摘要:

MANY YOUNGER PHYSICISTSfeel that all physics has grown up since World War II; or if they admit some earlier science, they feel that in this country everything started with the influx of European scientists as a result of political difficulties, beginning with the rise of Hitler in 1933, in Germany and Italy.

ISSN:0031-9228    

DOI:10.1063/1.3034740

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

IF YOU TALK TO ABritish physicist, one of the problems he is likely to speak about is the failure of British universities to supply enough physicists to industry and the failure of industry to attract, use and hold those it gets. Having bumped into the problem frequently when I was in Britain in 1966, I went back again recently with the special intention of asking about it. The problem remains; many persons are worrying about it and studying it; correction programs are in operation; others are starting or being planned.

ISSN:0031-9228    

DOI:10.1063/1.3034742

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

DURING THE ACADEMIC YEAR1961–62, the only year for which reliable information has been collected, almost 190 000 students were enrolled in the first term of one of approximately 1700 introductory physics courses offered by the nation's two‐ and four‐year colleges, universities and technical institutes. A reasonable extrapolation of these figures from the intervening six years suggests that this spring and summer about 2000 physics professors must decide either to continue using their present introductory texts or to select a new one from among a dozen or two that are intended for their particular kind of introductory course. These decisions determine what books are purchased by well over 200 000 students next fall, and how the $1 or $2 million gross receipts from the sale of new introductory physics textbooks are distributed among the various publishers.

ISSN:0031-9228    

DOI:10.1063/1.3034743

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

PERHAPS THE PARADOXof entropy is that it has so long a history and yet so many remaining puzzles. We might say that the roots of its history go back even to primitive man. In his struggle for existence he used crude appliances and discovered fire. From closer intimacy with more and more developed machines sprang mechanics, and from fire came the theory of heat; the two were quite separate sciences.

ISSN:0031-9228    

DOI:10.1063/1.3034744

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

APRECEDENT‐BREAKINGjoint annual meeting of the American Physical Society and American Association of Physics Teachers will take place Monday through Thursday, 29 Jan.–1 Feb. at the 25‐story Palmer House and the auxiliary La Salle Hotel in downtown Chicago. It will be the first joint annual meeting ever held in Chicago and the first such occasion at which the APS divisions themselves take responsibility for organizing their own symposia. It will also be the first regular meeting of the newly formed APS division of particles and fields, the culmination of the first AAPT teaching film competition, the first society gathering at which problems of physics and society are intensively treated and the first time APS members will have an opportunity to consider proposals that would broaden their constitution to include discussion of public issues.

ISSN:0031-9228    

DOI:10.1063/1.3034745

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

Several experiments, either in preparation or in operation, may provide further evidence for deciding between general relativity and the scalar‐tensor theories of gravitation.

ISSN:0031-9228    

DOI:10.1063/1.3034686

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

The first direct measurement of the electron affinity of helium has been reported by a team of physicists at the Joint Institute for Laboratory Astrophysics at Boulder, Colorado. This parameter represents the binding energy of an extra electron that may attach to an atom to form a negative ion.

ISSN:0031-9228    

DOI:10.1063/1.3034687

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

The atmosphere of Venus is almost all carbon dioxide; below the atmosphere the climate is very dry and hot, and the pressure is 15 to 20 times that on earth. This is the forbidding picture of Venusian meteorological conditions that has emerged from the data sent back by Russia's Venus IV spacecraft and by the US Mariner V.

ISSN:0031-9228    

DOI:10.1063/1.3034689

出版商:AIP    

年代:1968

数据来源: AIP

摘要:

Another long baseline radio interferometer is in operation, the first one in the southern hemisphere. The linkup (similar to those described inPHYSICS TODAY, November 1967, page 69) is between two NASA Deep Space Stations in Australia, one near Woomera in South Australia and one near Canberra in New South Wales. Its baseline is more than9×106wavelengths long at 2295 MHz. Preliminary observations of radio source 3C 273 show that the interferometer has an angular resolution better than 0.008 sec of arc.

ISSN:0031-9228    

DOI:10.1063/1.3034691

出版商:AIP    

年代:1968

数据来源: AIP

ISSN:0031-9228    

DOI:10.1063/1.3034692

出版商:AIP    

年代:1968

数据来源: AIP