Prehistory. 1  Chang, Kwang-chih. 2  Discovery of residue from fermented beverage consumed up to 9,000 years ago in Jiahu, Henan Province, China. 3  Zhu, Rixiang; Zhisheng An; Richard Potts; Kenneth A. Hoffman. 4  The Discovery of Early Pottery in China by Zhang Chi, Department of Archaeology, Peking University, China.
There are a couple of popular ways of specifying the location of a celestial object. The first is what you would probably use to point out a star to your friend: the altitude-azimuth system. The altitude of a star is how many degrees above the horizon it is (anywhere from 0 to 90 degrees). The azimuth of a star is how many degrees along the horizon it is and corresponds to the compass direction. Azimuth starts from exactly North = 0 degrees azimuth and increases clockwise: exactly East = 90 degrees, exactly South = 180 degrees, exactly West = 270 degrees, and exactly North = 360 degrees = 0 degrees.
The Sun has a temperature ranging from 6,000Â° Celsius at its surface which is hot enough to turn gold, tungsten and every metal on Earth into gas. It is around 15,000,000Â° Celsius in its center-far hotter than anything we can generate on Earth.Pressure is also enormously high in its center.he temperature of a star is related to its color. Red stars are the coolest while the bluish-white stars are the hottest. Being a yellow star, the Sun emits extreme temperature but not that high as the white ones. Some stars such Vega and Rigel is much hotter than the Sun.