As pearls were expensive, it was concentrated in only a few, but as the beginning of the 19th century century wealth is diversified and growing interest in pearls. It was then that the concept of pearl culture or culture in. We Pearl Japanese researchers Mise and Nishikawa, must open a special technique to induce the formation of a round pearl oysters in a set. But it was Kokichi Mikimoto who beat them to acquire a patent for this technology. And so began the attack on Pearl cream, black and pink.
Perle need human help. An epithelial membrane shell form of a chip with a core shell or a metal or a preformed rod inserted in the oyster. Oysters then secreted nacre layers covers the outer surface of the implant. A pearl is formed during the year. Culture of the Middle East is very popular to use for creating beaded jewelry.
Summer Solstice explained
In astronomy, the term “solstice” to. An astronomical event that occurs when the apparent position of the sun, in the extreme north to the extreme south of the sky other than the sun, the angle of the earth to 23.5 ° C, rotation and revolution are also a crucial role in this phenomenon. The path of the sun when the Tropic of Cancer in June (June solstice) and the Tropic of Capricorn in December (winter solstice).
Although the use of “Midsummer” is limited in the June solstice in the northern hemisphere, it is very popular because this continent is home to about 90 per cent of the world population. In the summer solstice in the southern hemisphere in June called “Winter Solstice” because it marks the beginning of winter. In other words, took place in June solstice to the summer solstice for those in the northern hemisphere and the winter solstice happens to be the summer solstice for those in the southern hemisphere.