| 20-Year-Old High-Temperature Superconductivity Theory Verified ?
A French-German team of experimental scientists claims that it has verified the central prediction of a theory on high-temperature superconductivity developed by Chandra Varma (picture), distinguished professor of physics at UC Riverside (USA).
Extract :
' [Chandra Varma's] theory concluded that the quantum-mechanical fluctuations are the fluctuations of these current loops. (...)
Bourges's group directly observed the current loops in experiments involving the diffraction of polarized neutrons. In these experiments a beam of neutrons changes direction as well as the direction of its magnetization in a manner that is closely related to the geometrical arrangement of the current loops inside the material in which the beam is made to pass (...) '
[ full text on physorg.com ]
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Are parents more successful engineers and scientists ?
Engineers and scientists with children are more successful in their career than their colleagues without children.
This is true for men as 62% of fathers are successful against 34% of childless men, but also for ladies as 38% of mothers but only 27% of childless women are successful.
Mothers seem to achieve this under difficult conditions, as only 4% of them indicated to live with a partner.
These are some results from a German report also showing that highly qualified women are particulary disadvantaged by the reigning working culture.
[ PDF : the complete report (in German) ]
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Carbon nanotubes : the hottest topic in physics according to new ranking
Carbon nanotubes are the hottest topic in physics, according to a new way of ranking the popularity of different scientific fields. Nanowires are second, followed by quantum dots, fullerenes, giant magnetoresistance, M-theory and quantum computation.
The new ranking has been developed by Michael Banks, a PhD student at the Max Planck Institute for Solid-State Physics in Stuttgart, Germany.
He thinks the new index could be a quick and simple way of determining the most important subject areas in physics and could even help graduate students choose which field to do their PhD (...)
[ full text on Physicsweb.org ]
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