下载本文档
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、居里夫人的英文简介:居里夫人介绍英文 玛丽居里,世称"居里夫人', 法国闻名波兰裔科学家、物理学家、化学家。下面是为你整理的居里夫人的英文简介,盼望对你有用! 玛丽居里科研成就 research areas 1, found radioactive elements polonium (po) and radium (ra). 2, presented the idea that the ray (now known to be composed of electrons) is negatively charged particles. scientific results
2、 in the experimental study, mrs. curie designed a measuring instrument that not only measured the presence or absence of a substance, but also measured the strength of the ray. after repeated experiments, she found that the intensity of uranium was proportional to the amount of uranium in the substa
3、nce, regardless of the state of uranium and the external conditions. marie curie has conducted a thorough examination of the known chemical elements and all the compounds, and has obtained the important discovery that an element called thorium can also automatically emit an invisible ray, indicating
4、 that the element can emit a ray not just the characteristics of uranium, but some elements of the common characteristics. she called this phenomenon radioactive, the elements of this nature is called radioactive elements. they release the ray called radiation. at the end of 1902, mrs. curie extract
5、ed a tenth of a very pure gram of radium chloride and accurately measured its atomic weight. the existence of radium has been confirmed. radium is a very rare natural radioactive material, its body is shiny, like a fine salt-like white crystal, radium with a slight blue fluorescence, and this is the
6、 beautiful light blue fluorescence, into a womans beautiful life and unyielding faith. in spectral analysis, it is not the same as the line of any known element. although radium is not the first human discovery of radioactive elements, but it is the most radioactive elements. using its powerful radi
7、oactivity, it is possible to further identify many new properties of radiation. so that many elements get further practical application. medical research found that the radiation for a variety of different cells and tissues, the role is very different, those breeding fast cells, once the radium irra
8、diation was soon destroyed. this discovery makes radium a powerful means of treating cancer. cancer is caused by the rapid propagation of cells, the laser for its destruction than the surrounding health tissue damage much more. this new treatment soon developed in the world. in the french republic, radium therapy is known as curie therapy. the discovery of radium fundamentally changed the basic principles
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 2025年江苏省新沂市高二生物下册期末考试模拟卷(培优B卷)附答案
- 上海航空空乘机上旅客携带危险品处置模拟试卷及答案
- 绵阳市肿瘤医院招聘考试参考题库及答案解析
- 2026年广东省吴川市高二生物下册期末考试模拟试卷(精练)附答案
- 2026年司法考试真题答案及解析
- 2026年宁夏宁东开发投资有限公司公开招聘工作人员笔试参考题库及答案解析
- 2026江苏盐城市大丰区下半年区属国有企业招聘人员15人笔试备考试题及答案解析
- 2026福建水投集团宁德水务有限公司招聘5人考试备考试题及答案解析
- 2026湖南大学事业编制附属学校教师招聘8人笔试参考题库及答案解析
- 2026成都市成华区妇幼保健院面向社会公开招聘编制外工作人员6名笔试模拟试题及答案解析
- 2026基层医务人员医护人员的职业防护课件
- 新员工职场网络信息安全培训
- 2026年秋北师大版四年级上册数学全册教案(完整版含教学反思)
- (2026年秋)北师大版六年级上册数学教案
- 2026年秋季人教版小学数学二年级上册教学计划
- 咯血诊治专家共识
- 2026年税务系统遴选面试练习题附详细解析含答案(稽查版)
- 2026秋新教材粤教粤科版小学科学五年级上册(全册)教学设计(附目录p194)
- WJT9109-2026《工业电子雷管生产技术要求》
- 2026年群众文化专业人员职称考试真题
- 二次函数与一元二次方程 (课件) 2026-2027学年人教版九年级数学上册
评论
0/150
提交评论