Entries from 2021-08-01 to 1 month
Don't look lightly sanitary engineering! : Water quality purification goods welcomed by amateurs I am an expert in sanitary engineering. Especially in the field of water, I have been doing research that does not fall behind. I also worked …
Native American special (2blogs set):"Tecumseh"+"Rum&indians" Indian (Native American), Tecumseh: Its majestic poetry It is a poetry by Tecumseh that appears at the end of the movie "Navy SEALs". ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ …
"Birth of Pests-Japanese History from the Viewpoint of Insects" (Book Review) This book (Chikuma Shinsho) is not a book that actually describes common insect pest control. Is it the history of negotiations between human culture and insects…
* Number of sports tools and the degree of popularity of the sports From the 2012 London Olympics, baseball and softball was excluded from the official competition. The reason is that "there are few participating countries." Certainly, eve…