Eric Walker added Cloud Wars: Mideast Rivalries Rise Along a New Front - The New York Times to Silver iodide, and added Silver iodide to Silver and Iodine
Eric Walker added Silver iodide and Silver as an antimicrobial agent to Silver, and added Silver to Metals and Chemical elements
Eric Walker added a number of topics and We found a new type of stellar explosion that could explain a 13-billion-year-old mystery of the Milky Way's elements and Is It Time to Upend the Periodic Table? - The New York Times to Chemical elements, and added Chemical elements to Chemistry and Atoms, molecules, chemicals, minerals, materials and compounds
Eric Walker added a number of topics and a number of links to Metals, and added Metals to Atoms, molecules, chemicals, minerals, materials and compounds