第1个回答 2011-05-07
Astronomy is one of the oldest disciplines, it was born in the practice of human activities. Dating back to 2500 of 30 centuries ago, when the Shang Oracle objects, the images are already rich notebook. Spring and Autumn and Warring States periods, our ancestors with a special dedicated to Astrology "Gan Shi Xing Jing". Back in the 16th century ago, Chinese astrology observation far ahead of other nations to achieve a considerable degree of precision. Ancient Chinese astronomers, who ended a red herring, Zhang Heng, Zu Chongzhi, his party, Shen Kuo, such as creation of Guo Shou astronomical observation device. observing stars, the moon and measuring radial movement and the Earth, creating the revision of the "Ming Li," "The Great Mayor Li" "delegated calendar," Calendar. The ancient Chinese astronomy, including the four main components, namely, the calendars Sky records, and astronomical instruments to create the universe theory. Ancient Chinese calendar will be divided into 24 year ago. It is the solar equator and the Tropic of Cancer in the South's operating rules. Many ancient calendars were formulated, a number of improvements to achieve a very superior standard. Very detailed records of the ancient Chinese Theater. Very meticulous observations of the sun, more than 2,000 Nianqianjiuyou detailed records of sunspots. Eclipse of the world's most complete record of as much as 1,000 times, but periods of time position has a clear record. According to the shape of comets conducted detailed breakdown of the meteor shower record 180 times. a massive meteor shower of brilliant records, the Chinese people are the first to realize that the national meteorite dropped from the sky. Chinese star of the rich and the records system, which is unique in the world. Ancient Chinese Theater on the modern record of important reference value
第2个回答 2011-04-24
People are beginning to attach much more importance to their health these days than ever before. They begin to realize that good healthis the most valuable possession a person can have. However, many people don't know how to stay healthy although great efforts have been made in this regard. In my opinion, there are three things we can do if we want to be in good.
First, we should have the right food, because proper nutrition is the most important for good health. Avoid foods with lots of sugar and fat. Eat plenty of high protein foods, vegetables and fruits. Do not overeat. Secondly, we should get proper amount of sleep, because without enough sleep, we will often feel tired and irritable. Allow ourselves at least eight hours of sleep each day. Have a nap at noon if time permits. Finally, we should exercise regularly, because'life depends on exercise'. Regular exercise strengthens our hearts andlungs. In addition, it prevents us from putting on weight.
If everyone is to do so, there will be much less complaining about poor health and there will be much more happiness in our life.