The Chinese art I chose, Bodhisattva, has a size of about two feet tall and six inches wide. It is made of limestone which was considered in ancient China as a material that is above wood or earthenware, but not as precious as jade or bronze. I believe the art was made of limestone in order for it to last longer than wood or earthenware, providing protection to pertain its exact form. Plus, it wo
Limestone. Messy, but innocuous.
Andrew submits the report to the Judge.
JOE
Innocuous?
ANDREW
Defined by Websters as harmless.
JOE
I know what it means. Your
Honor, imagine how the children
in this neighborhood have been
made to feel. The pounding of
construction ringing in their
ears as this skyscraper, a
tribute to mankinds greed,
grows daily, casting an ominous
shadow over their lives, fillin
limestone
Natural hazards:
frequent earthquakes, occasionally severe especially in north and west; flooding along the Indus after heavy rains (July and August)
Environment - current issues:
water pollution from raw sewage, industrial wastes, and agricultural runoff; limited natural freshwater resources; most of the population does not have access to potable water; deforestation; soil erosion;
limestone,CaCo3), 탄산나트륨(Na2Co3)이 주성분이 된다. 유리는 광 투과성이 좋기 때문에 렌즈로 많이 사용된다. 종류에 따라 굴절률이 조금씩 다른데 대략 1.458~2.00사이에 위치한다. 전기를 잘 통하지 않기 때문에 절연체(insulator)로도 잘 쓰인다. 다른 물질과의 화학적 반응은 거의 없기 때문에 (일반적인 유리
1. 암석과 광물
그림 . 암석
ㆍ암석(rock)
- 광물들이 자연적으로 모여 이루어진 고체
- 인공적으로 만든 광물을 합성한 것이 아니라 자연적으로
만들어진 것이어야 함
ㆍ광물(mineral)
- 일정한 화학조성과 결정구조를 가짐
그림 . 조암광물
- 인공적으로 만든 결정은 광물이 아님
- 광