Eric Walker added Manganese - Wikipedia to Manganese

Eric Walker added The Romans Called it ‘Alexandrian Glass.’ Where Was It Really From? - The New York Times to a number of topics

Eric Walker added Bacterial chemolithoautotrophy via manganese oxidation | Nature to Manganese and Bacteria

Eric Walker added We Now Have Proof a Supernova Exploded Perilously Close to Earth 2.5 Million Years Ago to 53Mn, and added 53Mn to Manganese

Eric Walker added 53Mn and a number of links to Manganese, and added Manganese 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