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American Journal of Science and Arts最新文献

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On the vapor-densities of peroxide of nitrogen, formic acid, acetic acid, and perchloride of phosphorus 氮的过氧化物、甲酸、乙酸和过氯磷的蒸气密度
American Journal of Science and Arts Pub Date : 1879-10-01 DOI: 10.2475/ajs.s3-18.106.277
J. Gibbs
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引用次数: 3
On radiant matter; a lecture delivered to the British Association for the Advancement of Science, at Sheffield, Friday, August 22, 1879 关于辐射物质;这是1879年8月22日星期五在谢菲尔德向英国科学促进会所作的演讲
American Journal of Science and Arts Pub Date : 1879-10-01 DOI: 10.2475/ajs.s3-18.106.241
W. Crookes
{"title":"On radiant matter; a lecture delivered to the British Association for the Advancement of Science, at Sheffield, Friday, August 22, 1879","authors":"W. Crookes","doi":"10.2475/ajs.s3-18.106.241","DOIUrl":"https://doi.org/10.2475/ajs.s3-18.106.241","url":null,"abstract":"To throw light on the title of this lecture I must go back more than sixty years-to 1816. Faraday, then a mere student and ardent experimentalist, was 24 years old, and at this early period of his career he delivered a series of lectures on the General Properties of Matter, and one of them bore the remarkable title, On Radiant Matter. The great philosopher's notes of this lecture are to be found in Dr. Bence Jones's \"Life and Letters of Faraday,\" and I will here quote a passage in which he first employs the expression Radiant Matte?','-","PeriodicalId":7651,"journal":{"name":"American Journal of Science and Arts","volume":"241 1","pages":"241 - 262"},"PeriodicalIF":0.0,"publicationDate":"1879-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76947443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
New observations on planetoids 对小行星的新观察
American Journal of Science and Arts Pub Date : 1879-09-01 DOI: 10.2475/AJS.S3-18.105.209
C. Peters
{"title":"New observations on planetoids","authors":"C. Peters","doi":"10.2475/AJS.S3-18.105.209","DOIUrl":"https://doi.org/10.2475/AJS.S3-18.105.209","url":null,"abstract":"","PeriodicalId":7651,"journal":{"name":"American Journal of Science and Arts","volume":"216 1","pages":"209 - 210"},"PeriodicalIF":0.0,"publicationDate":"1879-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73630352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
On a possible cause of variation in the proportion of oxygen in the air 关于空气中氧气比例变化的可能原因
American Journal of Science and Arts Pub Date : 1879-09-01 DOI: 10.2475/ajs.s3-18.105.168
E. W. Morley
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引用次数: 0
On the color correction of achromatic telescopes 消色差望远镜的色彩校正
American Journal of Science and Arts Pub Date : 1879-09-01 DOI: 10.2475/AJS.S3-18.105.189
W. Harkness
{"title":"On the color correction of achromatic telescopes","authors":"W. Harkness","doi":"10.2475/AJS.S3-18.105.189","DOIUrl":"https://doi.org/10.2475/AJS.S3-18.105.189","url":null,"abstract":"ALTHOUGH much has been written on the theory of the achromatic telescope, I am not aware that any attempt has hitherto been made to treat the color correction rigorously as a function of the wave length of the light; and, on that account, much obscurity, and some positive error, has crept into the text books on the subject. The theory given in the following pages is based upon fundamental equations which neglect the thickness of the lenses, as has always been done heretofore, and which suffice to give the refractive indexes to scarcely more than four places of decimals. All the subsequent operations upon these equations are rigorously accurate; and it would have been useless to attempt greater precision in the refractive indexes, while the thickness of the lenses is neglected. .As achromatic telescopic objectives are usually composed of two lenses, rarely of three, and hardly ever of a greater number; it has been thought sufficient to write the equations in the form applicable to triple objectives, but no difficulty will be experienced in extending them to a greater number of lenses, when necessary. Our fundamental equations are","PeriodicalId":7651,"journal":{"name":"American Journal of Science and Arts","volume":"51 1","pages":"189 - 196"},"PeriodicalIF":0.0,"publicationDate":"1879-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86677321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The pertinacity and predominance of weeds 杂草的顽强和优势
American Journal of Science and Arts Pub Date : 1879-09-01 DOI: 10.2475/AJS.S3-18.105.161
A. Gray
{"title":"The pertinacity and predominance of weeds","authors":"A. Gray","doi":"10.2475/AJS.S3-18.105.161","DOIUrl":"https://doi.org/10.2475/AJS.S3-18.105.161","url":null,"abstract":"","PeriodicalId":7651,"journal":{"name":"American Journal of Science and Arts","volume":"107 1","pages":"161 - 167"},"PeriodicalIF":0.0,"publicationDate":"1879-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79347897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 42
Observations on the genus Macropis 标题大头蛇属植物的观察
American Journal of Science and Arts Pub Date : 1879-09-01 DOI: 10.2475/AJS.S3-18.105.211
W. H. Patton
{"title":"Observations on the genus Macropis","authors":"W. H. Patton","doi":"10.2475/AJS.S3-18.105.211","DOIUrl":"https://doi.org/10.2475/AJS.S3-18.105.211","url":null,"abstract":"","PeriodicalId":7651,"journal":{"name":"American Journal of Science and Arts","volume":"10 1","pages":"211 - 214"},"PeriodicalIF":0.0,"publicationDate":"1879-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80959521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
On the size of molecules 取决于分子的大小
American Journal of Science and Arts Pub Date : 1879-08-01 DOI: 10.2475/AJS.S3-18.104.135
N. Hodges
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引用次数: 1
Magnetic strains in iron 铁中的磁应变
American Journal of Science and Arts Pub Date : 1879-08-01 DOI: 10.2475/AJS.S3-18.104.99
A. Kimball
{"title":"Magnetic strains in iron","authors":"A. Kimball","doi":"10.2475/AJS.S3-18.104.99","DOIUrl":"https://doi.org/10.2475/AJS.S3-18.104.99","url":null,"abstract":"","PeriodicalId":7651,"journal":{"name":"American Journal of Science and Arts","volume":"1 1","pages":"106 - 99"},"PeriodicalIF":0.0,"publicationDate":"1879-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89293143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On a method of swinging pendulums for the determination of gravity, proposed by M. Faye 费耶先生提出的用摆锤测定重力的方法
American Journal of Science and Arts Pub Date : 1879-08-01 DOI: 10.2475/ajs.s3-18.104.112
C. Peirce
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引用次数: 0
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