写一些发明 并写出用处 用英语

1)电灯泡invention:light bulbinventor:Thomas Edisondate:December 1879function:make light2)微波炉invention:Microwave oveninventor:The heating effect of microwaves was discovered in 1945 by Percy Spencer。Raytheon company built the first microwave oven in the world in 1947date:1945-microwave; 1947-first microwave ovenfunction:heat food using microwave radiation3)DNA双螺旋结构invention:the double helix structure of DNAinventor:James Watson and Francis Crickdate:1953function:。囧4)手电筒invention:torch/flashlight/electric torchinventor:David Misell。American Electrical Novelty and Manufacturing Company obtained U。S。Patent No。6一7,五9二 (filed 12 March 1八9八) on January 10,一8九9date:一8九9function:hand-held electric-powered light source5)空调air conditioner好长,自己去看吧http冒号//en点wikipedia点org/wiki/Air_conditionerreference from 喂鸡百科（其实上喂鸡,搜一搜就都有了）