News tagged with radioactive elements

X-ray illumination of supernova ejecta

(PhysOrg.com) -- Supernovae are the explosive deaths of massive stars, cataclysms that disburse into space the chemical elements produced by nuclear reactions inside the progenitor stars. Understanding chemical enrichment ...

dateJun 24, 2011 in Astronomy
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The importance of fundamental measurements

At the Radioactive Isotope Beam Facility (RIBF) of the RIKEN Nishina Center for Accelerator Science in Wako, a research team has measured the time it takes for 38 extremely rare isotopes to decay by half. This is the first ...

dateMay 04, 2011 in General Physics
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Health experts sound warning over iodine rush

Japan's nuclear crisis has sparked panic buying of iodine pills, with online bids exceeding $500 for a single packet, but health experts hosed down the hysteria and warned the pills are of limited use.

dateMar 15, 2011 in Other
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Tracing the history of Earth

Although scientists have a general idea of when major events occurred during Earth’s 4.5-billion-year history, geologists would like to be able to pinpoint the exact dates of those events. Precise dates for the sequence ...

dateNov 03, 2010 in Earth Sciences
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