The author shares monthly notes on algebraic graph theory, focusing on concepts from Norman Biggs's book. Key topics include vertex orbits, regular non-vertex-transitive graphs, and distinctions between vertex-transitive, edge-transitive, and symmetric graphs. The author aims to eventually understand Tutte's theorem on arc-transitive cubic graphs.
A Science paper and several other publications have incorrectly cited the compound Cr2Gr2Te6, which does not exist. The correct compound is Cr2Ge2Te6 (chromium germanium telluride), with Ge representing germanium. This typographical error has been copied across multiple scientific papers and a book chapter.
Evelyn Wood Reading Dynamics, launched in the 1950s, popularized speed reading despite scientific evidence questioning its claims of high-speed reading with full comprehension. The movement gained credibility through presidential endorsements but research shows it's essentially skimming with poor retention.
Dry ice (solid carbon dioxide) was commercialized in 1925 and became important for refrigerated transportation, reducing shipping costs by 50%. Northeastern New Mexico's Bueyeros field became a major source of pure CO2 for dry ice production. Today, much of the extracted CO2 is used for enhanced oil recovery, creating complex climate implications.