AK-47 is an assault rifle designed by Mikhail Kalashnikov, used by many Eastern Bloc countries during the Cold War. Plow is a tool in agriculture are used to loosen the soil before planting and sowing, is also one of the most simple and useful tool in history. The tongue is a collection of skeletal muscle on the floor of the mouth that can help the digestion of food by chewing and swallowing. Who will win?
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| AK-47 |
In World War II, Germany created the concept of assault rifles. This concept is based on the experience that the modern battle is more common in short distance, which is about 100 meters. The power and reach of the bullet at that time turned out to be too big. Then, Germany began to develop bullets and rifles that have a nature submachine gun (content magazen much and can shoot full-auto) with bullets that can reach up to 300 meters. Taking into account the cost of production, this is achieved by shortening the bullets of 7.92 x 57 mm Mauser into a size 33 mm ie 7.92 x 33 mm Kurz (Kurz means short).
The end result, stg 44 (StG44), it is not the first rifle that uses this concept; before Italy and the Soviet Union never designed a similar concept. However, Germany was the first to mass produce their rifles. Germany are using their new guns to confront the Soviets on the Eastern Front. The experience of the Soviet Union against Germany, which affect the Soviet doctrine in the following years.
Based on Soviet doctrine, Mikhail Kalashnikov began thinking about the design of the rifle from the hospital, after being wounded in fighting in Bryansk. He was informed that a new weapon is being sought, for use with the 7.62 x 41 mm cartridges made by Elisarov and Semin in 1943. But for once, the design Kalashnikov lost against Sudayev design, namely PPS43. Kalashnikov change the design of his first after he learned StG44 Germany in 1946. Because of its design is quite impressive, Kalashnikov and was chosen to lead a design team.
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| Plow |
At the beginning of agriculture began to flourish, humans only use spades. It is easy for the people living in the area a very fertile as the Nile, where the annual flood always renew the soil in the area. But, to regularly cultivate in the less fertile areas, the soil should be digemburkan first so that later can make a groove to sow the seeds.
The primary purpose of plowing is to take part in the fertile soil to the surface. Usually plow pulled by a cow. However, in some areas of poor and developing countries, plows pulled by horses. Meanwhile, in developed countries, already used engine fossil fuel-powered rover.
When farming first developed, hoes and similar tools are used in areas where the annual flood restore soil fertility, such as on the edge of the Nile. Hoe is used to make the planting furrow (furrow) for planting seeds. Hoes is an innovation that is developed independently between tribes and cultures. Hoe is still the method of cultivation in tropical countries and steep croplands. However, modern farmers still use hoes although infrequently, to process the narrow parts of the ground when the tractor is not efficient.
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| Tongue |
Other structures related to the tongue are often called lingual, from the Latin lingua or glossal from Greek, γλωσσα.
In addition to work on the mechanism of digestion or pronunciation, the human tongue has many other uses. Tongue role in one form known as french kiss kissing or French kissing. The tongue also used to lick action in humans and mammals.
The tongue is used in men and women when performing oral sex and used at the level of heating or foreplay in sex activity. Therefore, the tongue often associated with erotic and sensual connotations.
The tongue can be a place for the piercing on some cultural community. Tongue piercing has been around since ancient times and now increasingly on western culture, especially in youth culture.
The tongue is used on some other action such as chewing gum and whistle blowing.