2, i.e. 10 % of its original area. What were the causes of this huge natural disaster and what consequences did it bring to life around the lake? Read more

Why invest in gold

Published on in category Finance
Why invest in gold It is said that gold can preserve the value of money and overcome financial crises. It is an investment tool that can be speculated with. But what are the reasons for the decision to invest in gold? Read more

Why to get married

Published on in category Society
Why to get married In human society, marriage is a very old concept of sexual cohabitation of two or more partners of different or the same sex, but still most often between one man and one woman. But is marriage necessary in today's relatively liberal world? What are the main arguments for getting married? Read more

Why is it dark at night

Published on in category Physics
Why is it dark at night The question "why is it dark at night" was asked by scholars many centuries ago. However, they could not find the answer. Although the question seems relatively straightforward, the answer to it is not easy. At least not without the knowledge that science brought in the early 20th century. So why is it dark at night? Read more