1. 1 Chemistry is a central science Transparent matrixof- Electrical energy from processed silicon a fossil fuel or nuclear power plant Chemically disinfected Metal allo drinking water Caffeine soluticn Roasting carbohydrates, Thermoset polymer ats, proteins, and vitamins +Natural gas laced with poriferous sulfur Prescription medicines compounds stored in refrigerator Fertilizer grown vegetables Chlorofluorocarbon-free refrigerating fluids Most of the material items in any modern house are shaped by some human-devised chemical process
1.1 Chemistry is a central science useful to our lives Most of the material items in any modern house are shaped by some human-devised chemical process
Chemistry and Materials science B-2战略轰炸机 每架造价高达22亿美元的B-2战略轰炸机,是世上迄 今最昂贵的飞机。机身采用翼身融合、无尾翼的飞 翼构形,机翼前缘交接于机头处,机翼后缘呈锯齿 形。机身机翼大量采用石墨-碳纤维复合材料、蜂窝 状结构,表面有吸波涂层,发电机的喷口置于机翼 上方。这种独特的外形设计和材料,能有效地躲避 雷达的探测,达到良好的隐形效果
Chemistry and Materials Science B-2战略轰炸机 每架造价高达22亿美元的B-2战略轰炸机,是世上迄 今最昂贵的飞机。机身采用翼身融合、无尾翼的飞 翼构形,机翼前缘交接于机头处,机翼后缘呈锯齿 形。机身机翼大量采用石墨-碳纤维复合材料、蜂窝 状结构,表面有吸波涂层,发电机的喷口置于机翼 上方。这种独特的外形设计和材料,能有效地躲避 雷达的探测,达到良好的隐形效果
Chemistry A Science for the 21St Century Materials and Technology Polymers, ceramics, liquid crystals Room-temperature superconductors? Molecular computing? Food and agriculture Genetically modified crops Natural pesticides Specialized fertilizers
Chemistry: A Science for the 21st Century • Materials and Technology • Polymers, ceramics, liquid crystals • Room-temperature superconductors? • Molecular computing? • Food and Agriculture • Genetically modified crops • “Natural” pesticides • Specialized fertilizers 1.1
Chemistry and biological science Sugar- phosphate backbone O-…-H 「H H 日ases H3c TA 胸腺嘧啶(T) 腺嘌呤(A) H -H----o 冲■ Hydrogen N…HN bonds H between bases DNA Double helix 胞嘧啶(C) 鸟嘌呤(G)
Chemistry and Biological Science DNA Double Helix N O H O H3C H N N N N N H H H 胸腺嘧啶(T) 腺嘌呤(A) N N O H N N N O N H H H H H H 胞嘧啶(C) 鸟嘌呤(G)
Chemistry and environmental Science 1995年诺贝尔化学奖授予三位大气环境化 学家[墨西哥] Molina、[美] Rowland、[荷 兰] crutzen。他们首先提出了平流层臭氧 破坏的化学机制,包括Nox理论 ( crutzen)和CFCs( Rowland和 Molina) 理论。这些理论对南极“臭氧洞”的发 现,并导致《蒙特利尔议定书》的签定, 为保护全球环境作出了重大贡献
Chemistry and Environmental Science 1995年诺贝尔化学奖授予三位大气环境化 学家[墨西哥] Molina、[美] Rowland、[荷 兰] Crutzen。他们首先提出了平流层臭氧 破坏的化学机制,包括Nox理论 (Crutzen)和CFCs (Rowland和Molina) 理论。这些理论对南极“臭氧洞”的发 现,并导致《蒙特利尔议定书》的签定, 为保护全球环境作出了重大贡献