; ; ; ; ; ; Updated in 2025 : 5 : 8 : Periodic Table ;

2556; 2013; 1st in world history, Nippon researchers found new energy i.e. from Methane Hydrate (cold & frozen) to Natural Gas;

HOW formulation procedures of symbols define Civilization Type (e.g. ACT1, ACT2, ACT3), and the highest Civilization Type (e.g. ACT3) means knowing all symbols HOW to create; therefore, some symbols are restricted info, some symbols are unknown (not documented), some symbols are ... ; ( bio; density;