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STAR CHEMISTRY. “Advances in experimental techniques that measure nuclear reactions that occur in stars are opening new opportunities for understanding the stellar and chemical evolution of our Universe.” https://lnkd.in/e3QFknM View in LinkedIn

DUAL USE TECHNOLOGY. “The first experimental evidence that elements (really nuclei) can change from one type to another occurred some half-century ago during the basic research that led ultimately to the development of the atomic bomb.” https://lnkd.in/eGDp3CB View in LinkedIn

ARTIFICIAL SYNTHESIS. “Rutherford was the first to transform one element into another: nitrogen plus helium —> oxygen and hydrogen. Since then, a number of artificial elements have been generated.” https://physics.info/nucleosynthesis/ View in LinkedIn

THE PERIODIC TABLE of the elements showing stellar origin of each element, such as the Big Bang, Supernovae, Large Stars, Small, Stars and Cosmic Rays. A brilliant and very original compilation. https://lnkd.in/gYqQejP View in LinkedIn

CHEMICAL EVOLUTION OF GALAXIES. “Galactic chemical evolution (GCE), in particular, has provided stringent constraints on stellar yields. Different elements are produced from stars on different timescales. Therefore, elemental and isotopic abundance ratios evolve as a function of time in a galaxy.” https://lnkd.in/gg9biYa View in LinkedIn

“THE CNO CYCLE refers to the Carbon-Nitrogen-Oxygen cycle, a process of stellar nucleosynthesis in which stars on the Main Sequence fuse hydrogen into helium via a six-stage sequence of reactions.” C12 —> N13 —> C13 —> N14 —> O15 —> N15 —> C12. “Thus, the carbon-12 nucleus used in the initial reaction is regenerated in the final one and hence acts as a catalyst for the whole cycle. Stars of lower mass convert hydrogen to helium via an alternative process known as the ‘proton-proton chain’.“ https://lnkd.in/gfyaz5f View in LinkedIn

PERIODIC TABLE. A thoughtful summary of the understanding of the evolution of the elements of the Periodic Table, except for the conclusions. https://lnkd.in/gx-8DrP View in LinkedIn

BUILDING ELEMENTS. “Then we build our way up through the periodic table creating heavier and heavier things through different types of processes. In some cases we just add a proton and it grows. In other cases we add a bunch of neutrons and these neutrons decide to flip what they are between protons decaying through a process called the reverse beta decay.” http://www.astronomycast.com/transcripts/AstroCast-080922_transcript.pdf View in LinkedIn

“NEUTRONS in the core. You end up with things like helium-4 which is a helium atom which is number 2 on the periodic table. That 4 means that it has four bits, two protons and two neutrons sitting in its nucleus. Helium-4 is like one of the most stable things that you get.” http://www.astronomycast.com/transcripts/AstroCast-080922_transcript.pdf View in LinkedIn

NEXT PART. “But the thing is there’s also this thing called a Neutron. Some atoms in order to be stable have to have both protons and neutrons.” http://www.astronomycast.com/transcripts/AstroCast-080922_transcript.pdf View in LinkedIn