Eric Walker added Bismuth - Wikipedia to Bismuth

Eric Walker added TSMC announces breakthrough in 1-nanometer semiconductor - Verdict to Bismuth and TSMC

Eric Walker added Bismuth - Wikipedia and TSMC announces breakthrough in 1-nanometer semiconductor - Verdict to Bismuth, and added Bismuth to 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