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Physics Problem Deepens: Astrophysicists Puzzled for Decades Rule Out All Proposed Explanations
(scitechdaily.com)
Two prominent X-ray emission lines of highly charged iron have puzzled astrophysicists for decades: their measured and calculated brightness ratios always disagree. This hinders good determinations of plasma temperatures and densities. New, careful high-precision measurements, together with top-leve...
Do-It-Yourself COVID-19 Vaccines Fraught With Legal, Ethical, and Public Health Problems
(scitechdaily.com)
Well-intentioned “citizen scientists” developing homemade COVID-19 vaccines may believe they’re inoculating themselves against the ongoing pandemic, but the practice of self-experimentation with do-it-yourself medical innovations is fraught with important legal, ethical, and public...
Updated Periodic Table: Russian Scientists Propose New Way of Ordering the Elements
(scitechdaily.com)
The periodic table of the elements, principally created by the Russian chemist, Dmitry Mendeleev (1834-1907), celebrated its 150th anniversary last year. It would be hard to overstate its importance as an organizing principle in chemistry – all budding chemists become familiar with it from the earli...
MIT Twitter Experiment Shows Clear Self-Selection Into Social Media “Echo Chambers” Due to Political Preferences
(scitechdaily.com)
MIT researchers found that shared political views significantly increase the likelihood of forming social ties on Twitter, revealing how partisanship drives online echo chambers. It is no secret that U.S. politics is polarized. An experiment conducted by MIT researchers now shows just how deeply pol...