Because of their enormous size, elephants have long been irresistible for kings as symbols of their eminence. In early civilizations – such as Egypt, Mesopotamia, the Indus Civilization, and China – kings used elephants for royal sacrifice, spectacular hunts, public display of live captives, or the conspicuous consumption of ivory – all of them tending toward the elephant's ext...(展开全部)

Because of their enormous size, elephants have long been irresistible for kings as symbols of their eminence. In early civilizations – such as Egypt, Mesopotamia, the Indus Civilization, and China – kings used elephants for royal sacrifice, spectacular hunts, public display of live captives, or the conspicuous consumption of ivory – all of them tending toward the elephant's ext...(展开全部)

Because of their enormous size, elephants have long been irresistible for kings as symbols of their eminence. In early civilizations – such as Egypt, Mesopotamia, the Indus Civilization, and China – kings used elephants for royal sacrifice, spectacular hunts, public display of live captives, or the conspicuous consumption of ivory – all of them tending toward the elephant's ext...(展开全部)

Because of their enormous size, elephants have long been irresistible for kings as symbols of their eminence. In early civilizations – such as Egypt, Mesopotamia, the Indus Civilization, and China – kings used elephants for royal sacrifice, spectacular hunts, public display of live captives, or the conspicuous consumption of ivory – all of them tending toward the elephant's ext...(展开全部)

约翰•迪克森•卡尔，和阿加莎•克里斯蒂、埃勒里•奎因并称“推理黄金时代三大家”，独以密室题材构思见长，一生设计出五十余种不同类型的密室，被誉为“密室之王”。 一九三三年，卡尔出版基甸•菲尔博士系列首部作品《女巫角》。第二年他以笔名卡特•迪克森发表《瘟疫庄谋杀案》，亨利•梅利维尔爵士登场。这两个系列成为卡尔最具代表性的作品。三十年代是卡尔创作生涯最多产的时期，其中《三口棺材》《扭曲的铰链》（旧译《歪曲的枢纽》）和《犹大之窗》被后世评论家归入“卡尔的经典代表作”。特别是一九三五年出版的《三口棺材》以经典的“密室讲义”和“双重密室”成为推理史上不可能犯罪小说的巅峰之作，至今仍难以超越。 卡尔笔下的密室第一神探基甸•菲尔博士，是一个胖胖的字典编纂者，走路要拄两根拐杖，喜欢穿斗篷，抽着海泡石烟斗，个性相当和蔼可亲。他有着敏锐的观察力，善于分析罪犯的心理，出场代...(展开全部)

约翰•迪克森•卡尔，和阿加莎•克里斯蒂、埃勒里•奎因并称“推理黄金时代三大家”，独以密室题材构思见长，一生设计出五十余种不同类型的密室，被誉为“密室之王”。 一九三三年，卡尔出版基甸•菲尔博士系列首部作品《女巫角》。第二年他以笔名卡特•迪克森发表《瘟疫庄谋杀案》，亨利•梅利维尔爵士登场。这两个系列成为卡尔最具代表性的作品。三十年代是卡尔创作生涯最多产的时期，其中《三口棺材》《扭曲的铰链》（旧译《歪曲的枢纽》）和《犹大之窗》被后世评论家归入“卡尔的经典代表作”。特别是一九三五年出版的《三口棺材》以经典的“密室讲义”和“双重密室”成为推理史上不可能犯罪小说的巅峰之作，至今仍难以超越。 卡尔笔下的密室第一神探基甸•菲尔博士，是一个胖胖的字典编纂者，走路要拄两根拐杖，喜欢穿斗篷，抽着海泡石烟斗，个性相当和蔼可亲。他有着敏锐的观察力，善于分析罪犯的心理，出场代...(展开全部)

Today complex numbers have such widespread practical use - from electrical engineering to aeronautics - that few people would expect the story behind their derivation to be filled with adventure and enigma. In "An Imaginary Tale", Paul Nahin tells the 2000-year-old history of one of mathematics' most elusive numbers, the square root of minus one, also known as i. He recreates t...(展开全部)

Today complex numbers have such widespread practical use - from electrical engineering to aeronautics - that few people would expect the story behind their derivation to be filled with adventure and enigma. In "An Imaginary Tale", Paul Nahin tells the 2000-year-old history of one of mathematics' most elusive numbers, the square root of minus one, also known as i. He recreates t...(展开全部)

When I was born, there were a million elephants roaming Africa. By the time my daughter Charlotte was born in 2015, the numbers of savannah elephants had crashed to just 350,000. At the current pace of illegal poaching, when Charlotte turns twenty-five the African elephant could be gone from the wild. HRH Prince William, Duke of Cambridge An elephant is killed in Africa every...(展开全部)