2026年02月の本
・服部正也『ルワンダ中央銀行総裁日記 [増補版]』
・笹井宏之『えーえんとくちから』
＞＞過去に紹介した本はこちらから。

動画

数学界が震撼！漆職人が発見した世界初の図形とは？

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