摘要:

Frank B. Jewett, former president of the National Academy of Sciences and of the Bell Telephone Laboratories, died November 18 at the age of seventy.

ISSN:0031-9228    

DOI:10.1063/1.3066338

出版商:AIP    

年代:1949

数据来源: AIP

摘要:

In the development of detectors of infrared radiation, mere empirical improvements are no longer sufficient.

ISSN:0031-9228    

DOI:10.1063/1.3066340

出版商:AIP    

年代:1949

数据来源: AIP

摘要:

An increasing number of scientists and engineers are finding need for instruments to observe events from remote stations.

ISSN:0031-9228    

DOI:10.1063/1.3066344

出版商:AIP    

年代:1949

数据来源: AIP

摘要:

It is common practice to tune a piano just before an artist performs on it. One reason is that humidity in the air causes the wood structure to swell, thus altering the tension on the strings with changes in humidity.

ISSN:0031-9228    

DOI:10.1063/1.3066346

出版商:AIP    

年代:1949

数据来源: AIP

摘要:

Beginning with the work of Mendel or, more accurately, with its rediscovery at the turn of the century, there has been a steady increase in the application of probability theory to genetics, carried out in recent years by Haldane, DeWinton, Sansone, Mather, Geiringer, and others.

ISSN:0031-9228    

DOI:10.1063/1.3066347

出版商:AIP    

年代:1949

数据来源: AIP

ISSN:0031-9228    

DOI:10.1063/1.3066348

出版商:AIP    

年代:1949

数据来源: AIP