Why are there so many rounded letters in the Burmese script? Detailed answer

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Why are there so many rounded letters in the Burmese script? Detailed answer

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Why are there so many rounded letters in the Burmese script?

In the Burmese language, almost all the lines of the letters are rounded. This is due to the fact that in Burma they traditionally wrote on palm leaves. They are convenient in size and available in large quantities, but are not too strong, so a writing stick can easily tear the sheet in a straight line.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What is forestry?

Anyone who passes through our country sees so many forests everywhere that he may ask the question: why are we so anxious to protect them. Are there few forests, are there few trees in them? Approximately one third of the territory of the United States is occupied by forests. This is more than 250 hectares. Taking care of our forests is one of the most important tasks for the future of our country. This is given attention in the UK and in other countries.

First, imagine how much we get from the forest. Fruits, nuts, sugar are just some of the forest products. Houses, furniture, boats - everything is made of wood. Paper, fabrics, toys - the list is endless.

Second, forests reduce the risk of floods and help regulate water resources. A good forest has porous soil that easily absorbs water after heavy rains or from melting snow. If this water were not gradually absorbed into the soil, it would flow in torrents and cause flooding and soil erosion. And, of course, forests provide an opportunity for a good rest for millions of people. Caring for forests is called forestry and has been practiced in some European countries for hundreds of years.

More than 400 years ago England began to legislate to regulate deforestation, and in the XNUMXth century England began buying trees from other countries to plant! In most forests, aging trees need to be removed. Otherwise, older trees would take up all the space needed for younger, faster growing trees. In addition, uncut old trees eventually begin to rot and become useless.

After cutting down trees in some area, the vacated space is often planted by hand. In many places, however, it is nature itself that reforests. But in order to grow a good young shoot of trees of the required type in the place of cut down trees, great efforts and experience are required. Therefore, forestry has become a science.

The country with the largest forest reserves is Russia. In second place is Brazil, in third is Canada, and the United States is in fourth. Did you know that, despite all the measures taken, there are about 200000 wildfires in the United States every year?

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Fatty food damages memory 23.01.2016

Fatty food has a bad effect not only on the figure, but also on mental abilities: the experiments of Erica Underwood (Erica Underwood) and Lucien Thompson (Lucien T. Thompson) from the University of Texas at Dallas showed that in mice fed with fat, memory and ability to to learning. The experiment itself was set up as follows: the animals were kept on feed enriched with fats for three months, and then they checked what changes had occurred in the neurophysiology and behavior of the experimental subjects.

In mice on a fatty diet, the excitability of hippocampal neurons decreased - and the hippocampus, as we know, is one of the main memory centers, in particular, memory is consolidated in it, its transformation from short-term to long-term.

Based on the state of neurons that began to work worse, one would expect mice to have worse cognitive abilities. To test this, rodents were placed in a complex toy box, and after the mice got used to the arrangement of objects, one of the toys was placed in a new place. Those of the animals that ate normally quickly learned the new location of objects, but those that were kept on fatty food had difficulty remembering where the familiar thing was now. In other words, memory - at least that part of it that is responsible for orientation in space - having received an excess of fat, really failed. A year later, the learning ability returned to normal, although changes in neurons persisted (probably, some compensatory mechanisms worked).

Of course, other characteristic physiological abnormalities were also observed: for example, in male mice - but not in females - there were symptoms of type XNUMX diabetes, when tissues become less sensitive to insulin and they stop taking glucose from the blood. Since the activity of hippocampal neurons depends, among other things, on insulin, a decrease in the sensitivity of nerve cells to the hormone can affect the work of the neurons themselves and cognitive abilities. Diabetic symptoms in males persisted a year after switching back to normal food.

However, the question remains about females: their memory also deteriorated, and neurons worked worse, but they reacted to insulin in the same way as usual, and even more, sensitivity to the hormone in female neurons increased, and the amount of insulin synthesized decreased (which does not correspond to usual diabetic picture). Why the females here turned out to be different from the males, the researchers have yet to find out - as well as whether something similar happens in humans.

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