31、意大利科学家阿伏加德罗最先提出了分子的概念。32、1876年英国科学家贝尔发明有线电话。33、美国发明家爱迪生一生发明了电灯、留声机、发报机、电影、电车、蓄电池等1093项专利。1882年爱迪生建立了第一个发电站,开创了电照明的新时代。34、1887年,德国物理学家赫兹用实验证实了电磁波的存在,并证明了电磁波和光波的一致性。35、1896年法国物理学家贝克勒耳发现放射性现象。 31. Italian scientist Avogadro first proposed the concept of molecules. 32. In 1876, British scientist Bell invented a wired telephone. 33. American inventor Edison invented 1093 patents such as lights, gramophones, transmitters, movies, electric cars and batteries. In 1882 Edison established the first power station, creating a new era of electric lighting. In 34 and 1887, the German physicist Hertz confirmed the existence of electromagnetic waves and proved the consistency of electromagnetic waves and light waves. 35. In 1896, the French physicist Baker Lear discovered radioactivity.