12 September 2021


filtering


the discovery


Polymethylpentene beaker


inside the beaker


Polypropylene cup


Mt. Azuma Kofuji, from the Sicid nauen fruits box

15 September 2021

The Japan Iron & Steel Federation. Etching de Stainless Kohan ni E wo egakou. Youngster's Science Festival. http://www.kagakunosaiten.jp/convention/pdf/2013/053.pdf, http://www.kagakunosaiten.jp/convention/pdf/2019/049.pdf
Nikko toshogu shamusho. 1925. The album of Toshogu at Nikko 日光東照宮寫眞帖. Bekkaku kanpeisha toshogu shamusho. 28p(31p). https://id.ndl.go.jp/bib/000000581531
Ritchie, B. (2016, Jul 21). Make A Badge. https://youtu.be/6srRiTfAUqE


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