ISSN:0031-9228    

DOI:10.1063/1.2408506

出版商:AIP    

年代:1902

数据来源: AIP

ISSN:0031-9228    

DOI:10.1063/1.1537890

出版商:AIP    

年代:1902

数据来源: AIP

ISSN:0031-9228    

DOI:10.1063/1.1537891

出版商:AIP    

年代:1902

数据来源: AIP

摘要:

This year's Nobel Prize in Physics goes to three men who have created and peered through new windows on the cosmos. Half the prize is awarded to Riccardo Giacconi, director of Associated Universities Inc, in Washington, DC, “for pioneering contributions to astrophysics, which have led to the discovery of cosmic x‐ray sources.” The other half is shared between Raymond Davis Jr, retired from Brookhaven National Laboratory, and Masatoshi Koshiba, retired from the University of Tokyo. They are cited “for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos.”

ISSN:0031-9228    

DOI:10.1063/1.1537897

出版商:AIP    

年代:1902

数据来源: AIP

摘要:

John Fenn, Koichi Tanaka, and Kurt Wu¨thrich will receive the 2002 Nobel Prize in Chemistry for helping to develop tools for the study of large biological molecules. Fenn, a professor of chemistry at Virginia Commonwealth University in Richmond and professor emeritus of Yale University, and Tanaka, an R&D engineer with Shimadzu Corp in Kyoto, Japan, will share half of the prize for “their development of soft desorption ionization methods for mass spectrometric analyses of biological macromolecules.” Wu¨thrich, a professor of molecular biophysics at ETH Zu¨rich, will receive the other half for “his development of nuclear magnetic resonance spectroscopy for determining the three‐dimensional structure of biological macromolecules in solution.”

ISSN:0031-9228    

DOI:10.1063/1.1537898

出版商:AIP    

年代:1902

数据来源: AIP

摘要:

The hapless Humpty Dumpty often crops up as a metaphor for the second law of thermodynamics. Having fallen off his wall, Humpty really can't be put back together again. Even if one could trace every broken bit of him back through time, it would be impossible to propel those fragments with precisely the right momentum to restore Humpty to his prelapsarian state.

ISSN:0031-9228    

DOI:10.1063/1.1537899

出版商:AIP    

年代:1902

数据来源: AIP

摘要:

When President Bush sent his fiscal year 2003 budget proposal to Capitol Hill last February, House Science Committee Chairman Sherwood Boehlert (R‐N.Y.) noted the 17&percent; increase proposed for the National Institutes of Health and the 5&percent; offering for NSF and wasn't happy. Describing the NSF funding proposal as “anemic,” Boehlert observed that “just the increase in the NIH budget is larger than the research budget of NSF.”

ISSN:0031-9228    

DOI:10.1063/1.1537900

出版商:AIP    

年代:1902

数据来源: AIP

摘要:

The ultraviolet free electron laser (FEL) at Duke University is being stretched technically in two directions: An upgrade to the laser‐based High Intensity Gamma‐ray Source (HI&ggr;S,pronounced “higgs”) promises to deliver more flux, higher energy, and circular polarization; and, at lower energies, a team of Duke physicists has coaxed the laser to produce soft x rays.

ISSN:0031-9228    

DOI:10.1063/1.1537901

出版商:AIP    

年代:1902

数据来源: AIP

摘要:

Being lauded on the House floor by Representative Edward Markey stands out as the high point of Kristen Kulinowski's term as a congressional fellow in the Massachusetts Democrat's office. Markey praised her work on legislation that requires the federal government to make potassium iodide available to communities near nuclear power reactors. In the event of a nuclear emergency, people would swallow the iodide to protect their thyroids. “It's very unusual to actually see legislation you've helped draft be passed and signed by the president during the one‐year term of the fellowship,” says Kulinowski. “We think that September 11th had a lot to do with being able to move this forward. The idea of a plane crashing into a reactor became a greater reality in the public mind.”

ISSN:0031-9228    

DOI:10.1063/1.1537902

出版商:AIP    

年代:1902

数据来源: AIP

摘要:

Cutting‐edge laser science, the role of research in industry, and the use of technology to fight terrorism were some of the topics of discussion for attendees at the 2002 Industrial Physics Forum and its academic‐industrial workshop, held 27‐29 October in Williamsburg, Virginia.

ISSN:0031-9228    

DOI:10.1063/1.1537903

出版商:AIP    

年代:1902

数据来源: AIP