1924年法国物理学家德布罗意在爱因斯坦光子理论的启示下,提出了一切微观实物粒子 都具有波粒二象性的假设。1927年戴维逊与革末用镍晶体反射电子,成功地完成了电子衍射 实验,验证了电子的波动性,并测得了电子的波长。两个月后,英国的汤姆逊和雷德用高速 电子穿透金属薄膜的办法直接获得了电子衍射花纹,进一步证明了德布罗意波的存在

一.细胞的发现及细胞学说的建立 英国学者罗伯特·虎克(Robert Hooke)166年在他的著作《显微图谱》中首次描述细胞 的结构。因此细胞的发现就在1665年。 18381839年,德国动物学家Schwann、植物学家 Schleiden提出细胞学说:一切 植物和动物都是由细胞组成,细胞是一切动植物的基本单位。细胞学说对生物学的发展具有 重要的作用

织物风格的概念源于“手感”和英国学者 Binns(1926年)的定义。其最初定量化地描述就是 Peirce(1930年)的积木块织物悬臂梁的弯曲模型。以手感评价为主,兼顾织物的光学风格和成形 性

A1 Husbands Wives Redefinition and adjustment of both husband's and wife's needs and values in contemporary British society. The effects of newly-emerging work patterns upon the roles of husbands and wives within the family

Objectives If the family is central to people's lives, surely their next most significant experience is their education. In this chapter we will begin with a brief survey of the development of free universal education since the last century, and then take a closer look at the main institutions in which British people are formally educated

A1 Introduction Definition of crime--Crime is behaviour that breaks those rules of a society which are codified in the criminal law. (p131) Crimes are defined and punished by statutes and by the common law oIn changing society the opportunities for people to commit crimes also change. oChanges in patterns of work, in unemployment

Abstract In Chapter Seven we continue to look at the variety of ways in which people in Britain today spend their leisure time. We especially look at excursions away from home for a short or longer break. But we first look at the transport infrastructure of Great Britain a network of airports, railway lines, motorways and other roads, which, together, connect up the even remotest parts of the country and help to make

A1 ntroduction Britain's 'mixed economy'-an economy in which there is some public ownership as well as privately owned business

hapter 10 Beliefs Religious history Around 432 Ireland converted to Christanity by St. Patrick, who brought faith from Rome His followers spread christianity to Wales, Scotland&n. England, established religious centres In Ad 496-7: the Saxons of A. England were converted to

Britain and the World Britain's primary overseas interests lay in three areas: Europe The Empire or Commonwealth The special relationship with the USA