From Ground to theConsumer Market
Mining process
Drilling and testing in all directions searching
By virtue of blasting to reach the new reef
Build a new mine
Loosen gold rocks is to drill a blast
Bring the rocks to the surface
Crush the rocks into a sand white dust
Mixed in cyanide and carbon to dissolve the quartzite and leech out the gold
Melting and pouring the purified gold
Ⅰ.Prologue
Mankind always pursued evolution. In historically, Mankind developed their life or lifestyle consistently. There were revolutionary turning points all the time, like made a iron and Industrial revolution etc. Like the preceding, Early human also developed their life and consistently evolved. As we know, Early Human showed marvelous evolutions. First, Orrorin and Australopithecus we
What is Paleolithic?
● The Paleolithic Age, Era or Period, is a prehistoric period of human history distinguished by the development of the most primitive stone tools discovered , and covers roughly 99% of human technological prehistory. It extends from the earliest known use of stone tools, probably by hominins such as australopithecines, 2.6 million years ago, to the end of the Pleistocene
2. 박막 태양전지
실리콘 대신 유리와 같은 값싼 기판 위에 박막 형태의 태양 전지를 증착시킴으로써 전기를 생산하는 기술. 태양 전지 시장은 실리콘(Si)을 소재로 해 기술적 흐름을 주도하고 있지만, 최근 LCD 박막 기술 발달로 박막 태양 전지 개발이 이루어지고 있다. 시장의 80%이상을 차지하는 결정
- 사장석 [斜長石, plagioclase]
- 알루미늄·나트륨·칼슘 등이 들어 있는 규산염광물
- 무색, 흰색, 회색, 녹색을 띄며, 유리 빛이 남
- 화강암의 주요 구성성분
- 무색광물
- 휘석 [輝石, pyroxene]
- 칼슘·마그네슘·철(Ⅱ)·철(Ⅲ)·타이타늄·알루미늄 등을 함유하는 규산염