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As a follow-up, here is more information on nuclear power in Finland and plans for final disposal.
On this day in 1896 French physicist Henri Becquerel (15 December 1852 – 25 August 1908) discovered the principle of radioactive decay when he exposed...
The National Physical Laboratory [NPL] has been officially declared by the European Physical Society Historic Site as the birthplace of atomic timekeeping.
New theoretical calculations show that an x-ray free-electron-laser pulse can generate transitions in excited nuclei via an indirect process involving electron capture.
An interesting new field to explore for x-ray free-electron laser researchers.
CC-BY-ND Six new chemical elements were produced at GSI. Sigurd Hofmann is one of the discoverers and shows how sophisticated you have to be to create a new ...
Atomic nuclei are governed by laws quite distinct from those that regulate atomic electrons, which constitute the outer part of atoms and which are immediately responsible for light, chemistry and thus life. Yet there are sporadic regions of contact between these disparate realms. JQI Adjunct Fellow Marianna Safronova and her collaborators have been exploring one area of nuclear-atomic overlap for the isotope thorium-229.
In 2011, 100 new nuclides were discovered. They joined the approximately 3,000 stable and radioactive nuclides that either occur naturally on Earth or are synthesized in the laboratory. Every atomic nucleus, characterized by a specific number of protons and neutrons, occupies a spot on the chart of nuclides, which is bounded by /`drip lines/' indicating the values of neutron and proton number at which nuclear binding ends. The placement of the neutron drip line for the heavier elements is based on theoretical predictions using extreme extrapolations, and so is uncertain. However, it is not known how uncertain it is or how many protons and neutrons can be bound in a nucleus. Here we estimate these limits of the nuclear /`landscape/' and provide statistical and systematic uncertainties for our predictions. We use nuclear density functional theory, several Skyrme interactions and high-performance computing, and find that the number of bound nuclides with between 2 and 120 protons is around 7,000. We find that extrapolations for drip-line positions and selected nuclear properties, including neutron separation energies relevant to astrophysical processes, are very consistent between the models used.
Science And Things From The NPR Science Desk
Conference: 15 Jul 2014 - 17 Jul 2014, University of York, York, Y010 5DD, United Kingdom. Organized by IOP Nuclear Physics Group.
The universe is the grandest merger story that there is. Complete with mysterious origins, forces of light and darkness, and chemistry…
A mythology of the stars
A new book by Princeton University historian Angela Creager explains how knowledge and technology that grew out of the Manhattan Project paved the way for important…
This list of recommended actions for auxiliary police officers trying to quell panic in their communities was part of a 1951 booklet published by the New York State Police in 1951. I found the pamphlet in the collections of San Francisco’s Prelinger Library.
Great piece of history!
MEISTeR - named from "maintenance equipment integrated system of telecontrol robot" has been developed to perform maintenance, repair and other tasks at disaster or severe accident sites.MHI began full demonstration testing of the robot...
Robert Tribble, a widely respected physicist who has played a key role in charting the future direction of nuclear science in the U.S., has been named Deputy Director for Science & Technology at Brookhaven National Laboratory, effective February 24, 2014.
Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have tested a new approach to fabricating spin valves. Using ion beams, the researchers have succeeded in structuring an iron aluminium alloy in such a way as to subdivide the material into individually magnetizable regions at the nanometer ...
Structuring an iron aluminium alloy into individually magnetizable regions at the nanometer scale.
Monkey study uses labelled antibodies and routine imaging to track infection and lingering reservoirs of virus.