What writing mean

Writing, method of human intercommunication by means of arbitrary visual marks forming a system. Writing can be achieved in either limited or full systems, a full system being one that is capable of expressing unambiguously any concept that can be formulated in language.
The separation of the consonant sounds from the vowel sounds, and the separate writing of each. This requires a few more signs but eliminates the ambiguity of having the reader supply the vowels. Alphabetic writing requires the greatest number of signs for a given utterance, but the number of signs required for the system is small enough so that the signs can still be very simple. Because each sign represents a phoneme, the word that is intended by the writer is spelled out explicitly, and no sounds are required to be supplied by the reader.These systems outline the theory and methods of writing, but in actual fact writing systems do not exist in these pure forms. Elements from one type of system are almost always found incorporated in another; an example is the number of logograms used with the modern alphabetic writing system.

Writing systems always tended to be conservative, their origins often being attributed to divine sources. Any change or modification was met with great hesitation, and even today, attempts to reform spelling or eliminate inconsistencies in writing conventions meet with strong resistance. Because of this conservatism major innovations in the structure of a writing system usually occurred when one people borrowed a system from another people. The Akkadians, for example, adapted the syllabic portion of the Sumerian logo-syllabic system to their own language, but retained the logograms, and used them regularly as a type of shorthand. When the Hittites borrowed the system from the Akkadians for their own language, they eliminated most of the polyphonous and homophonous syllabic signs and many of the Sumerian logograms, but used a number of Akkadian syllabic spellings as logograms.

Leonardoda vinci

Leonardo da Vinci
Leonardo da Vinci (1452-1519), Florentine artist, one of the great masters of the High Renaissance, celebrated as a painter, sculptor, architect, engineer, and scientist. His profound love of knowledge and research was the keynote of both his artistic and scientific endeavours. His innovations in the field of painting influenced the course of Italian art for more than a century after his death, and his scientific studies—particularly in the fields of anatomy, optics, and hydraulics—anticipated many of the developments of modern science.Leonardo was born on April 15, 1452, in the small town of Vinci, near Florence, in Tuscany. He was the son of a wealthy Florentine notary and a peasant woman. In the mid-1460s the family settled in Florence, where Leonardo was given the best education that Florence, a major intellectual and artistic centre of Italy, could offer. He rapidly advanced socially and intellectually. He was handsome, persuasive in conversation, and a fine musician and improviser. In about 1466 he was apprenticed as a garzone (studio boy) to Andrea del Verrocchio, the leading Florentine painter and sculptor of his day. In Verrocchio’s workshop Leonardo was introduced to many activities, from the painting of altarpieces and panel pictures to the creation of large sculptural projects in marble and bronze. In 1472 he was admitted to the painters’ guild of Florence, and in 1476 he was still considered Verrocchio’s assistant. In Verrocchio’s Baptism of Christ (c. 1470, Uffizi, Florence), the kneeling angel in the left of the painting is by Leonardo

Hawaii Volcanoes

Hawaii Volcanoes National Park, national park on southern Hawaii Island, Hawaii, established in 1916 and covering 927.4 sq km (358.1 sq mi). It contains two active volcanoes, Mauna Loa and Kilauea. Mauna Loa, the world's largest volcanic mass, towers 4,170 m (13,680 ft) above sea level. The walls of its summit crater, Mokuaweoweo, rise to about 180 m (600 ft); eruptions occur here and from the fissures and newer craters that have formed on the slopes of the mountain. Kilauea projects from the eastern slope of Mauna Loa; it rises 1,247 m (4,090 ft) above sea level. The east rift of Kilauea has been erupting continuously for more than 10 years. Kilauea's crater, with an area of more than 10 sq km (4 sq mi), is the largest active volcanic crater in the world. Its vast inner pit, Halemaumau, is sometimes called the “House of Everlasting Fire”. The park's varied landscape includes the Kau Desert on the arid leeward (eastern) slope of Kilauea and a luxuriant tree fern forest on its moist windward (western) slope. Hawaii Volcano Observatory (established 1911) is on the rim of Kilauea Crater. Until 1961, Hawaii Volcanoes National Park was combined with Haleakala National Park on Maui Island as Hawaii National Park. In 1987 the park was declared a UNESCO World Heritage Site.